Highly accomplished cloud fullstack and devops engineer with a proven ability to develop and execute effective infrastructure support strategies.
Aktualisiert am 30.05.2024
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.06.2024
Verfügbar zu: 100%
davon vor Ort: 100%
Fullstack
Cloud
Kubernetes
AWS
Azure
JavaScript
TypeScript
React
Node.js
DevOps
ArgoCD
Terraform
CDK
GitLab
GitHub
Git
GitOps
Container
SQL
NoSQL
Amazon RDS
PostgreSQL
MS SQL Server
English
near native/fluent speaker
German
basic/beginner communication skills

Einsatzorte

Einsatzorte

München (+200km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 Jahr 10 Monate
2022-08 - heute

Cloud DevOps Engineer

Senior Multi-Cloud Architect
Senior Multi-Cloud Architect
I had the role of Senior Cloud Infrastructure for BP - Trakneo with the mission to
migrate the Electric Mehicle Charging App from On-Premises and Azure to AWS
Cloud, resulting in a multi-cloud hybrid solution.
In order to ingest near real time data from the physical Charge Point Operators, as
IoT devices, through the OCPI protocol and to consume data by (ust doing a lot of
batch processing, we found that the process was too slow for a lot of our use cases
and we had to build a new streaming data pipeline using Apache Qafza and an event
driven approach. We migrated Apache Kafka to MSK from AWS. We started with a
hybrid multi-cloud architecture and I managed to lead over kve different systems,
with vendors and service providers, beside the on-site teams. 
Built strong pro(ect management experience, I have build a new operations team by
bringing &endesz at BP. On databases systems we used SQL Server, migrated from

on-premises and A5ure to AWS, using database management migration systems.


Responsibilities

  • Support development, implementation and maintenance of the IT strategy aligned with business requirements & targets.
  • Manage infrastructure budget and spend - AWS & Azure cost optimitation for hybrid multi-cloud architecture.
  • Develop and maintain enterprise architecture AWS & Azure cloud infrastructure focus
  • Responsible for enabling developers to use services for implementing event driven architectures in public (AWS and Azure) and private clouds, lize AWS Managed Streaming for Kafka (MSK), SNS/SQS, and EventBridge
  • Responsible for building developer tools and writing documentation for using Apache Beam with Apache Flink on Kubernetes (Minikube and Azure Kubernetes Service).
  • Managed external infrastructure IT service providers W ERP systems Odoo and Microsoft Navision, 3S Dynamics
  • Managed the planning, designing, building, implementation and operation of IT infrastructure services including new development and ma(or enhancements to existing systems
  • Serve as point of escalation, review and approval for zey issues and decisions for all infrastructure related topics


Achievements

  • Managed the IT infrastructure budget of 9: million euros, resulting in cost savings of 15%
  • Spearheaded a team of 50+Developers to initiate advanced procedures, triggers, functions, indexes&exception handling, resulting in 20%increase in productivity.
  • Led the migration of on-premises infrastructure to cloud infrastructure resulting in 30% faster processing times
  • Slashed payroll/benefits administration costs 20% by negotiating pricing and fees with vendors, while ensuring the continuation and enhancements of services
  • Coordinated with both onsite and offshore development resources from delivery partners to develop & test integrated solutions. Coordinated infrastructure management teams (team leaders)
  • Developed 2-year infrastructure technology roadmap resulting in 25% cost savings.

BP
Munich
1 Jahr 7 Monate
2021-01 - 2022-07

AWS Cloud

Lead Solution Architect CI/CD pipelines Github Actions. Aurora Serverless ...
Lead Solution Architect
  • As Lead Solution Architect for Brand Retail Execution at LEGO, I led the team of application engineers that design, build and operate Assortment Management platform on LEGO.com, the LEGO Group?s direct to customer e-commerce flagship. 
  • My role is focused on leading, coaching and mentoring the team as well as driving innovation and a strong engineering culture throughout the organization.
  • I worked closely with solution architects, infrastructure engineers, product owners, agile coaches and other senior business stakeholders to define the technical solution and ensure the engineering team delivered a world-class shopper experience.
  • I am responsible for the end-to-end software engineering, composable solution architecture and operational excellence of the high availability, low latency, distributed systems and services that form the LEGO.com technology platform and the global online payment services platform for the LEGO Group all running in the public cloud with AWS.
    Distributed systems and event-driven architecture with Amazon SNS SQS EventBridge.
    CI/CD pipelines Github Actions. Aurora Serverless DynamoDB. Dockerized Microservices architectur Node.js GraphQL API layer on AppSync TypeScript React Context API Hooks Styled Components WS ECS/Fargate & AWS Lambda Step Functions Docker Microservices IaC - AWS CDK CloudFormation
    LEGO
    8 Monate
    2020-06 - 2021-01

