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Engineering Focus

High-load systems

React Native apps

Type-safe architecture

APR102026

Available for work

SirajAbdul Raheem

Senior Software Developer / Mobile App Developer / System Architect

Senior Full Stack Developer with 4.7 years of progressive experience in scalable web and mobile products, modern architecture, and high-performance delivery.

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Skills

Building resilient web products that stay fast under real-world load.

I specialize in MERN/PERN ecosystems with deep focus on microservices, real-time systems, and cloud-native operations.

I enjoy modernizing legacy systems, strengthening type safety, and leading engineering execution from architecture to production.

Location

Islamabad, Pakistan

Collaboration

Remote / Hybrid / On-site

What I Optimize For

  • High-load resilience
  • Type-safe execution
  • Scalable architecture

Expertise

Engineering capability map built for modern product teams.

Each domain and competency is fully admin-driven. Add, edit, and tune depth without touching code.

Average Depth

Domains

Total Skills

  • 01 Backend Development
  • 02 Frontend Development
  • 03 Mobile Development
  • 04 Database Management
  • 05 Cloud & DevOps
  • 06 Architecture & Design Patterns

Backend Development

Service-layer engineering across APIs, distributed systems, messaging, and real-time infrastructure.

Domain

Track 01

  • Skill

    Node.js ecosystem: Express.js, Fastify, Nest.js, middleware, REST APIs

  • Skill

    Microservices architecture: RabbitMQ, service discovery, orchestration

  • Skill

    Real-time systems: Socket.IO synchronization and push notifications

  • Skill

    API engineering: OpenAPI/Swagger docs, auth strategy, rate limiting

Domain 01

Frontend Development

High-performance interfaces with modern React patterns, scalable state, and UI systems.

Domain

Track 02

  • Skill

    React 18+ and Next.js 14+ with App Router, RSC, optimized rendering

  • Skill

    State systems: Redux Toolkit, Context API, Zustand, TanStack Query

  • Skill

    UI/UX stack: Tailwind CSS, shadcn/ui, Material UI, accessibility

  • Skill

    Performance: code splitting, lazy loading, bundle tuning, Core Web Vitals

Domain 02

Mobile Development

Cross-platform mobile delivery with architecture discipline and reliable release operations.

Domain

Track 03

  • Skill

    React Native: CLI, React Navigation, Expo, and native modules

  • Skill

    Mobile architecture: clean patterns, offline-first flows, iOS/Android tuning

  • Skill

    Mobile DevOps: Play Store delivery, CI/CD pipelines, automated testing

Domain 03

Database Management

Data modeling and performance engineering across SQL, NoSQL, cache, and type-safe ORM layers.

Domain

Track 04

  • Skill

    PostgreSQL/MySQL: query optimization, stored procedures, migrations

  • Skill

    MongoDB: aggregation pipelines, indexing, and high-volume query tuning

  • Skill

    Redis: cache architecture, session strategy, and pub/sub messaging

  • Skill

    Prisma, Drizzle, Mongoose with type-safe schema and query workflows

Domain 04

Cloud & DevOps

Production operations from infrastructure provisioning to containerization and delivery automation.

Domain

Track 05

  • Skill

    AWS services: EC2, S3, RDS administration, and Vercel edge deployments

  • Skill

    Docker and Docker Compose for multi-service apps and image optimization

  • Skill

    GitHub Actions CI/CD with automated testing and release strategies

Domain 05

Architecture & Design Patterns

System-level decision making focused on scalability, security, and sustained performance.

Domain

Track 06

  • Skill

    System design: microservices vs monoliths, event sourcing, CQRS, DDD

  • Skill

    Security implementation: JWT, OAuth 2.0, RBAC, and hardening practices

  • Skill

    Performance engineering: load balancing, indexing, query and cache strategy

Domain 06

Experience

Systems built for real traffic, real complexity, and real business Pressure.

I engineer across backend services, frontend systems, and React Native mobile apps with production-first standards.

4.7+

Years

20+

Production Systems

Full Stack

Mobile + Web

Flagship Build

Real-time Marketplace Mobile Application : React Native + Node.js + MongoDB + Redis + Socket.IO with vendor dashboard and order tracking.

Contact

Let's build something remarkable together.

Share your project idea, hiring opportunity, or collaboration brief. I'll reply with a clear next step.

  • 1. Quick response with feasibility feedback.
  • 2. Architecture and delivery approach.
  • 3. Reliable execution from idea to production.