Firebase audit
Security rules, Firestore data model, Functions, and the bill — reviewed line by line, returned as a prioritized findings report.
Build & hardening
Firestore schemas shaped by real query patterns, security rules shipped with test suites, Gen 2 Cloud Functions, App Check, and Auth flows.
Cost & performance
Read/write amplification found and fixed, denormalization decided pattern by pattern, budget alerting that catches regressions in days.
Scale-out & migration
Hot paths moved to Cloud Run, Cloud SQL, or BigQuery — or a full migration off Firebase — as incremental, verified cutovers.
Rules tested like code
Most Firebase incidents are security-rules mistakes. Every ruleset we touch gets an emulator test suite that proves the denials, running in CI.
Costs tied to causes
We map the invoice to the behaviors that generate it. Recommendations come with measured before/after numbers, not adjectives.
Hybrid over dogma
Firebase where it fits, purpose-built infrastructure where it does not. The honest answer is usually a boundary, not a rewrite.