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Kenan E.KE

Kenan E.

🚀 Senior DevOps | Kubernetes & IaC Profi

€800/day
Köln, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Kenan

Hi, I'm Kenan, Senior DevOps Engineer & Cloud Infrastructure Architect, with over 10 years of experience.
I help companies build scalable, secure, and efficient cloud & on-premise infrastructures – from the initial idea to ongoing operation.

What I bring to your project:
- Kubernetes & Container Management: Building & operating complex multi-tenancy clusters (including in KRITIS environments).
- Infrastructure as Code: Automation with Terraform, OpenTofu & Ansible – for repeatable, stable deployments.
- CI/CD & GitOps: Building high-performance pipelines with GitLab CI/CD, Jenkins & ArgoCD.
- Security & Compliance: Integration of Keycloak, Vault & Kyverno for identity management and policy enforcement.
- Monitoring & Observability: Prometheus, Grafana, Loki – full transparency over your systems.

Project Results (Selection):
- Development of an Open-Source PaaS solution including ISO 27018 compliance, as well as DORA & NIS2 ready.
- Migration & Automation of Kubernetes infrastructures at PBM AG.
- Multi-tenancy cluster architecture & IaC at Next Kraftwerke (KRITIS environment).
- CI/CD optimization & container deployment in Azure at Utimaco.

What makes me special:
- Open-source enthusiast (GitHub: bitnik), always curious about new tools & technologies.
- Part of unbyte GmbH => a strong team stands behind me, whose expertise I can draw on at any time.
- I consciously use modern AI tools like GitHub Copilot & Claude as support and NOT as a replacement. The actual work, from architecture to code to testing, is in my hands. Copilot & Co help me to check ideas faster, compare variants, and review code. This allows me to reach my goal more efficiently, without compromising on quality or stability.

Deployment Options: Remote or hybrid | Immediately available | Flexible deployment throughout Germany
  • Turkish

    Native or bilingual

  • German

    Fluent

  • English

    Fluent

Can work on-site
Köln (up to 50km), Bonn (up to 50km), Düsseldorf (up to 50km), Hamburg (up to 50km), Berlin (up to 50km)

Experience

  • PBM AG
    Senior DevOps Engineer & Cloud Infrastructure Architect
    BANKING AND INSURANCE
    July 2024 - Today (1 year and 11 months)
    Cologne, NW, Germany
    Infrastructure as Code (IaC) & Automation:
    • Development & maintenance of IaC solutions with OpenTofu and Ansible for scalable infrastructures.
    • Automation of dependency management with Renovate for better software maintainability.
    • Programming of Bash scripts to support administration and automation processes.
    • Management & optimization of relational databases such as MariaDB. Kubernetes & Container Management:
    • Maintenance & updates of Kubernetes clusters to optimize stability and scalability.
    • Design, development & maintenance of Helm charts for deploying and managing containerized applications.
    • Maintenance & updates of Harbor and GitLab environments for managing Docker images. CI/CD & Deployment Automation:
    • Building & maintaining CI/CD pipelines with GitLab CI/CD for efficient deployments.
    • Implementation of logging & monitoring systems with Prometheus, Grafana & Loki. Security & Access Management:
    • Integration & management of Keycloak for user and access management.
    • Implementation of policy enforcement & network policies to improve security & compliance.
    Kubernetes Keycloak GitLab CI/CD Prometheus Terraform
  • Utimaco GmbH
    DevOps Engineer & CI/CD Pipeline Architect
    DIGITAL AND IT
    November 2023 - June 2024 (7 months)
    Cologne, NW, Germany
    Container & Cloud Platforms:
    • Development & maintenance of Helm charts for applications in Azure environments.
    • Building & managing Kubernetes clusters for orchestrating and scaling applications.
    • Monitoring of the Kubernetes platform, including Docker containers & PostgreSQL databases. CI/CD & Infrastructure Automation:
    • Implementation & maintenance of CI/CD pipelines in Azure with Azure DevOps.
    • Integration & management of HashiCorp Vault for secret management and Keycloak for user and access management.
    • Use of Packer (HashiCorp) for automating and standardizing the creation of reusable, configurable images for consistent deployments.
    • Implementation of IaC + maintenance & improvement.
    • Programming of Bash scripts.
    • Implementation of policy enforcement and network policies to improve security, compliance, and operational efficiency.
    Bash Kubernetes Azure DevOps GitLab CI/CD Keycloak
  • Next Kraftwerke GmbH
    Kubernetes Infrastructure & Cloud Platform Engineer
    ENERGY AND UTILITIES
    May 2021 - October 2023 (2 years and 5 months)
    Cologne, Germany
    Kubernetes & Cloud Platforms:
    • Building & managing multi-tenancy Kubernetes clusters on-premises, including Rancher (GitOps) & MetalLB as load balancer in a KRITIS environment under strict security and compliance requirements.
    • Architecture & implementation of IaC solutions using Terraform and Ansible. Automation & Testing:
    • Development & maintenance of CI/CD pipelines with GitLab & Jenkins as well as CD workflows with ArgoCD (GitOps).
    • Development of automated test frameworks with Ansible (Molecule) & Bash (Bats) and security checks with kube-bench.
    • Development and maintenance of APIs with FastAPI, including validation with Pydantic.
    • Use of Packer (HashiCorp) for creation and automation.
    Kubernetes FastAPI Terraform GitLab CI/CD Packer

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Education

  • Master of Science
    University of Stuttgart
    2014
    Master (M.Sc.)
  • Bachelor of Science
    Istanbul Technical University
    2011
    Bachelor (B.Sc)

Certifications

  • Linux Foundation Certified System Administrator (LFCS)
    Linux Foundation
    2022
    Linux Administration LVM Container Linux Virtualization Bash Cron

Skill set

Categories