    Rebuilding and refactoring the web app

    Engineering Lead - AWS Cloud Architect TypeScript React React Context ...
    Engineering Lead - AWS Cloud Architect
    • Yara International ASA is a Norwegian chemical company. Its largest business area is the production of nitrogen fertilizer, however it also encompasses the production of nitrates, ammonia, urea and other nitrogen-based chemicals.
    • As a freelance lead, I was asked to help rebuilding and refactoring the Atfarm web app. Atfarm allows you to monitor your crops growth combining the N-Sensor Index with satellite imagery. Monitor the variability during all stages of growth. Atfarm basically helps you monitor the growth of your fields with satellite images. 
    • One of the main key Contribution was to lead the successful digital transformation of Atfarm app by designing and leading the implementation of a highly available, fully composable, serverless commerce architecture based running on an AWS cloud infrastructure.
    • The project was cut into several sub-projects and started with implementing the cloud infrastructure on AWS and refactoring of the client app in June 2020. By the end of the year the app has been completely redesigned and refactored with a new tech stack, a new architecture on cloud and a consistent, clear design.
      Kubernetes. Microservices architecture on cloud
      TypeScript React React Context Styled Components Mapbox Urql GraphQL NestJS GraphQL API layer with Docker AWS ECS/Fargate ECR AWS Lambda AWS SNS IaC - Terraform CircleCI MongoDB MongoDB Atlas with Mongoose
      YARA Int., Munich
      1 Jahr 5 Monate
      2019-01 - 2020-05

      Car Finder project

      Engineering Lead - AWS Cloud Architect TypeScript React Redux ...
      Engineering Lead - AWS Cloud Architect
      • Porsche Digital is a wholly-owned subsidiary of Porsche AG and serves as its digital center. Worked with cross-functional teams to not only develop customer solutions but also help define and co-design the main concepts to an end to end architecture. Being part of the Carsale Finance team, inside the main Porsche Car Finder project.
      • I was responsible for the end-to-end software engineering, composable solution architecture and operational excellence of the high availability, low latency, distributed systems and services that form the finder.porsche.com technology platform and the global online payment services platform for the Porsche Group all running in the public cloud with AWS.
        AWS ECS/Fargate & AWS Lambda IaC - Terraform
        TypeScript React Redux Styled Components Jest yarn SASS LESS CSS3 HTML5 Node.js GraphQL API layer with Docker Kubernetes. Microservices architecture AWS SNS. MongoDB Atlas Github Actions/Jenkins AWS componentsVPCs Subnetting NAT Gateway Peering AWS Step Functions
        Porsche Digital, Stuttgart
        2 Jahre 2 Monate
        2016-12 - 2019-01

        mein.eon

        Tech Lead - Full Stack TypeScript React ReactNative ...
        Tech Lead - Full Stack
        • As a Tech Lead, I was asked to help rebuilding and refactoring the front end infrastructure of E.ON platform in Munich. Until then they had built their front ends with some frameworks and tools without any particular focus on it, resulting in a bloated and inconsistent codebase. That?s why they asked me to lead the refactoring of their payment integration service, AEM author panel and their corporate website. 
        • The project was cut into several sub-projects and started with refactoring of the client integration service (payment dialogs) in December 2016, followed by the user backend in January / February 2017 and the corporate website in March and April 2017. In 2017, the payment dialogs and user dashboards have been completely redesigned and refactored with React, using Reflux as architecture and a consistent, clear design. 
        • We decided to use CSS modules in favour of the previously used PureCSS framework to follow a lean codebase approach. These saved hundreds of kilobytes in summary per project.
          Apollo with Microservices architecture
          TypeScript React ReactNative Redux Styled Components HighCharts Leaflet Jest REST APIs Node.js GraphQL MongoDB Atlas Gitlab/Jenkins IaC & Cloud Stack - Lambda S3 CloudFront Terraform Docker Kubernetes
          E.ON, Munich
          1 Jahr 10 Monate
          2015-02 - 2016-11

          Supply Chain Analytics App

          Senior Full Stack Engineer React ExtJS Redux ...
          Senior Full Stack Engineer
          • Worldwide market leader in supply chain analytics. Working in the Engineering Dep. as a Sr Full Stack developer with expert knowledge in React, ExtJS, HTML5, CSS3 (SASS), using Java on backend and advanced native JavaScript in a multidisciplinary development team using the latest technologies and projects under Agile Methodology (Scrum). Developed the Supply Chain Analytics App


          Responsibilities:

          • Worked on migrating current application from ExtJS framework to React with Redux.
          • Created rich user interfaces for FusionOps platform, using tools like React, ExtJs, ES6, Babel, Webpack and npm.
          • Worked with an agile team, as well as a group of fellow front end and back end developers.
          • Developed custom React and ExtJS components/widgets.
          • Produced dynamic, interactive data visualizations of all kinds using the power of HTML5, SVG, CSS3, FusionCharts and D3.js
          • Responsible for porting and maintaining the mobile versions.
          • Brought to life user interfaces created by design teams using latest web standards.
          • Collaborated with back end developers to create a fast and seamless information architecture.
          React ExtJS Redux ES6 Nodejs Express.js. MongoDB FusionCharts D3.js Leaflet
          Aera Technology, Bucharest
          3 Jahre 4 Monate
          2011-10 - 2015-01

