C#/.NET and Java applications, REST APIs and microservices, from business logic to containerized deployment.
A Next.js platform that organizes a research lab's programs, hypotheses, experiments and publications in a typed knowledge model. Publishing generates MDX files and a DuckDB index; CI runs type-checking, linting, tests and the build.
A self-hosted AI second brain on a private server: seven Docker Compose services (local LLMs with Ollama, Qdrant vector store, n8n workflows) wired to an Obsidian vault. Built on n8n's self-hosted AI starter kit.
A career-guidance platform that helps young people find their path through AI-based matching and gamified progression. Layered .NET back end (API, Core, Infrastructure, tests), Next.js front end.
A Java API gateway: each request goes through a chain of policies (API key, rate limit, JavaScript validation, Groovy transformation via JSR 223, routing) before reaching the backend service. Jenkins pipeline, Sonar analysis, Docker and Ansible deployment.
A three-layer full-stack application: ASP.NET Core 8 API (Entity Framework Core, PostgreSQL), Identity/JWT authentication with roles, React client. API versioning, health checks, rate limiting, xUnit tests and GitHub Actions CI.
A multi-tenant analytics platform, local or cloud: Arrow Flight ingestion, hybrid DuckDB and Iceberg storage (MinIO/S3), dbt transformations and Trino queries.
Mathematical modelling and decision support tools, environment and health focus
Methods track