20.10.2026 aktualisiert
Premiumkunde
100 % verfügbarSoftwareentwickler Full-stack, Softwareentwickler Front-end
Berlin, Deutschland
Nur Remote
InformatikingenieurÜber mich
Built and operate a Kubernetes cluster on real hardware running 10+ services, ingress, secrets, monitoring and remote access + 15 years shipping production web applications. I'm a full-stack software engineer focused on React/TypeScript products, who also builds and runs his own infrastructure.
Skills
VitestHTML5LinuxPostgreSQLNode.jsNext.jsGitKubernetesPlaywrightFull Stack EntwicklungFront EndRestful ApisDocker
- Frontend: React, Next.js, TypeScript, TailwindCSS, Playwright, Cypress
- Containers: Docker, Kubernetes (k3s), Traefik ingress
- CI/CD: GitHub Actions, GitLab CI, GitFlow, code reviews
- Observability: Prometheus, node-exporter, Grafana
- Linux and automation: Debian, Bash, SSH, DNS, VPN (Tailscale)
- Databases: PostgreSQL, Supabase, MongoDB
Erfahrung
Berufserfahrungmehr als 10 Jahre
Freelancer seit2014
Sprachen
DeutschgutEnglischverhandlungssicherFranzösischverhandlungssicherSpanischMuttersprache
Projekthistorie
- Building VISIAN Image Annotator, a web-based medical imaging annotation platform for clinical studies — annotators view, label and manage DICOM images with collaborative workflows, assignment tracking and status management
- Developed major parts of the front-end: React + TypeScript with complex state management (MobX, react-query), built to handle large medical image datasets in the browser
- Set up end-to-end testing with Playwright, protecting releases against regressions in a domain where data integrity matters (clinical studies)
- Work closely with the client engineering team in an ongoing, long-term collaboration
- Built the main management tool shipped with SoftIron's clustered storage servers — a React dashboard giving customers real-time visibility into the health and state of their storage clusters (part of the product the company sold, used by external customers running their own clusters)
- Developed internal tools across departments: a web-based asset management system for marketing, and a cross-platform desktop app (React + Tauri) automating manufacturing workflows and label printing
- Co-created the company's internal design system and icon library, standardizing UI and reducing rework across product teams
- Built e2e test coverage with Cypress for the flagship product, raising release confidence for customer-facing releases
- Worked daily in a GitFlow + GitLab CI/CD workflow with strict MR reviews; containerized dev/test environments with Docker
Development of commercial websites and web applications for different customers in a digital agency.