          Various projects

          Senior Full Stack Engineer
          Senior Full Stack Engineer
          • Responsible for extending, modifying, and customising components of ExtJS libraries and building plug-in for grid component, integrating ExtJS grid component with Rest services, understanding of cross-browser capabilities and issues, used VBScript on backend.
          • Worked under demanding deadlines on projects of all sizes and under constant development ensuring to deliver marketing campaigns on time to hundreds of thousands of users and a fantastic customer experience. Also actively contributed to the team knowledge and skills.


          Responsibilities:

          • Design and implementation of software solutions based on the JavaScript language, using object-oriented JavaScript framework ExtJS.
          • Create Web widgets able to work with massive amounts of data.
          • Improve user experience by using a design based on web services and Ajax, reducing waiting times. · Integrated multiple data sources and databases into one system.
          • Data migration, transformation, and scripting.
          • Installed, tested and deployed monitoring solutions with Splunk services.
          • Planned, implemented and managed Splunk for long management and analytics.
          • Documenting and delivering reports on ongoing projects.
          • Helped junior developers gain understanding of OOP and of the application and apply this knowledge accordingly.
          • Interact with client and get the requirements and business solutions implemented.
          Ixia, Bucharest
          5 Jahre 2 Monate
          2006-08 - 2011-09

          Development of online projects

          Frontend Engineer
          Frontend Engineer
          • Worked as Frontend Engineer, responsible for developing online projects studies using JavaScript, jQuery, CSS with Bootstrap, HTML and to verify these projects using the SPSS database management system.
          • I have spent my first 5 years working on large scale ecommerce platforms and been involved in multiple successful digital transformations during that time.


          Responsibilities

          • Improving user interaction with the application by creating intuitive web application actions: drag & drop, copy & paste, context menu, resize, sort, etc.
          • Creating web responsive screens using MVC , HTML , CSS, JavaScript , jQuery and Bootstrap.
          • Creating API?s using Web API RESTful Services.
          • Development of new features and testing of functionality.
          • Web application maintenance.
          Ipsos Interactive Services, Bucharest

          Aus- und Weiterbildung

          Aus- und Weiterbildung

          4 Jahre 10 Monate
          2004-09 - 2009-06

          Computer Science/ Computer Engineering

          Bachelor of Automatic Control and Computer Science, Polytechnic University of Bucharest, Bucharest
          Bachelor of Automatic Control and Computer Science
          Polytechnic University of Bucharest, Bucharest

          Position

          Position

          Kompetenzen

          Kompetenzen

          Top-Skills

          Fullstack Cloud Kubernetes AWS Azure JavaScript TypeScript React Node.js DevOps ArgoCD Terraform CDK GitLab GitHub Git GitOps Container SQL NoSQL Amazon RDS PostgreSQL MS SQL Server

          Produkte / Standards / Erfahrungen / Methoden

          Profile

          Highly accomplished multi-cloud Solutions Architect with a proven ability to develop and execute effective infrastructure support strategies. Demonstrated expertise in ensuring secure, compliant, robust, reliable, scalable, and efkcient infrastructure solutions to enhance overall corporate operations. Extensive experience in effectively engaging and managing C-Level stazeholders, coupled with a strong baczground in enterprise solution architecture throughout both the presales and post-sales cycles. Szilled in utili5ing leadership abilities to recruit, train, mentor, and empower high-performance teams. Successfully led teams of over 0: developers in prominent automotive companies and spearheaded digital transformation initiatives for renowned institutions worldwide. Seezing senior technical leadership positions to combine my unwavering passion for technology with an entrepreneurial mindset, driving businesses forward through innovative technological solutions.


