React, Javascript, nodeJS, Python, Apache Kafka, build pipelines, deployment, CI, CD, Docker
Aktualisiert am 23.10.2023
Profil
Freiberufler / Selbstständiger
Verfügbar ab: 23.10.2023
Verfügbar zu: 100%
davon vor Ort: 100%

Einsatzorte

Einsatzorte

Berlin (+100km) Malchin (+100km)
nicht möglich

Projekte

Projekte

2 Jahre 4 Monate
2022-01 - heute

Infrastructure & Development

Developer React Node.js Typescript ...
Developer
  • Full-stack development of SaaS product for medical supply product stores
  • Focus on search engine for all authorized medical products in Germany
  • Implementation of multiple search index strategies and per store configurations for product indizes
React Node.js Typescript Algolia
Sanistar Deutschland GmbH
3 Jahre 3 Monate
2021-02 - heute

Machine Learning and Software Engineering

Lecturer Jira Python git ...
Lecturer
  • Developed a video based full stack machine learning course for adult education working together with Digethic Business School (URL on request)
  • Lecturer for 3 months courses teaching basics of software engineering and advanced practices like agile development processes, git, GitHub, testing, API development, CI/CD, model deployment
Jira Python git GitHub Flask Heroku
4 Jahre 4 Monate
2020-01 - heute

Ongoing Support & Development

React (Gatsby) Docker Gitlab ...
  • Initial setup of development & deployment infrastructure, setup of different micro services
  • Frontend development with React & Typescript
  • Provided a Gatsby starter package that is now featured on the Gatsby website: on rquest


Special Responsibility:

Lead team of 5 devs (frontend, backend, infrastructure), lead architect for overall system architecture

React (Gatsby) Docker Gitlab Netlify CraftCMS GraphQL Algolia Libpixel
Bündnis 90/Die Grünen ? party of the German Bundestsag
7 Jahre 9 Monate
2016-08 - heute

Develop tech stacks & infrastructure

Co-founder, Software Engineer Node.js React Postgres ...
Co-founder, Software Engineer
  • Develop tech stacks & infrastructure for (on request) projects (Node.js, Python, R, React, GraphQL)
  • Implementation SCRUM & DevOps Workflows (Infrastructure as Code, Build & Deployment Pipelines, Automated Testing, Auto-Scaling, Logging & Monitoring)
  • Cross-Industry experience, main focus on pharma and e-commerce
  • Technical project management, stakeholder management especially in big data environments and machine learning projects


Special Responsibility:

Hire and lead a team of 5 to 10 devs, define development workflow, lead architect for software and machine learning projects

Node.js React Postgres GraphQL Python R AWS Docker
on request
1 Jahr 1 Monat
2022-08 - 2023-08

Designing system architecture and processes

Tech Lead Frontend React Cloudflare Typescript ...
Tech Lead Frontend
  • Designing system architecture and processes for multiple headless ecommerce shops and connected systems like product information management, CMS, Microservices
  • Providing technical guidance and shaping the way the team works


Special Responsibility:

Scaling a frontend team from 3 to 15+ people, involved into hiring process

React Cloudflare Typescript GraphQL Contentful Shopify Commercetools Akaneo
The Quality Group GmbH
4 Monate
2019-06 - 2019-09

Infrastructure & Development

Freelancer NodeJS Serverless Terraform ...
Freelancer
  • Development of central user platform API?s & single sign on features
  • Setup AWS Infrastructure (Terraform), Serverless Project & Lambda functions
  • Focus on high data encryption, safety & flexibility regarding migrations and changes of single micro services


Special Responsibility:

Define technical user authentication workflows, Involved in final decisions about authentication framework, infrastructure, security and implementation

NodeJS Serverless Terraform AWS Lambda React Docker
Edeka Digital GmbH
4 Monate
2018-12 - 2019-03

Infrastructure & Development

React (Gatsby) Docker Gitlab ...
  • Initial setup of development & deployment infrastructure, setup of different micro services
  • Frontend development with React & Typescript
  • Provided a Gatsby starter package that is now featured on the Gatsby website: on request


Special Responsibility:

Lead team of 5 devs (frontend, backend, infrastructure), lead architect for overall system architecture

React (Gatsby) Docker Gitlab Netlify CraftCMS GraphQL Algolia Libpixel
Bündnis 90/Die Grünen - party of the German Bundestsag
3 Monate
2018-09 - 2018-11

