I design secure, reusable infrastructure and automation—from AWS CDK and CI/CD to production platforms and practical AI systems.
- Software Engineer at OTTO in Hamburg, modernizing AWS infrastructure with AWS CDK and TypeScript
- Building reusable infrastructure patterns for Lambda, API Gateway, S3, DynamoDB and multi-environment delivery
- Integrating automated testing and deployment through GitLab CI/CD and GitHub Actions
- Applying Infrastructure as Code, IAM least privilege, observability and maintainable platform practices
- Developing practical AI infrastructure for local LLMs, voice agents, Whisper, LiveKit and GPU-accelerated inference
- Bringing extensive production experience across Linux, Azure, PowerShell, networking, backend systems and enterprise communications
- Delivered and supported more than 200 FreePBX and FusionPBX systems
Cloud & platform
AWS AWS CDK Lambda API Gateway DynamoDB S3 IAM CloudWatch Infrastructure as Code
DevOps & systems
TypeScript Python Linux Docker GitLab CI/CD GitHub Actions Jenkins Azure PowerShell
AI infrastructure
Local LLMs AI Agents Whisper LiveKit Speech Recognition GPU Inference Voice Agents
Backend & communications
Node.js Express Java PHP PostgreSQL MySQL FreeSWITCH FusionPBX Asterisk OpenSIPS
| Project | What it demonstrates |
|---|---|
| FusionPBX automation | Multi-tenant communications infrastructure, backend automation, backups, monitoring and production operations |
| Teams ↔ OpenSIPS integration | Enterprise SIP routing, Microsoft Teams Direct Routing, Linux networking and systems integration |
| Proxmox installer | Repeatable Linux infrastructure provisioning and defensive shell automation |
| Engineering portfolio | Case studies across cloud infrastructure, platform engineering, automation, AI systems and full-stack delivery |
I enjoy turning complex infrastructure into secure, observable and maintainable systems. My focus is not only making systems work, but making them repeatable, supportable and useful to the engineers who operate them next.