          Technical Qualifications

          Cloud Architecture 

          • In-depth knowledge and hands-on experience in multi cloud platforms such as AWS or Azure and private cloud solutions.
          • Serverless Architecture:  Proficiency in implementing serverless architectures and ability to architect event-driven and microservices-based solutions leveraging serverless computing - AWS Lambda, API Fateway, DynamoDB, Aurora Serverless, CloudVront, MPC, IA3, Route 0K or A5ure Vunctions.
          • Event-Driven Architecture: Expertise in designing event-driven architectures that allow systems to react and respond to events in real-time. Knowledge of event sourcing, event-driven messaging patterns, and event-driven data processing - AWS EventBridge, SNS and SQS.
          • Compute : In-depth znowledge of AGS ECj for provisioning and managing virtual servers in the cloud. Experience with AGS Auto Scaling to automatically adjust the capacity of EC2 instances based on application demand
          • Storage and Databases: Understanding of AGS storage services lize SK, EBS, EVS, as well as database services such AWS for S2L Server and 3yS2L, DynamoDB, and Redshift. AGS Storage Fateway for hybrid cloud storage integration, ElastiCache for in-memory caching.
          • Data Transfer and Migration:  Experience in transferring and migrating data to and from AGS. Qnowledge of services lize AGS DataSync, AGS Snowball, and AGS Database 3igration Service )D3S+ for efkcient and secure data transfer and migration
          • Data Management:  Designing and implementing data architectures on AGS, including data lazes using SK and AGS Flue, data warehousing using Redshift, ETL processes and data-pipelines with Talend, data governance, and data integration.on.
          • Multi-Cloud Hybrid Architecture:   Site-to-Site MPN connections between cloud providers or on-premises for building multi-cloud hybrid architectures - AWS Direct Connect, A5ure Express Route.
          • Infrastructure as Code : Prokciency in AGS CloudVormation, AGS CDQ and Terraform for provisioning and managing AGS or A5ure resources in a repeatable and automated manner


          Containerization

          • Containerization Technologies:  Expertise in containerization technologies such as Docker, Docker Compose and container orchestration platforms such as AWS Fargate, AWS Elastic Container Service (ECS) with ECR and AWS Elastic Kubernetes Service (EKS).
          • Container Orchestration: Proficiency in designing and managing containerized applications using container orchestration platforms -Kubernetes. Understanding of Kubernetes architecture, cluster deployment, scaling, load balancing, and integration with AWS services.
          • Cluster Provisioning and Configuration: Knowledge of provisioning and configuring Kubernetes clusters. Familiarity with tools like kubectl, kops, kubespray, or Azure AKS for cluster setup and management.


          Streaming Data

          • Stream Processing: Knowledge of stream processing frameworks such as Apache Kafka, Amazon Kinesis, RabbitM2. Proficiency in setting up and configuring Kafka clusters, managing topics, partitions, and consumer groups.

          • AWS MSK ( Managed Streaming for Apache Kafka): Experience with AGS 3SQ, a fully managed service for running Apache Qafza. Ability to deploy and manage 3SQ clusters on AGS, ensuring high availability and scalability.
          • Kafka Cluster Management:   Prokciency in managing Qafza clusters, including cluster conkguration, deployment, monitoring, and troubleshooting. knowledge of cluster sizing, replication factors, and fault tolerance.
          • Kafka Ecosystem:  Familiarity with the Kafka ecosystem and related technologies, such as Kafka Connect, Kafka Streams, and Schema Registry. Ability to leverage these components to build robust and scalable data streaming solutions.


          Cybersecurity

          • Cybersecurity Knowledge:  Deep understanding of cybersecurity principles, frameworks, best practices, and industry standards such as NIST Cybersecurity Framework, ISO 27001, and GDPR.
          • AWS Security Services:  In-depth knowledge and hands-on experience with AGS security services, such as AWS Identity and Access Management (IAM), AWS Security Hub, AWS CloudTrail, AWS WAV, AWS FuardDuty, AWS Secrets Manager, and AWS Key Management Service (KMS). AWS Shield provides automatic protection against common and larger-scale DDoS attacks.
          • Network Security:  Knowledge of AWS networking services, such as Amazon VPC, AWS Direct Connect, and AWS Transit Gateway, and the ability to design and implement secure network architectures, including subnetting, network ACLs, and security group configurations.


          Full-stack

          • Expert level ,SR TypescriptR React, React Native, and Redux for building interactive and responsive user interfaces.
          • Familiarity with popular frontend libraries and tools such as Apollo Client and UrJl for QraphL. integration.
          • Expertise in Node.js  for server-side development, including REST APIs, NestJS framework and GraphQL APIs
          • Ability to design and implement efficient GraphQL APIs using Apollo Server or Federation and AWS AppSync.
          • Solid understanding of database systems, including SL. and xoSL. databases such as MongoDB, PostgreSQL, and MySQL. Understand database connectivity, querying, and ORM/ODM libraries like Mongoose or Sequelize.
          • Authentication and Authorization:  Experience in implementing authentication and authorication mechanisms in Node.Js applications. Familiarity with concepts like JWT (JSON Web Tokens), OAuth, and session management or AWS Cognito.


          DevOps and Automation

          • Build Automation and CIZCD Pipelines Experience with build automation tools- Jenkins, Bamboo or CircleCI, Github Actions with self-hosted runner.
          • Continuous Monitoring and Logging Proficiency in monitoring application performance, logs, and metrics to identify issues and optimize system performance.using tools - Datadog, Prometheus, Grafana or ELK stack
          • Configuration 3anagement Understanding of configuration management tools. Ability to manage and automate software conkgurations across different environments  - Ansible, Puppet or Chef.
          • Scripting and Automation Strong scripting szills in languages  - Python, Bash or PowerShell.

