Open to opportunities

Hassan Afzal

@i_hassannn

Product-minded full-stack engineer with 4+ years building scalable apps with JavaScript, TypeScript, MERN, cloud, and modern AI tools.

Pakistan

Message

What I'm looking for

I love building meaningful products with TypeScript, React, Next.js, and NestJS, plus AWS/GCP. Lately, I’ve been using Claude and Codex to level up my speed and code quality. I thrive in teams that communicate clearly, take full ownership, and move fast. I’m looking for a high-growth role where I can build valuable tools and keep pushing my technical boundaries.

Software Engineer focused on building scalable web systems and AI-powered automations that improve speed, quality, and reliability. I design and ship end-to-end solutions across React/Next.js and Node.js (Express/Nest) using JavaScript/TypeScript, integrating databases and services with a strong emphasis on maintainability. My approach is simple: build clean foundations, automate the repeatable work, and add the right guardrails so delivery stays predictable. I’m especially interested in AI workflows that are production-ready — integrations, automation patterns, and controls that keep systems consistent and secure while accelerating development. Open to roles and collaborations where I can deliver high-impact features, streamline workflows, and help teams ship with confidence.

Experience

Work history, roles, and key accomplishments

Current

Generalist Expert

Current

Mercor

Mar 2026 - Present (1 month)

Generalists for AI Training Projects (often involving Reinforcement Learning from Human Feedback, or RLHF)

Annotations RLHF Methodologies Prompt Tuning Prompt Evaluation Prompt Engineering

Current

Senior Software Engineer

Current

Spiritual Data

Apr 2023 - Present (3 years)

Initiated and led development of a new product with the product manager, prioritizing features to achieve 30% faster API context and rollout. Orchestrated frontend development and deployment and resolved critical backend bugs to improve performance by 40% and system scalability by 25%.

React Next.js Express NestJS MongoDB TypeScript Redux toolkit Docker fastAPI React Native

Software Egineer

The Code Genesis

Aug 2022 - Jul 2023 (11 months)

- Advised design and strategy teams on technical capabilities, enabling more efficient project planning.
- Developed new endpoints for GraphQL and Rest APIs, and integrated third- party APIs, increasing system interoperability by 30%.
- Maintained and enhanced existing client facing applications.
- Engineered diverse applications using MERN stack resulting in a 15% increase in client satisfaction.