I build and maintain OpenCRVS — the open-source civil registration platform 7 governments use to record births, deaths, and legal identity. Bugs in this domain carry legal consequences, so my work centers on data integrity, fault tolerance, and compliance-grade security — software that ships offline-first to regions where connectivity fails. I lead an 8-engineer team and ship weekly releases to registries serving millions of citizens.

• Led a production MongoDB → PostgreSQL migration for a national-scale citizen registry — unified querying, eliminated cross-store inconsistencies
• Made microservices 5x–10x faster via query optimization, caching, and data-model refactoring — a prerequisite for low-connectivity deployments
• Cut core registration flows from a 15-second freeze to <500ms via React profiling and memoization
• Replaced hardcoded role permissions with a declarative scope-based authorization system used across the platform

pass.android — Android client for pass(1) with a layered key chain: Ed25519 SSH for Git sync, Keystore-wrapped GPG blob, biometric-gated decryption, and dual autofill (AutofillService + Credential Manager). Kotlin · Jetpack Compose · JGit · PGPainless · Android Keystore

Nametag — upstream contributor to an open-source personal relationship manager: person-centric network-graph visualization with bidirectional edge highlighting. Next.js · PostgreSQL · Prisma · Tailwind CSS · D3.js

Languages: TypeScript, Kotlin Frontend: React, Next.js, Redux, TanStack Query, Apollo GraphQL Backend: Node.js, GraphQL, PostgreSQL, tRPC, Redis, Elasticsearch Testing: Jest, React Testing Library, Vitest, Playwright DevOps: Docker, Kubernetes, GitHub Actions, Sentry

LinkedIn · haidertameem@gmail.com

"Zangetsu" (Slaying Moon) — the sword from Bleach.

He/him