          Einsatzorte

          Einsatzorte

          München (+200km)
          Deutschland, Schweiz, Österreich
          möglich

          Projekte

          Projekte

          1 Jahr 10 Monate
          2022-08 - heute

          Cloud DevOps Engineer

          Senior Multi-Cloud Architect
          Senior Multi-Cloud Architect
          I had the role of Senior Cloud Infrastructure for BP - Trakneo with the mission to
          migrate the Electric Mehicle Charging App from On-Premises and Azure to AWS
          Cloud, resulting in a multi-cloud hybrid solution.
          In order to ingest near real time data from the physical Charge Point Operators, as
          IoT devices, through the OCPI protocol and to consume data by (ust doing a lot of
          batch processing, we found that the process was too slow for a lot of our use cases
          and we had to build a new streaming data pipeline using Apache Qafza and an event
          driven approach. We migrated Apache Kafka to MSK from AWS. We started with a
          hybrid multi-cloud architecture and I managed to lead over kve different systems,
          with vendors and service providers, beside the on-site teams. 
          Built strong pro(ect management experience, I have build a new operations team by
          bringing &endesz at BP. On databases systems we used SQL Server, migrated from

          on-premises and A5ure to AWS, using database management migration systems.


          Responsibilities

          • Support development, implementation and maintenance of the IT strategy aligned with business requirements & targets.
          • Manage infrastructure budget and spend - AWS & Azure cost optimitation for hybrid multi-cloud architecture.
          • Develop and maintain enterprise architecture AWS & Azure cloud infrastructure focus
          • Responsible for enabling developers to use services for implementing event driven architectures in public (AWS and Azure) and private clouds, lize AWS Managed Streaming for Kafka (MSK), SNS/SQS, and EventBridge
          • Responsible for building developer tools and writing documentation for using Apache Beam with Apache Flink on Kubernetes (Minikube and Azure Kubernetes Service).
          • Managed external infrastructure IT service providers W ERP systems Odoo and Microsoft Navision, 3S Dynamics
          • Managed the planning, designing, building, implementation and operation of IT infrastructure services including new development and ma(or enhancements to existing systems
          • Serve as point of escalation, review and approval for zey issues and decisions for all infrastructure related topics


          Achievements

          • Managed the IT infrastructure budget of 9: million euros, resulting in cost savings of 15%
          • Spearheaded a team of 50+Developers to initiate advanced procedures, triggers, functions, indexes&exception handling, resulting in 20%increase in productivity.
          • Led the migration of on-premises infrastructure to cloud infrastructure resulting in 30% faster processing times
          • Slashed payroll/benefits administration costs 20% by negotiating pricing and fees with vendors, while ensuring the continuation and enhancements of services
          • Coordinated with both onsite and offshore development resources from delivery partners to develop & test integrated solutions. Coordinated infrastructure management teams (team leaders)
          • Developed 2-year infrastructure technology roadmap resulting in 25% cost savings.

          BP
          Munich
          1 Jahr 7 Monate
          2021-01 - 2022-07

          AWS Cloud

          Lead Solution Architect CI/CD pipelines Github Actions. Aurora Serverless ...
          Lead Solution Architect
          • As Lead Solution Architect for Brand Retail Execution at LEGO, I led the team of application engineers that design, build and operate Assortment Management platform on LEGO.com, the LEGO Group?s direct to customer e-commerce flagship. 
          • My role is focused on leading, coaching and mentoring the team as well as driving innovation and a strong engineering culture throughout the organization.
          • I worked closely with solution architects, infrastructure engineers, product owners, agile coaches and other senior business stakeholders to define the technical solution and ensure the engineering team delivered a world-class shopper experience.
          • I am responsible for the end-to-end software engineering, composable solution architecture and operational excellence of the high availability, low latency, distributed systems and services that form the LEGO.com technology platform and the global online payment services platform for the LEGO Group all running in the public cloud with AWS.
            Distributed systems and event-driven architecture with Amazon SNS SQS EventBridge.
            CI/CD pipelines Github Actions. Aurora Serverless DynamoDB. Dockerized Microservices architectur Node.js GraphQL API layer on AppSync TypeScript React Context API Hooks Styled Components WS ECS/Fargate & AWS Lambda Step Functions Docker Microservices IaC - AWS CDK CloudFormation
            LEGO
            8 Monate
            2020-06 - 2021-01

