Available for Remote · $60–80/hr · Immediate Start

Muhammad Faiz

Full-Stack JavaScript Engineer • Karachi, Pakistan

Most apps break in production. I build ones that don't.

4 years shipping production SaaS, real-time systems, and mobile apps — React · Next.js · Node.js · TypeScript

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Selected Work

Projects

Saddle Battles

Real-time horse racing betting platform. Built WebSocket betting rooms, live settlement calculations, multilingual support, and admin audit logging for high-traffic live sessions.

⚡ 1,000+ concurrent users per live session

Node.jsWebSocketsMongoDBReact.js

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Pool Nest

Multi-vendor SaaS platform with admin dashboard for scheduling, payouts, and role-based access control. Multi-tenant DB architecture with fast lookups across massive datasets.

⚡ 500,000+ records with fast query performance

React.jsNode.jsMongoDBRBAC

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Legacy Honored

QR code management system with generation, tracking, and analytics. Sub-100ms query lookups across millions of records with granular RBAC and full audit trails.

⚡ Sub-100ms queries across millions of records

React.jsNode.jsMongoDB

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Tech Stack

Skills

Frontend

React.jsNext.jsReact NativeTypeScriptTailwind CSS

Backend

Node.jsExpress.jsGraphQLSocket.IOWebSockets

Databases & Storage

MongoDBPostgreSQLRedisSupabaseFirebase

AI & Integrations

OpenAI APILangChainRAGStripe

DevOps

DockerGitHub Actions

Career

Experience

Senior Frontend Developer

WorkSpin

Jan 2026 — PresentRemote Contract

Building Boarddd — a 50+ page agency SaaS platform.

→50+ page SaaS with real-time chat, invoicing, and Kanban boards using Next.js App Router + React 19
→Built drag-and-drop form builder with full type-safety in TypeScript
→Stripe billing integration with complex multi-tier subscription flows
→Real-time collaboration via Socket.IO with Tailwind CSS v4

Full-Stack Developer

Santex Products

Apr 2025 — PresentFull-Time

Built CERCLE — a multi-vendor Shopify platform.

→Multi-vendor platform: React Native mobile app, Remix.js merchant dashboard, Next.js admin panel
→Reduced API response time from 800ms → 300ms via Redis caching strategy
→JWT/OAuth2 with RBAC across three separate client surfaces

MERN Stack Developer

Avancera Solutions

Jun 2022 — Jun 2025Full-Time

Delivered 10 production projects over 3 years.

→Delivered 10 production projects across SaaS and e-commerce verticals
→Improved LCP from 3.8s → 1.6s through code-splitting and image optimization
→Cut CI/CD deployment from 2 hours → 10 minutes with streamlined GitHub Actions
→Mentored 3 junior developers and established PR review standards

Let's Work Together

Get In Touch

Available for remote contracts and freelance work. If you have a project that needs a senior full-stack engineer, let's talk.

muhammadfaizraza48@gmail.com

linkedin.com/in/muhammadfaizraza

github.com/muhammadfaizraza