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Martin ReinhardtMR

Martin Reinhardt

IT Architect & DevSecOps Expert

€1,120/day
Hamburg, DE
15+ years

Average response time: 1 hour

About Martin

IT Architect and DevSecOps expert
with 20+ years of experience
delivering secure, cloud-native
platforms across insurance, energy,
public sector, aviation, and logistics.
Specialized in IAM/authorization
architecture (Keycloak, OAuth2/OIDC,
Vault), Kubernetes-based platform
engineering, and CI/CD automation
with GitLab and GitHub Actions.
Freelancer operating under m13t.de
since 2022.
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Hamburg (up to 50km)

Experience

  • Fintech Startup
    Cloud Platform Development
    BANKING AND INSURANCE
    October 2025 - March 2026 (5 months)
    Supported DevSecOps GitLab Ultimate platform, Renovate automated dependency management, and HashiCorp Vault secrets handling. Delivered reusable pipeline templates to standardize workflows across teams. Resulted in reduced security vulnerabilities, improved deployment frequency, and a scalable, security-first development culture. Docker

    Designed and built the cloud infrastructure and backend services for a fintech startup on AWS. Led the architecture and deployment of a multi-service platform including three REST APIs, a secure search cluster, and a Next.js frontend with reverse proxy integration. Set up infrastructure as code covering networking, authentication, and automated database migrations across development and production environments. Delivered a multi-AZ OpenSearch cluster with encryption, Cognito-based auth, and role based access control, alongside an auditing pipeline with full test coverage. Resolved several complex infrastructure lifecycle challenges around deployment dependencies and identity configuration.
    DevOps IT Architecture
  • Freelancer
    Security Operations Support
    BANKING AND INSURANCE
    January 2023 - Today (3 years and 5 months)
    Hannover, Germany
    Enhanced security operations using a modern DevSecOps
    approach. Integrated GitLab for version control and CI/CD,
    Kubernetes for container orchestration, and Keycloak for IAM with
    OpenID. Implemented automated deployments, security scans, and
    threat monitoring.
    Kubernetes · IaC · GitLab · VAIT · Keycloak · OAuth · Automation · Security
    · ArgoCD · IAM
    Gitlab Kubernetes DevOps Keycloak IT-Security
  • Freelancer
    Cloud Migration Engineering
    BANKING AND INSURANCE
    June 2022 - June 2024 (2 years)
    Hamburg, Germany
    Migrated existing Java applications to a cloud-native Kubernetes
    infrastructure. Responsible for CI/CD processes with GitLab and
    Helm on on-premise Kubernetes. Implemented compliance
    requirements for authentication, logging, and monitoring using
    Keycloak, Vault, and Elastic.
    JEE · IaC · Kubernetes · Oracle · GitLab · VAIT · Elastic · Automation ·
    Maven · Gradle · ArgoCD · IAM
    IAM Cloud Platforms and Infrastructure CI/CD Management Gitlab Kubernetes

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Education

  • Diplom Informatiker (BA)
    Berufsakademie
    2003
    Diplom Informatiker (BA)
  • Microsoft Certified: Security, Compliance, and Identity Fundamentals
    2023
    Microsoft Certified: Security, Compliance, and Identity Fundamentals

Skill set

Categories