About Martin
German
Native or bilingual
English
Fluent
Experience
- Fintech StartupCloud Platform DevelopmentBANKING AND INSURANCEOctober 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. DockerDesigned 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.
- FreelancerSecurity Operations SupportBANKING AND INSURANCEJanuary 2023 - Today (3 years and 5 months)Hannover, GermanyEnhanced security operations using a modern DevSecOpsapproach. Integrated GitLab for version control and CI/CD,Kubernetes for container orchestration, and Keycloak for IAM withOpenID. Implemented automated deployments, security scans, andthreat monitoring.Kubernetes · IaC · GitLab · VAIT · Keycloak · OAuth · Automation · Security· ArgoCD · IAM
- FreelancerCloud Migration EngineeringBANKING AND INSURANCEJune 2022 - June 2024 (2 years)Hamburg, GermanyMigrated existing Java applications to a cloud-native Kubernetesinfrastructure. Responsible for CI/CD processes with GitLab andHelm on on-premise Kubernetes. Implemented compliancerequirements for authentication, logging, and monitoring usingKeycloak, Vault, and Elastic.JEE · IaC · Kubernetes · Oracle · GitLab · VAIT · Elastic · Automation ·Maven · Gradle · ArgoCD · IAM
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Education
- Diplom Informatiker (BA)Berufsakademie2003Diplom Informatiker (BA)
- Microsoft Certified: Security, Compliance, and Identity Fundamentals2023Microsoft Certified: Security, Compliance, and Identity Fundamentals