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People & Principles
STACK · STANDARDS · RULESThe mezzanine keeps the house rules: SOLID, Clean Code and TDD as daily practice, I/O at the edges, and knowledge that flows across the team.
Skill groups
Backend
- Java 21/25
- Spring Boot
- Python 3.13
- FastAPI
- Kafka
Data
- Oracle
- Redis
- pgvector
AI
- RAG + evals in CI
- MCP
- Ollama / llama.cpp
Quality
- Testcontainers
- GitHub Actions
- mypy strict
- TDD
Leadership
- team coordination
- code review culture
- mentoring
- conflict resolution
House rules
Four rules, posted on the mezzanine wall. They are short because enforcing them is the long part.
SOLID, Clean Code and TDD as daily practice.
Tell, Don’t Ask — immutability and semantic types when they model the domain.
I/O at the edges; pure, deterministic logic everywhere else.
Knowledge sharing and mentoring — the team improves together.