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Hussain Hanif

@hussainhanif

Principal Software Engineer and Full-Stack Developer with 8+ years of experience building scalable web applications and leading technical teams. Stron

Pakistan

Message

What I'm looking for

I build SaaS products, MVPs, and scalable web applications using React, Next.js, Node.js, Laravel, and Python. With 8+ years in software engineering and technical leadership, I work across frontend, backend, APIs, databases, cloud, and AI/ML integrations. I also improve performance, architecture, and reliability in existing products.

I build SaaS products and MVPs that ship. I also fix the ones that didn't.

11 years in, most of my work falls into two categories. Some clients have validated an idea and need someone to build the whole thing: frontend, backend, database, deployment, Stripe, auth. Others have a Laravel or Node codebase that's been through three developers and now nobody wants to touch it.

What I build

Full-stack apps in React and Next.js with Laravel 10/11 or Node (Express, NestJS). Multi-tenant SaaS with RBAC, Stripe subscriptions and metered billing, admin dashboards. PostgreSQL and MySQL schema design and query optimization. REST and GraphQL APIs, OAuth 2.0, webhooks, queues, caching.

Manifest V3 Chrome extensions: service workers, content scripts, cross-context messaging. Two AI-powered extensions shipped and live on the Chrome Web Store, including store review and post-launch maintenance.

OpenAI, Claude, and Gemini integrations into existing products. RAG pipelines, vector search, structured output validation.

How I work

If your scope is bigger than your budget, you'll hear it from me in week one. I recommend the simpler approach when there is one, even when it bills fewer hours. You get code, deployment, and a README that lets the next person pick it up.

Message me with what you're building. I'll ask a few specific questions, then tell you honestly whether I am a fit.

Experience

Work history, roles, and key accomplishments

Current

Independent Senior MERN Engineer

Current

Self Employed

Apr 2024 - Present (2 years 6 months)

Independent contract engineering for product companies, agencies and small businesses in the US, UK and Australia, through direct contracts and Upwork (Top Rated, 100% Job Success). Owns each engagement from discovery to handoff: scoping, estimates, delivery, client communication and documentation, often across several clients at once.

NodeJS MongoDB APIs PostgreSQL Authentication React Deployment Dashboarding MERN Stack

Senior Software Architect (MERN and Node.js)

Tinktanc

Aug 2024 - Mar 2025 (7 months)

Architected scalable and secure applications with React, Node.js, Express and SQL and NoSQL databases. Led and mentored developers and enforced coding standards through pull request reviews. Optimized APIs and database access for performance, scalability and security.

SQL NodeJS NoSQL React Team Leadership ExpressJS

Senior MERN Full Stack Lead

Renesis Tech

Apr 2023 - Mar 2024 (11 months)

Architected and led EvalPro, a compliance verification platform built on MongoDB, Express, React and Node.js, from proof of concept to production. Designed the system architecture, API layer and data model for performance and scale. Directed a multidisciplinary team across the full lifecycle and aligned delivery with stakeholder requirements. Ran performance tuning and debugging to keep the product fast and stable in production.

NodeJS MongoDB React Optimization Platform Engineering ExpressJS

Senior Full Stack Developer (React and Vue)

Shayan Solutions

Jan 2022 - Apr 2023 (1 year 3 months)

Built and maintained React and Vue applications on top of PHP and Node.js back ends for remote clients. Cut latency by 40% through caching, load balancing and database optimization. Ran code reviews and coached junior developers; managed scope and timelines with Agile.

PHP NodeJS React JavaScript Mentorship Performance Optimization Vue.Js