Data Management Plattform

Freelancer NodeJS Apache Kafka Apache Spark ...
Freelancer
  • Set up a micro service infrastructure for data stream processing with Apache Kafka, Apache Spark, MongoDB
  • Build development environment for data scientists
  • Set up a complete data workflow from simulating data streams to splitting load on different Kafka workers, processing data in Spark and storing data in MongoDB
NodeJS Apache Kafka Apache Spark MongoDB
ScutiX
1 Jahr 5 Monate
2017-06 - 2018-10

Development shop application frontend

Freelance Software Engineer React Typescript MobX ...
Freelance Software Engineer
  • Development shop application frontend (React, Typescript, MobX/Redux, Jest, Webpack), Coordination between UX team and developers
  • Relaunch of complete Frontend, including transition from Redux to MobX
React Typescript MobX Redux Jest Laravel (Backend PHP) Jenkins (QA and Test Automation)
About You GmbH ? Shop Applications
5 Monate
2017-02 - 2017-06

E-Commerce Platform zoo.de

PHP Laravel
  • Built the biggest German platform for pet supplies (100.000 products)
  • Interim project lead, Maintaining and developing the platform
PHP Laravel
zoo.de Social Media GmbH
11 Monate
2016-04 - 2017-02

Development of customer loyalty and analytics software

Technical Lead Customer Loyalty Startup, Co-founder Node.js React PostgreSQL ...
Technical Lead Customer Loyalty Startup, Co-founder
  • Development of customer loyalty and analytics software in SME retail business
  • Implementation of REST-Services, React Native app development, In-store tracking with iBeacontechnology
  • Setup Server-Infrastructure on Amazon Web Services (AWS), Release Management, QA, mentor for staff and interns
Node.js React PostgreSQL Docker AWS
on request
4 Jahre 7 Monate
2011-10 - 2016-04

Studying and working experience

Studied and worked Java PHP MSSQL ...
Studied and worked
  • Studied Business Informatics beginning 2011 and started as a working student for Mitel and later IBM, developing in-house systems like CRM software
  • Build interfaces and APIs to corporate systems like SAP, SalesForce
  • Offered full-time contract after studies, declined to found an own business
Java PHP MSSQL MySQL
Mitel & IBM

Aus- und Weiterbildung

Aus- und Weiterbildung

  • Master of Science Business Informatics
  • Bachelor in Computer Science

Position

Position

  • CTO

Kompetenzen

Kompetenzen

Produkte / Standards / Erfahrungen / Methoden

Profile

I am a software engineer by heart and I love to code every day ? I kind of feel uncomfortable when there is no VS Code or at least a Terminal opened on my screen. I dont stick to a specific language or specific frameworks, but I feel enthusiastic for Javascript and Python.


Achievements

  • Bachelor in Computer Science
  • Foundet [Company name on request] in 2016
  • Managed to form a small but efficient engineering team and established an agile development workflow at (on request)

Short Summary

  • 12 years of experience working in developer teams of all sizes, e.g. Mitel, IBM, About You, Edeka, Bayer, SinnerSchrader
  • Proficient in Javascript, Typescript, Node.js, Docker, AWS, React
  • Lecturer for Machine Learning & Software Engineering
  • Experience building and deploying production AWS infrastructure via infrastructure as code, e.g. AWS CDK, Terraform
  • AWS user since 2016, experience in many core AWS services (EC2, EB, ECR + ECS, CloudFormation, RDS, Lambda, API Gateway, Systems Manager, CodeCommit, CodeBuild, CodeDeploy)
  • Experience as technical lead in multiple developer teams, building a strong SCRUM workflow, driving decisions, encouraging growth and optimization of development processes


Super Strong Skills in:

  • Thinking code full-stack, from DevOps to Frontend
  • Automation in every range from local tooling (linting, formatting, commit-hooks) to code build in CI environments to multi-environment deployments to completely autogenerated APIs
  • Work with any kind of data access like databases, REST APIs, GraphQL
  • Creating, maintaining and leveraging clean & clear development processes like gitflow, SCRUM, release processes and versioning
  • Containerization with Docker

Things I am working on to Improve

  • Wrapping my head around CSS animations
  • Building more experience in Cloudflare Workers and V8 Engine
  • Sharping technical UX skills, e.g. Optimistic UI, web streaming
  • Trying out test-driven development
  • Give back to the Open Source community, open more relevant GitHub issues, do more Open Source contributions

