No 1-to-10 ratings and no invented proficiency bars. Every filled cell is a real system where it was used — no cell, no entry.
VAVirtual ArenaSOSofiaKPKinProofTETI Espec.ATAthenasINInternal
Systems architectureVA SO KP AT IN
Leading engineering teamsTE AT
LLM integrationVA SO KP IN
RAG and hybrid searchSO KP
Embeddings and pgvectorVA SO
Prompt engineeringVA SO KP IN
AI execution governanceVA IN
Data pipelines and ETLVA KP IN
Node.js and TypeScriptVA SO KP IN
PHPTE AT
PythonVA IN
Front-end (Next.js, React Native)VA TE
PostgreSQLVA SO KP IN
MySQL and MariaDBTE AT
REST APIs and integrationsVA SO KP TE AT IN
Docker and ComposeVA SO KP IN
Linux, Nginx and VPSVA SO TE IN
CI/CDVA AT IN
Observability and alertingVA TE IN
Incident responseVA TE AT IN
SEO and web performanceTE
Prompt and context safetySO IN
VA Virtual Arena AI · SO Sofia · KP KinProof · TE TI Especialistas · AT Athenas 3000 · IN internal platforms. Filled cell = used in production or in a delivered system.