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Junaid Aziz

@junaidaziz

Senior Full Stack Engineer with 10+ years building scalable web applications using React, Next.js, Node.js, TypeScript, AWS, and AI.

Pakistan

Message

What I'm looking for

I'm looking for a Senior or Lead Full Stack role where I can build scalable products and contribute to AI-powered solutions. I thrive in remote-first teams with a strong engineering culture, challenging technical problems, and the autonomy to make architectural decisions. I'm especially interested in backend systems, cloud, and AI/LLM integration.

I'm a Senior Full Stack Engineer with 11+ years of experience building scalable web applications using Node.js, TypeScript, React/Next.js, and AWS Serverless. I currently work as an AI Training Engineer on Mercor, evaluating AI-generated code and helping improve the quality of frontier language models.

I build production-ready applications end to end, including RAG pipelines, OpenAI and Claude integrations, function calling, and agent workflows, delivering systems that have improved response times by 40% and reduced production incidents by 25%. I also founded Codemind, a code review SaaS that streamlines technical reviews for correctness, performance, security, and maintainability.

Previously at Modus Create, I led the development of Audi Business Innovation's React operator dashboard backed by a Node.js/NestJS serverless architecture, reducing API latency by 25%, increasing throughput by 60%, and achieving 99.9% uptime. I've also integrated OpenAI and Claude into production platforms while delivering reliable, scalable systems using CI/CD, automated testing, and event-driven architectures.

Experience

Work history, roles, and key accomplishments

Current

Senior Full-Stack Engineer

Current

Modus Create Inc

Dec 2022 - Present (3 years 8 months)

Led full-stack architecture for Audi Business Innovation's React dashboard and NestJS serverless backend. Tackled high API latency by redesigning Lambda patterns and caching, cutting latency 25%, reducing bugs 25%, and lifting uptime to 99.9%. Integrated OpenAI and Claude APIs with streaming and function calling, improving response times by 40%.

React Next.js NestJS AWS Serverless SQS SNS Event Driven Architecture OpenAI And Claude Integrations TypeScript Serverless Architecture Serverless React NextJS NodeJS Lambda Amazon SQS SNS DynamoDB AWS AI Tools

Senior Full-Stack Engineer

X-Team

May 2020 - Jan 2022 (1 year 8 months)

Faced with scaling a 20K+ monthly-user platform plagued by client sync delays, redesigned the architecture from polling to React + WebSocket, cutting sync delays 40%. Improved backend reliability by 15% through Redis caching and maintaining 95%+ test coverage across REST/GraphQL APIs.

React WebSockets NestJS GraphQL REST APIs Redis PostgreSQL MongoDB Test Coverage TypeScript Next.js Strapi Knex CI CD Pipelines Redis Cloud API Development

Tech Lead & Full-Stack Engineer

Kwanso

Apr 2016 - Feb 2020 (3 years 10 months)

Inherited a team with growing tech debt and inconsistent engineering standards. Mentored 10+ engineers through structured code reviews and best practices, reducing tech debt 40%. Architected and scaled a full-stack SaaS from scratch, cutting deployment time 30% and boosting backend throughput 20% via Docker, Kubernetes, and CI/CD automation.

TypeScript React Vue.Js Docker Kubernetes CI CD MySQL MongoDB SQL Leadership Team Leadership Typescript Nodejs Next.js Angular Ruby on Rails Serverless Serverless Architecture

Software Engineer

Pikessoft

Jan 2014 - Mar 2016 (2 years 2 months)

Contributed to 6+ projects across 3 clients using PHP, Rails, Laravel, and WordPress stacks, navigating varied codebases with limited documentation. Delivered AJAX-driven front-end interactions and solid backend logic. Took Review.ly from early-stage build to release, owning backend, database design, and front-end end to end.

PHP JavaScript React NodeJS TypeScript Ruby on Rails CoffeeScript AJAX

AI Training Engineer

Mercor

Feb 2026 - Mar 2026 (1 month)

Evaluate frontier LLM code for clients including OpenAI and Anthropic by writing and reviewing complex Python, JavaScript/TypeScript, and Go solutions. Produce structured RLHF feedback via comparative failure-mode analysis, trajectory tagging, and correctness, efficiency, and security assessments across 100+ evaluations.

Trajectory Record Tagging Structured Feedback OpenAI API Anthropic Claude API Correctness And Security Review