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N4ZEN/README.md
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  β•šβ•β•β•β•β•β• β•šβ•β•  β•šβ•β•  β•šβ•β•β•β•     β•šβ•β•β•šβ•β•β•β•β•β•β•β•šβ•β•β•β•β•β•β•β•šβ•β•  β•šβ•β•β•β•

Hi there, πŸ‘‹ I'm N4ZEN!

Coding cat gif

⚑ Senior Software Developer | Mobile Systems Engineer β€’ ML Engineer

More About Me

Engineering Focus

  • Build production-grade systems

  • Focus: React Native, backend, system architecture

  • Specialized in:

    • πŸ” Secure / zero-trust architectures
    • πŸ“Ά Offline-first sync systems
    • ⚑ Performance tooling & observability
    • 🧠 Applied ML / AI pipelines
    • βš™οΈ Native modules & mobile systems
  • Deliver full-stack products with: architecture β€’ persistence β€’ security β€’ deployment β€’ real-world tradeoffs

🌴 Currently living in the Maldives πŸ‡²πŸ‡»
πŸ’¬ Ping me about design, data analytics, and system architecture
🍡 I'm also a certified Tea Connoisseur - ask me for a perfect brew!

Engineering Domains


View more about my engineering domains

βš›οΈ Mobile Systems

I build production-grade React Native applications designed for real-world constraints: offline usage, degraded networks, and long-term maintainability.

  • Architecture: feature boundaries, typed data flows, navigation at scale
  • State & storage: durable local state, persistence strategies, sync readiness
  • Native integration: TurboModules, platform-specific performance paths
  • Delivery: release stability, crash resilience, upgrade strategy

React Native Β· Expo Β· TypeScript Β· Native Modules Β· Offline Storage Β· Navigation Β· App Security Β· Performance Profiling

πŸ›‘οΈ Secure Architecture

I design systems under zero-trust assumptions, where sensitive data is protected by default and trust boundaries are explicit.

  • Local encryption and secure storage models
  • Sync protocols that avoid implicit trust in backend or transport
  • Authentication flows (passkeys, recovery, device linking)
  • Threat modeling aligned with product UX

Encrypted Storage Β· Zero-Trust Apps Β· Secure Sync Β· Privacy UX Β· Threat Modeling Β· Auth Boundaries

⚑ Performance Engineering

I treat performance as a first-class product feature, not a post-release fix.

  • Instrumentation: startup (TTFF/TTI), render cost, thread utilization
  • Tracing: event timelines, spans, bottleneck identification
  • Benchmarking: reproducible tests for regressions
  • Tooling: SDKs and dashboards to make performance visible

React Native Performance Β· SDK Design Β· Tracing Β· Render Metrics Β· Startup Time Β· Image Benchmarks

πŸ€– ML / AI Systems

I build product-facing ML pipelines where imperfect data must still produce usable outcomes.

  • OCR pipelines with preprocessing + normalization
  • Structured extraction and confidence scoring
  • Human-in-the-loop review workflows
  • Dataset evaluation and iteration tooling

OCR Β· Document Intelligence Β· Image Processing Β· Python Β· Pandas Β· scikit-learn Β· ML Pipelines

🐳 Backend Infrastructure

I build backend systems that support mobile products cleanly and predictably.

  • Typed APIs and relational data modeling
  • Sync-aware backend design (conflicts, revisions, auditability)
  • Background jobs and operational workflows
  • Containerized deployment and service orchestration

Fastify Β· Node.js Β· Prisma Β· Postgres Β· Docker Β· REST APIs Β· Background Jobs Β· CI/CD


My Tech Stack

βš™οΈ Core Stack

React Native TypeScript Fastify PostgreSQL Prisma Expo ML_Kit

Open full stack details

🧠 Favorite Languages

TypeScript JavaScript Python Kotlin Swift C++ Go PHP R


πŸ“± Mobile / React Native

React Native Expo Hermes React Navigation Reanimated Gesture Handler Vision Camera Native Modules TurboModules JSI JNI


🌐 Frontend / Web

React Next.js Tailwind CSS Framer Motion GSAP Bootstrap SASS Vue.js


🌐 Backend / APIs

Node.js Fastify Express Laravel REST APIs JWT Prisma


πŸ—„οΈ Databases / Storage

PostgreSQL SQLite MongoDB Firebase MSSQL MMKV Offline Storage


πŸ“· AI / ML / OCR

ML Kit OCR Document Intelligence Image Processing OpenCV ONNX scikit-learn Pandas NumPy SciPy ML Pipelines


⚑ Performance / Observability

PerfKit React Native Performance Frame Monitoring JS Event Loop TTI / TTFF Network Tracing Waterfall Profiling Metrics p95 Image Benchmarks


πŸš€ Featured Work

πŸ” Locker β€” Zero-Trust Vault

Privacy-first encrypted vault disguised as a calculator.

  • Local-first encrypted storage
  • Zero-trust sync architecture
  • Passkey + recovery flows
  • Mobile threat modeling

πŸ”— Repo β€’ 🎬 Demo πŸ“² Releases

πŸ” Zero-trust β€’ 🧬 Recovery keys β€’ πŸ“± Cross-device

⚑ PerfKit / Pulse β€” Performance SDK

React Native performance instrumentation toolkit.

  • Startup performance tracking
  • JS + UI thread monitoring
  • Timeline traces
  • Exportable sessions

πŸ”— Repo β€’ 🎬 Demo πŸ“² Releases

⚑ TTFF/TTI β€’ πŸ“Š p95 traces β€’ 🧡 JS/UI jank

πŸ“¦ Velo β€” Offline-First Sync Engine

Jira-like project management with full offline capability.

  • Queue-based sync engine
  • Conflict-aware resolution
  • Local-first architecture
  • Fastify + Prisma backend

πŸ”— Repo β€’ 🎬 Demo πŸ“² Releases

πŸ“Ά Offline-first β€’ πŸ” Delta sync β€’ βš”οΈ Conflict-aware

🧠 Doc.I_ β€” Document Intelligence

OCR + extraction + evaluation tooling for mobile.

  • ML Kit OCR pipelines
  • Image preprocessing
  • Structured extraction
  • Dataset evaluation tools

πŸ”— Repo β€’ 🎬 Demo πŸ“² Releases

🧠 OCR pipeline β€’ πŸ“„ Extraction β€’ πŸ“Š Eval tools

🧩 More Systems

πŸ§ͺ Orkestron β€” Scheduler / DevOps Console

Operational control surface for jobs, retries, and orchestration

⏱ Scheduled jobs β€’ πŸ” Retries β€’ πŸ“Š Observability

πŸ”— Repo β€’ 🎬 Demo πŸ“² Releases


🧬 PixelBench β€” Image Compression Benchmark

React Native benchmark for image compression performance

πŸ“‰ Compression β€’ ⏱ Runtime β€’ 🧠 Memory profiling

πŸ”— Repo β€’ 🎬 Demo πŸ“² Releases



GitHub Activity

N4ZEN GitHub streak

Links


Building secure mobile systems, performance tools, and ML-powered product infrastructure from the Maldives.

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