Einsatzorte

Einsatzorte

Berlin (+100km) Malchin (+100km)
nicht möglich

Projekte

Projekte

2 Jahre 4 Monate
2022-01 - heute

Infrastructure & Development

Developer React Node.js Typescript ...
Developer
  • Full-stack development of SaaS product for medical supply product stores
  • Focus on search engine for all authorized medical products in Germany
  • Implementation of multiple search index strategies and per store configurations for product indizes
React Node.js Typescript Algolia
Sanistar Deutschland GmbH
3 Jahre 3 Monate
2021-02 - heute

Machine Learning and Software Engineering

Lecturer Jira Python git ...
Lecturer
  • Developed a video based full stack machine learning course for adult education working together with Digethic Business School (URL on request)
  • Lecturer for 3 months courses teaching basics of software engineering and advanced practices like agile development processes, git, GitHub, testing, API development, CI/CD, model deployment
Jira Python git GitHub Flask Heroku
4 Jahre 4 Monate
2020-01 - heute

Ongoing Support & Development

React (Gatsby) Docker Gitlab ...
  • Initial setup of development & deployment infrastructure, setup of different micro services
  • Frontend development with React & Typescript
  • Provided a Gatsby starter package that is now featured on the Gatsby website: on rquest


Special Responsibility:

Lead team of 5 devs (frontend, backend, infrastructure), lead architect for overall system architecture

React (Gatsby) Docker Gitlab Netlify CraftCMS GraphQL Algolia Libpixel
Bündnis 90/Die Grünen ? party of the German Bundestsag
7 Jahre 9 Monate
2016-08 - heute

Develop tech stacks & infrastructure

Co-founder, Software Engineer Node.js React Postgres ...
Co-founder, Software Engineer
  • Develop tech stacks & infrastructure for (on request) projects (Node.js, Python, R, React, GraphQL)
  • Implementation SCRUM & DevOps Workflows (Infrastructure as Code, Build & Deployment Pipelines, Automated Testing, Auto-Scaling, Logging & Monitoring)
  • Cross-Industry experience, main focus on pharma and e-commerce
  • Technical project management, stakeholder management especially in big data environments and machine learning projects


Special Responsibility:

Hire and lead a team of 5 to 10 devs, define development workflow, lead architect for software and machine learning projects

Node.js React Postgres GraphQL Python R AWS Docker
on request
1 Jahr 1 Monat
2022-08 - 2023-08

Designing system architecture and processes

Tech Lead Frontend React Cloudflare Typescript ...
Tech Lead Frontend
  • Designing system architecture and processes for multiple headless ecommerce shops and connected systems like product information management, CMS, Microservices
  • Providing technical guidance and shaping the way the team works


Special Responsibility:

Scaling a frontend team from 3 to 15+ people, involved into hiring process

React Cloudflare Typescript GraphQL Contentful Shopify Commercetools Akaneo
The Quality Group GmbH
4 Monate
2019-06 - 2019-09

Infrastructure & Development

Freelancer NodeJS Serverless Terraform ...
Freelancer
  • Development of central user platform API?s & single sign on features
  • Setup AWS Infrastructure (Terraform), Serverless Project & Lambda functions
  • Focus on high data encryption, safety & flexibility regarding migrations and changes of single micro services


Special Responsibility:

Define technical user authentication workflows, Involved in final decisions about authentication framework, infrastructure, security and implementation

NodeJS Serverless Terraform AWS Lambda React Docker
Edeka Digital GmbH
4 Monate
2018-12 - 2019-03

Infrastructure & Development

React (Gatsby) Docker Gitlab ...
  • Initial setup of development & deployment infrastructure, setup of different micro services
  • Frontend development with React & Typescript
  • Provided a Gatsby starter package that is now featured on the Gatsby website: on request


Special Responsibility:

Lead team of 5 devs (frontend, backend, infrastructure), lead architect for overall system architecture

React (Gatsby) Docker Gitlab Netlify CraftCMS GraphQL Algolia Libpixel
Bündnis 90/Die Grünen - party of the German Bundestsag
3 Monate
2018-09 - 2018-11