            Rebuilding and refactoring the web app

            Engineering Lead - AWS Cloud Architect TypeScript React React Context ...
            Engineering Lead - AWS Cloud Architect
            • Yara International ASA is a Norwegian chemical company. Its largest business area is the production of nitrogen fertilizer, however it also encompasses the production of nitrates, ammonia, urea and other nitrogen-based chemicals.
            • As a freelance lead, I was asked to help rebuilding and refactoring the Atfarm web app. Atfarm allows you to monitor your crops growth combining the N-Sensor Index with satellite imagery. Monitor the variability during all stages of growth. Atfarm basically helps you monitor the growth of your fields with satellite images. 
            • One of the main key Contribution was to lead the successful digital transformation of Atfarm app by designing and leading the implementation of a highly available, fully composable, serverless commerce architecture based running on an AWS cloud infrastructure.
            • The project was cut into several sub-projects and started with implementing the cloud infrastructure on AWS and refactoring of the client app in June 2020. By the end of the year the app has been completely redesigned and refactored with a new tech stack, a new architecture on cloud and a consistent, clear design.
              Kubernetes. Microservices architecture on cloud
              TypeScript React React Context Styled Components Mapbox Urql GraphQL NestJS GraphQL API layer with Docker AWS ECS/Fargate ECR AWS Lambda AWS SNS IaC - Terraform CircleCI MongoDB MongoDB Atlas with Mongoose
              YARA Int., Munich
              1 Jahr 5 Monate
              2019-01 - 2020-05

              Car Finder project

              Engineering Lead - AWS Cloud Architect TypeScript React Redux ...
              Engineering Lead - AWS Cloud Architect
              • Porsche Digital is a wholly-owned subsidiary of Porsche AG and serves as its digital center. Worked with cross-functional teams to not only develop customer solutions but also help define and co-design the main concepts to an end to end architecture. Being part of the Carsale Finance team, inside the main Porsche Car Finder project.
              • I was responsible for the end-to-end software engineering, composable solution architecture and operational excellence of the high availability, low latency, distributed systems and services that form the finder.porsche.com technology platform and the global online payment services platform for the Porsche Group all running in the public cloud with AWS.
                AWS ECS/Fargate & AWS Lambda IaC - Terraform
                TypeScript React Redux Styled Components Jest yarn SASS LESS CSS3 HTML5 Node.js GraphQL API layer with Docker Kubernetes. Microservices architecture AWS SNS. MongoDB Atlas Github Actions/Jenkins AWS componentsVPCs Subnetting NAT Gateway Peering AWS Step Functions
                Porsche Digital, Stuttgart
                2 Jahre 2 Monate
                2016-12 - 2019-01

                mein.eon

                Tech Lead - Full Stack TypeScript React ReactNative ...
                Tech Lead - Full Stack
                • As a Tech Lead, I was asked to help rebuilding and refactoring the front end infrastructure of E.ON platform in Munich. Until then they had built their front ends with some frameworks and tools without any particular focus on it, resulting in a bloated and inconsistent codebase. That?s why they asked me to lead the refactoring of their payment integration service, AEM author panel and their corporate website. 
                • The project was cut into several sub-projects and started with refactoring of the client integration service (payment dialogs) in December 2016, followed by the user backend in January / February 2017 and the corporate website in March and April 2017. In 2017, the payment dialogs and user dashboards have been completely redesigned and refactored with React, using Reflux as architecture and a consistent, clear design. 
                • We decided to use CSS modules in favour of the previously used PureCSS framework to follow a lean codebase approach. These saved hundreds of kilobytes in summary per project.
                  Apollo with Microservices architecture
                  TypeScript React ReactNative Redux Styled Components HighCharts Leaflet Jest REST APIs Node.js GraphQL MongoDB Atlas Gitlab/Jenkins IaC & Cloud Stack - Lambda S3 CloudFront Terraform Docker Kubernetes
                  E.ON, Munich
                  1 Jahr 10 Monate
                  2015-02 - 2016-11

                  Supply Chain Analytics App

                  Senior Full Stack Engineer React ExtJS Redux ...
                  Senior Full Stack Engineer
                  • Worldwide market leader in supply chain analytics. Working in the Engineering Dep. as a Sr Full Stack developer with expert knowledge in React, ExtJS, HTML5, CSS3 (SASS), using Java on backend and advanced native JavaScript in a multidisciplinary development team using the latest technologies and projects under Agile Methodology (Scrum). Developed the Supply Chain Analytics App


                  Responsibilities:

                  • Worked on migrating current application from ExtJS framework to React with Redux.
                  • Created rich user interfaces for FusionOps platform, using tools like React, ExtJs, ES6, Babel, Webpack and npm.
                  • Worked with an agile team, as well as a group of fellow front end and back end developers.
                  • Developed custom React and ExtJS components/widgets.
                  • Produced dynamic, interactive data visualizations of all kinds using the power of HTML5, SVG, CSS3, FusionCharts and D3.js
                  • Responsible for porting and maintaining the mobile versions.
                  • Brought to life user interfaces created by design teams using latest web standards.
                  • Collaborated with back end developers to create a fast and seamless information architecture.
                  React ExtJS Redux ES6 Nodejs Express.js. MongoDB FusionCharts D3.js Leaflet
                  Aera Technology, Bucharest
                  3 Jahre 4 Monate
                  2011-10 - 2015-01

                  Various projects

                  Senior Full Stack Engineer
                  Senior Full Stack Engineer
                  • Responsible for extending, modifying, and customising components of ExtJS libraries and building plug-in for grid component, integrating ExtJS grid component with Rest services, understanding of cross-browser capabilities and issues, used VBScript on backend.
                  • Worked under demanding deadlines on projects of all sizes and under constant development ensuring to deliver marketing campaigns on time to hundreds of thousands of users and a fantastic customer experience. Also actively contributed to the team knowledge and skills.


