Applied engineering research
Whitepapers and technical guides published in full — schemas, working configuration, measured trade-offs, and the failure modes each decision is designed against.
- Whitepaper22 min read
Cloud observability: instrument everything, keep almost none of it
The three questions an on-call engineer actually needs answered, the signals that answer them, and why your bill is set by cardinality and retention rather than traffic. With Collector config, burn-rate alerts, and list prices from six platforms.
- Observability
- OpenTelemetry
- Cost control
- SLOs
- Whitepaper17 min read
Multi-tenant foundations: the work before the feature work
Tenancy model, row-level isolation, SSO and RBAC, metering, and an audit log that survives examination — with the migrations, the connection-pool trap that defeats RLS, and the test that tries to leak.
- Multi-tenancy
- PostgreSQL
- RBAC
- Audit
- Technical guide16 min read
A staged path to multi-region on AWS
Four stages, each removing one named failure mode, with the RTO and RPO each one actually buys. Most teams should stop at stage two — here is how to tell whether you are one of them.
- AWS
- Resilience
- Terraform
- Aurora
- Whitepaper18 min read
Choosing a RAG architecture for enterprise knowledge
Chunking, hybrid retrieval, reranking, and the evaluation harness that decides whether any of it worked. With the pgvector schema and the CI gate we actually ship.
- RAG
- pgvector
- Evaluation
- Retrieval