I architect low-latency Fastify backends, horizontally partitioned PostgreSQL with Citus, and 60 FPS React Native applications — scaled to 100,000+ users while cutting infrastructure overhead by 35%.
# whoami Abdul Moiz — Lead Mobile & Backend Developer # cat skills.txt › Fastify · Node.js · PostgreSQL · Citus › React Native · TypeScript · Kafka › Docker · Linux · Redis · Supabase # cat experience.txt › 3+ years building production systems › 100k+ app downloads shipped › 42% API latency reduction › 35% infra cost savings # status Open to new roles

From mobile app to database — every layer talks to the next.
Architected the end-to-end cross-platform rewards ecosystem and led its distributed backend through 100,000+ active downloads.
Engineering high-throughput decoupled microservices across cloud and Linux VPS configurations for thousands of async operations daily.
Programmed custom native mobile wrappers and biometric hardware integrations across 5+ commercial pipelines.
Real systems. Real scale. Real outcomes.
High-Availability Global Connectivity Platform
Fastify (Node.js) · PostgreSQL · React Native · Linux Infrastructure · Real-Time Webhooks
Automated telecom resource orchestration handling high-volume instant webhooks and real-time data flow processing at scale.
Isolated background worker loops that parse live plan allocations and update consumer status counters dynamically, halving lookup processing loads.
Core Fastify API routes run under 100 ms p99 under concurrent load, validated through internal benchmarking.
Distributed Rewards Ecosystem — 100,000+ Active Downloads
React Native · PostgreSQL (Citus) · Fastify · Kafka · Redis · Docker
Architected the end-to-end cross-platform mobile ecosystem powering the Follow Pay rewards platform, now live on Google Play with over 100,000 active downloads.
Reduced baseline API latency by 42% through strategic caching layers, optimized routing, and horizontal PostgreSQL sharding with Citus.
Eliminated rendering drops across all target devices, delivering a consistent 60 FPS React Native interface under production load conditions.
Production-grade AI system with persistent memory and real-time contextual reasoning.
High-throughput async messaging backbone for decoupled microservices.
Self-driven study in distributed databases, Citus sharding, and performance optimization — no classroom required.
Ongoing study expanding into native Kotlin development and declarative automation tooling.

Available for lead engineering roles, contracts, and ambitious products that need to scale without burning budget.