                  Responsibilities:

                  • Design and implementation of software solutions based on the JavaScript language, using object-oriented JavaScript framework ExtJS.
                  • Create Web widgets able to work with massive amounts of data.
                  • Improve user experience by using a design based on web services and Ajax, reducing waiting times. · Integrated multiple data sources and databases into one system.
                  • Data migration, transformation, and scripting.
                  • Installed, tested and deployed monitoring solutions with Splunk services.
                  • Planned, implemented and managed Splunk for long management and analytics.
                  • Documenting and delivering reports on ongoing projects.
                  • Helped junior developers gain understanding of OOP and of the application and apply this knowledge accordingly.
                  • Interact with client and get the requirements and business solutions implemented.
                  Ixia, Bucharest
                  5 Jahre 2 Monate
                  2006-08 - 2011-09

                  Development of online projects

                  Frontend Engineer
                  Frontend Engineer
                  • Worked as Frontend Engineer, responsible for developing online projects studies using JavaScript, jQuery, CSS with Bootstrap, HTML and to verify these projects using the SPSS database management system.
                  • I have spent my first 5 years working on large scale ecommerce platforms and been involved in multiple successful digital transformations during that time.


                  Responsibilities

                  • Improving user interaction with the application by creating intuitive web application actions: drag & drop, copy & paste, context menu, resize, sort, etc.
                  • Creating web responsive screens using MVC , HTML , CSS, JavaScript , jQuery and Bootstrap.
                  • Creating API?s using Web API RESTful Services.
                  • Development of new features and testing of functionality.
                  • Web application maintenance.
                  Ipsos Interactive Services, Bucharest

                  Aus- und Weiterbildung

                  Aus- und Weiterbildung

                  4 Jahre 10 Monate
                  2004-09 - 2009-06

                  Computer Science/ Computer Engineering

                  Bachelor of Automatic Control and Computer Science, Polytechnic University of Bucharest, Bucharest
                  Bachelor of Automatic Control and Computer Science
                  Polytechnic University of Bucharest, Bucharest

                  Position

                  Position

                  Kompetenzen

                  Kompetenzen

                  Top-Skills

                  Fullstack Cloud Kubernetes AWS Azure JavaScript TypeScript React Node.js DevOps ArgoCD Terraform CDK GitLab GitHub Git GitOps Container SQL NoSQL Amazon RDS PostgreSQL MS SQL Server

                  Produkte / Standards / Erfahrungen / Methoden

                  Profile

                  Highly accomplished multi-cloud Solutions Architect with a proven ability to develop and execute effective infrastructure support strategies. Demonstrated expertise in ensuring secure, compliant, robust, reliable, scalable, and efkcient infrastructure solutions to enhance overall corporate operations. Extensive experience in effectively engaging and managing C-Level stazeholders, coupled with a strong baczground in enterprise solution architecture throughout both the presales and post-sales cycles. Szilled in utili5ing leadership abilities to recruit, train, mentor, and empower high-performance teams. Successfully led teams of over 0: developers in prominent automotive companies and spearheaded digital transformation initiatives for renowned institutions worldwide. Seezing senior technical leadership positions to combine my unwavering passion for technology with an entrepreneurial mindset, driving businesses forward through innovative technological solutions.


