Coding Cloud Architect supporting both Application Developers, Engineers, and Business Owners across Europe to bring their mission critical services to the right cloud solution.

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Design and realization of the company?s central Managed Kubernetes platform (self-hosted CaaS) hosting over 100 application teams across Europe. I had the pleasure to architect and lead the entire implementation. My efforts resulted in a high optimization of running costs by harmonizing organically grown decentralized clusters and enhancing service performance and assurance (security, HA, DR, and business continuity (RTO/RPO)).

As a follow up I was asked to design and realize in-depth service observability and control comprising log- metrics-, and cost- management, alerting, and security monitoring. Delivery included extensive documentation and training of administrators and 3rd party operators.

Tech stack

Kubernetes (Calico/NetworkPolicies, Kubenet, Admission Control/OPA Gatekeeper/Rego, AAD and cloud integration), Azure (AKS, VMSS, ACR, AppGW/AGIC, Vault, Storage, Functions, API Management, CosmosDB, Networking, Security), GitLab (incl CI), JFrog Artifactory, Harbor, MinIO, Aviatrix, terraform/terragrunt, helm, kustomize, python, nodeJS, nginx, MariaDB/MySQL, PostgreSQL, MongDB, RabbitMQ.

Observability: Azure Monitoring, Diagnostics, and Log Analytics. Prometheus, Grafana, AlertManager, fluent-bit/fluentd, Splunk, kured, kubecost, Kuberhealthy, velero/restic, AppDynamics, AquaSec/starboard, Kafka.Lead Cloud Architect - Realization of the multi-tenant K8S platform

Leading International Automotive, Böblingen, Germany (via Futurice)

Migration to new Cloud platform

Total redesign of an organically grown Jenkins CICD pipeline based on a holistic library and IaC approach. The fully automated workflow enabled application development teams to forget about Jenkins administration, yet having full control over their application build and deployment.

Design and migration of the multi-location OpenShift environment to a native onsite multi-cluster Kubernetes environment. The advanced implementation of resource policies enabled better cost control and simplification/elimination of the cloud administration.

Role(s):

• DevOps Architect
• Business Developer
• IT Solution Architect
• Product Owner (Scrum) (Telefonica GmbH)
• Solution Owner Mobile and Transport (Swisscom Schweiz AG)
• Project Manager (P&T Luxembourg)
• Solution Integrator
• Authorized Trainer (IBM Premium Partner)

Senior Consultant – DevOps Architect

Within serima I had the responsibility to design and implement a DevOps CICD best practice. This concept is now used for the delivery of solutions in all new projects. Every solution has its own ready-to-pull docker development environment, including unit testing capabilities. The “DevOps CICD Pipeline” itself (Jenkins, Nexus, GitLab) prepares the docker images ready for integration testing and deployment. In all cases using Infrastructure as Code (IaC) at its core.

Deployment methods encompass:

• manually or on-prem Docker environment
• AWS Cloud (ECS, EC2) using Packer, Terraform, and Ansible
• Kubernetes (bare-metal, EKS, or EC2)

Senior Consultant – Business Developer Cloud Monitoring

Our team was tasked with delivering future business opportunities to our CEO. Part of the team was responsible for assessing market reports and conducting vendor communication. My responsibilities mainly targeted setting up proof of concepts of cloud solutions, which in turn directly enabled serima’s major client to move some applications to the cloud already.