Data Management Plattform

Freelancer NodeJS Apache Kafka Apache Spark ...
Freelancer
  • Set up a micro service infrastructure for data stream processing with Apache Kafka, Apache Spark, MongoDB
  • Build development environment for data scientists
  • Set up a complete data workflow from simulating data streams to splitting load on different Kafka workers, processing data in Spark and storing data in MongoDB
NodeJS Apache Kafka Apache Spark MongoDB
ScutiX
1 Jahr 5 Monate
2017-06 - 2018-10

Development shop application frontend

Freelance Software Engineer React Typescript MobX ...
Freelance Software Engineer
  • Development shop application frontend (React, Typescript, MobX/Redux, Jest, Webpack), Coordination between UX team and developers
  • Relaunch of complete Frontend, including transition from Redux to MobX
React Typescript MobX Redux Jest Laravel (Backend PHP) Jenkins (QA and Test Automation)
About You GmbH ? Shop Applications
5 Monate
2017-02 - 2017-06

E-Commerce Platform zoo.de

PHP Laravel
  • Built the biggest German platform for pet supplies (100.000 products)
  • Interim project lead, Maintaining and developing the platform
PHP Laravel
zoo.de Social Media GmbH
11 Monate
2016-04 - 2017-02

Development of customer loyalty and analytics software

Technical Lead Customer Loyalty Startup, Co-founder Node.js React PostgreSQL ...
Technical Lead Customer Loyalty Startup, Co-founder
  • Development of customer loyalty and analytics software in SME retail business
  • Implementation of REST-Services, React Native app development, In-store tracking with iBeacontechnology
  • Setup Server-Infrastructure on Amazon Web Services (AWS), Release Management, QA, mentor for staff and interns
Node.js React PostgreSQL Docker AWS
on request
4 Jahre 7 Monate
2011-10 - 2016-04

Studying and working experience

Studied and worked Java PHP MSSQL ...
Studied and worked
  • Studied Business Informatics beginning 2011 and started as a working student for Mitel and later IBM, developing in-house systems like CRM software
  • Build interfaces and APIs to corporate systems like SAP, SalesForce
  • Offered full-time contract after studies, declined to found an own business
Java PHP MSSQL MySQL
Mitel & IBM

Aus- und Weiterbildung

Aus- und Weiterbildung

  • Master of Science Business Informatics
  • Bachelor in Computer Science

Position

Position

  • CTO

Kompetenzen

Kompetenzen

Produkte / Standards / Erfahrungen / Methoden

Profile

I am a software engineer by heart and I love to code every day ? I kind of feel uncomfortable when there is no VS Code or at least a Terminal opened on my screen. I dont stick to a specific language or specific frameworks, but I feel enthusiastic for Javascript and Python.


Achievements

  • Bachelor in Computer Science
  • Foundet [Company name on request] in 2016
  • Managed to form a small but efficient engineering team and established an agile development workflow at (on request)

Short Summary

  • 12 years of experience working in developer teams of all sizes, e.g. Mitel, IBM, About You, Edeka, Bayer, SinnerSchrader
  • Proficient in Javascript, Typescript, Node.js, Docker, AWS, React
  • Lecturer for Machine Learning & Software Engineering
  • Experience building and deploying production AWS infrastructure via infrastructure as code, e.g. AWS CDK, Terraform
  • AWS user since 2016, experience in many core AWS services (EC2, EB, ECR + ECS, CloudFormation, RDS, Lambda, API Gateway, Systems Manager, CodeCommit, CodeBuild, CodeDeploy)
  • Experience as technical lead in multiple developer teams, building a strong SCRUM workflow, driving decisions, encouraging growth and optimization of development processes


Super Strong Skills in:

  • Thinking code full-stack, from DevOps to Frontend
  • Automation in every range from local tooling (linting, formatting, commit-hooks) to code build in CI environments to multi-environment deployments to completely autogenerated APIs
  • Work with any kind of data access like databases, REST APIs, GraphQL
  • Creating, maintaining and leveraging clean & clear development processes like gitflow, SCRUM, release processes and versioning
  • Containerization with Docker

Things I am working on to Improve

  • Wrapping my head around CSS animations
  • Building more experience in Cloudflare Workers and V8 Engine
  • Sharping technical UX skills, e.g. Optimistic UI, web streaming
  • Trying out test-driven development
  • Give back to the Open Source community, open more relevant GitHub issues, do more Open Source contributions

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