                  Technical Qualifications

                  Cloud Architecture 

                  • In-depth knowledge and hands-on experience in multi cloud platforms such as AWS or Azure and private cloud solutions.
                  • Serverless Architecture:  Proficiency in implementing serverless architectures and ability to architect event-driven and microservices-based solutions leveraging serverless computing - AWS Lambda, API Fateway, DynamoDB, Aurora Serverless, CloudVront, MPC, IA3, Route 0K or A5ure Vunctions.
                  • Event-Driven Architecture: Expertise in designing event-driven architectures that allow systems to react and respond to events in real-time. Knowledge of event sourcing, event-driven messaging patterns, and event-driven data processing - AWS EventBridge, SNS and SQS.
                  • Compute : In-depth znowledge of AGS ECj for provisioning and managing virtual servers in the cloud. Experience with AGS Auto Scaling to automatically adjust the capacity of EC2 instances based on application demand
                  • Storage and Databases: Understanding of AGS storage services lize SK, EBS, EVS, as well as database services such AWS for S2L Server and 3yS2L, DynamoDB, and Redshift. AGS Storage Fateway for hybrid cloud storage integration, ElastiCache for in-memory caching.
                  • Data Transfer and Migration:  Experience in transferring and migrating data to and from AGS. Qnowledge of services lize AGS DataSync, AGS Snowball, and AGS Database 3igration Service )D3S+ for efkcient and secure data transfer and migration
                  • Data Management:  Designing and implementing data architectures on AGS, including data lazes using SK and AGS Flue, data warehousing using Redshift, ETL processes and data-pipelines with Talend, data governance, and data integration.on.
                  • Multi-Cloud Hybrid Architecture:   Site-to-Site MPN connections between cloud providers or on-premises for building multi-cloud hybrid architectures - AWS Direct Connect, A5ure Express Route.
                  • Infrastructure as Code : Prokciency in AGS CloudVormation, AGS CDQ and Terraform for provisioning and managing AGS or A5ure resources in a repeatable and automated manner


                  Containerization

                  • Containerization Technologies:  Expertise in containerization technologies such as Docker, Docker Compose and container orchestration platforms such as AWS Fargate, AWS Elastic Container Service (ECS) with ECR and AWS Elastic Kubernetes Service (EKS).
                  • Container Orchestration: Proficiency in designing and managing containerized applications using container orchestration platforms -Kubernetes. Understanding of Kubernetes architecture, cluster deployment, scaling, load balancing, and integration with AWS services.
                  • Cluster Provisioning and Configuration: Knowledge of provisioning and configuring Kubernetes clusters. Familiarity with tools like kubectl, kops, kubespray, or Azure AKS for cluster setup and management.


                  Streaming Data

                  • Stream Processing: Knowledge of stream processing frameworks such as Apache Kafka, Amazon Kinesis, RabbitM2. Proficiency in setting up and configuring Kafka clusters, managing topics, partitions, and consumer groups.

                  • AWS MSK ( Managed Streaming for Apache Kafka): Experience with AGS 3SQ, a fully managed service for running Apache Qafza. Ability to deploy and manage 3SQ clusters on AGS, ensuring high availability and scalability.
                  • Kafka Cluster Management:   Prokciency in managing Qafza clusters, including cluster conkguration, deployment, monitoring, and troubleshooting. knowledge of cluster sizing, replication factors, and fault tolerance.
                  • Kafka Ecosystem:  Familiarity with the Kafka ecosystem and related technologies, such as Kafka Connect, Kafka Streams, and Schema Registry. Ability to leverage these components to build robust and scalable data streaming solutions.


                  Cybersecurity

                  • Cybersecurity Knowledge:  Deep understanding of cybersecurity principles, frameworks, best practices, and industry standards such as NIST Cybersecurity Framework, ISO 27001, and GDPR.
                  • AWS Security Services:  In-depth knowledge and hands-on experience with AGS security services, such as AWS Identity and Access Management (IAM), AWS Security Hub, AWS CloudTrail, AWS WAV, AWS FuardDuty, AWS Secrets Manager, and AWS Key Management Service (KMS). AWS Shield provides automatic protection against common and larger-scale DDoS attacks.
                  • Network Security:  Knowledge of AWS networking services, such as Amazon VPC, AWS Direct Connect, and AWS Transit Gateway, and the ability to design and implement secure network architectures, including subnetting, network ACLs, and security group configurations.


                  Full-stack

                  • Expert level ,SR TypescriptR React, React Native, and Redux for building interactive and responsive user interfaces.
                  • Familiarity with popular frontend libraries and tools such as Apollo Client and UrJl for QraphL. integration.
                  • Expertise in Node.js  for server-side development, including REST APIs, NestJS framework and GraphQL APIs
                  • Ability to design and implement efficient GraphQL APIs using Apollo Server or Federation and AWS AppSync.
                  • Solid understanding of database systems, including SL. and xoSL. databases such as MongoDB, PostgreSQL, and MySQL. Understand database connectivity, querying, and ORM/ODM libraries like Mongoose or Sequelize.
                  • Authentication and Authorization:  Experience in implementing authentication and authorication mechanisms in Node.Js applications. Familiarity with concepts like JWT (JSON Web Tokens), OAuth, and session management or AWS Cognito.


                  DevOps and Automation

                  • Build Automation and CIZCD Pipelines Experience with build automation tools- Jenkins, Bamboo or CircleCI, Github Actions with self-hosted runner.
                  • Continuous Monitoring and Logging Proficiency in monitoring application performance, logs, and metrics to identify issues and optimize system performance.using tools - Datadog, Prometheus, Grafana or ELK stack
                  • Configuration 3anagement Understanding of configuration management tools. Ability to manage and automate software conkgurations across different environments  - Ansible, Puppet or Chef.
                  • Scripting and Automation Strong scripting szills in languages  - Python, Bash or PowerShell.

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