Activities include:

• Market analysis
• Feasibility study (Professional Services or SaaS)
• Setting up Kubernetes, AWS (EKS, ECS, EC2)
• Setting up ELK Stack / Elastic Search, Splunk, Prometheus, Grafana

Senior Consultant – Service Management and Correlation (Root Cause Analysis)

• As Senior Consultant I led complex projects in the larger Service Provider and Telco customers. Main focus area’s encompassed RCA correlation and Service Management architectures for both Mobile (LTE, UMTS, GPRS), IP, and Transport (SDH, WDM). The designs were mainly based on the IBM Tivoli Netcool framework (OMNIbus, Impact, TBSM, ITNM), with (open source) additions like edgeSuite, Pentaho PDI Kettle, and NodeJS solutions.
• Activities include:
  • Support European customers (mainly Switzerland, Germany, The Netherlands, Sweden, Luxembourg, and Poland) to setup and/or enhance their Service Assurance environment to the constant changing managed services demand.
  • Setup and/or enhance the supporting ITIL processes as Change Management, Release and Deployment Management, Incident and Problem Management, and independent Test Management.
  • Leading responsibilities in project communication and planning, design, and implementation of the agreed upon solution using agile project management (Scrum).
  • Demo sessions and proof of concept (POC) in a controlled technical lab or within the customer’s environment.

Trainer
Facilitate formal IBM training (IBM Premium Partner) or tailored workshops, both on customer premises and formal training sites.

Job description

As a result of constant growth of serima Consulting in both Germany and Switzerland
management has decided to enhance operations to Eastern Europe. As an extension of
Western Europe business, I was tasked with:

• Representing the company in Poland and Eastern Europe.
• Relaying and implementing company policies shared by serima Consulting GmbH.

Serima management has decided to close the Polish office in March 2007 for reasons of:

• Different business and administration culture.
• Long lead time.
• Lack of finding skilled resources

Roles

1. OSS and Network Management Architect
2. Project Lead
3. Pre-sales Engineer
4. Partner Manager

Job description

• Assist and advise the customer on translating operational and organizational challenges into technical OSS and network management solutions. Responsible for the project planning, design, and implementation of the agreed upon solution.
• Setup of the network management (NMS) practice within the Dutch organization as practice leader.
• Support sales in a pre-sales phase as Subject Matter Expert in the OSS and network management discipline.
• Assist the customer in justifying an ICT investment (QBA).
• Assessment of the customer NMS solution, gap analysis, and product selection.
• Facilitate training, demo sessions, and proof of concept (POC) for the customer and internal personnel.
• Keep track of the ICT market developments.

Partner Manager

Manage the partner relations with regard to network and security management.

Roles

1. Network Management Architect
2. Project Lead
3. Pre-sales Consultant
4. Trainer

Job description

• Assist and advise the customer in the Nordic area on translating operational and organizational challenges into technical network management solutions.
• Build and enhance Network and Service Operations Centers (NOC/SOC), including design and implementation of the network management and OSS/service management solutions/technology.
• Support the network management (NMS) practice within the Dutch organization.
• Support sales in a pre-sales phase as Subject Matter Expert in the asset, network, and security management discipline.
• Assessment of the customer NMS solution, gap analysis, and product selection.
• Facilitate proof of concept (POC) for the customer and internal personnel.
• Keep track of the ICT market developments.

Trainer
Technology training of Lucent products and solutions out of the Lucent training center. Methodology training among Time Management, Presentation Skills, and Technical Writing.

Roles

1. Technical Product Manager
2. Information Technology Trainer
3. Technical (2nd line) Support Engineer

Job description

Technical Product Manager

• Responsible for the evaluation of new products and creation of new solution offerings in collaboration with Commercial Product Management.

Information Technology Trainer

• Write, promote, and offer formal trainings in the area of IT and Network Management.

Technical Support Engineer

• Technical support of 1st line Field Engineers.
• Conflict handling and representation of the support department.
• Presales support of Sales Consultants and Commercial Product Managers (CPM).
• Perform presales POC in the customer environment.
• Maintain an in-depth knowledge of the latest technologies and strategies (focus area).
• Transfer knowledge to the organization.

Roles

1. Information Analyst
2. Field Engineer

Job description

• Nationwide responsibility for building and maintaining the Unisource public data communication network and services.
• As field engineer resolve network incidents and problems on Unisource POP sites and customer sites.