Junaid Aziz
Junaid Aziz

Senior Full-Stack Engineer and Technical Lead

Open to offers · Member since 7 Sep 2026
Message
Location
Lahore, Pakistan
Desired salary
Confidential
Work preference
Remote Only / Full Time, Part Time, Contract, Freelance
Experience level
Lead

About

Professional summary

I am a Senior Full-Stack Engineer and Technical Lead with more than 11 years of experience building scalable SaaS products, enterprise platforms, and cloud-native applications. I specialize in end-to-end architecture and delivery across the JavaScript and TypeScript ecosystem.

I build modern web applications with Node.js, TypeScript, React, Next.js, and NestJS. My backend expertise includes REST and GraphQL APIs, distributed systems, event-driven architecture, WebSockets, and multi-tenant SaaS platforms.

I have deep hands-on experience with AWS serverless infrastructure, including Lambda, DynamoDB, API Gateway, SQS, SNS, EventBridge, ECS, and S3. I also work extensively with PostgreSQL, Redis, MongoDB, MySQL, and performance optimization across APIs and databases.

I lead distributed engineering teams, conduct architecture reviews, mentor engineers, establish API and infrastructure patterns, and improve engineering quality through CI/CD, automated testing, containerization, and secure authentication practices.

I also design and integrate production AI and LLM workflows, including RAG pipelines, embeddings, function calling, streaming, prompt engineering, and agentic systems using OpenAI, Anthropic Claude, pgvector, LangGraph, and Vercel AI SDK.

I am open to senior full-stack, staff-level, technical leadership, and AI-product engagements, with availability for remote work and substantial overlap with US Pacific Time.

Notice period: Immediately

Skills

57 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Team Lead & Senior Full-Stack Engineer Modus Create Inc.

I lead full-stack architecture and delivery for a distributed team of more than eight engineers supporting Audi Business Innovation GmbH. I deliver a React and Next.js operator dashboard backed by Node.js, NestJS, AWS Lambda, DynamoDB, SQS, and SNS, serving tens of thousands of API requests each month.

I reduced API latency by 25% and increased throughput by 60% through DynamoDB Streams, Redis caching, Lambda cold-start tuning, and event-driven workflows. I introduced Anthropic Claude and OpenAI integrations with function calling and streaming, led technical design reviews, improved CI/CD with GitHub Actions, and strengthened testing and authentication practices using Jest, Cypress, Supertest, Docker, Kubernetes, JWT, OAuth2, and RBAC.

Senior Full-Stack Engineer X-Team

I worked on X-Team's internal hiring portal, talent operations systems, and primary marketing website. I built real-time React and WebSocket infrastructure for an internal hiring resource portal serving more than 20,000 monthly users, reducing synchronization delays by 40% and removing polling bottlenecks.

I developed React and Redux applications connected to high-throughput REST and GraphQL APIs using Node.js, NestJS, PostgreSQL, MongoDB, and Redis. I owned PostgreSQL schema design and query optimization, improving database efficiency by 35%, while maintaining more than 95% test coverage with no critical production regressions.

Technical Lead & Senior Full-Stack Engineer Kwanso

I owned architecture, mentoring, and full-stack delivery across Node.js, Angular, React, and Vue.js platforms. I led and mentored more than ten engineers, conducted code reviews and architecture walkthroughs, and helped reduce technical debt by 40%.

I architected Unlayer, a drag-and-drop email and page builder SaaS, from the ground up. I also led development of Bimarker, a healthcare data platform with an Angular enterprise dashboard and NestJS API, improving deployment time by 30% and backend throughput by 20% through Docker, Kubernetes, automated CI/CD, and database improvements across MySQL and MongoDB.

Software Engineer Pikessoft

I worked on early-career full-stack web application development using PHP, Ruby on Rails, and JavaScript. My work included applications built with CodeIgniter, Laravel, and WordPress, including AJAX-driven frontend interactions.

I contributed to Review.ly, a review and ratings platform, supporting backend logic, database structure, and frontend functionality from early implementation through release.

AI Training Engineer Mercor

I evaluated and ranked complex code solutions for frontier-model RLHF across Python, JavaScript, TypeScript, and Go. I completed more than 100 tasks involving OpenCode, GitHub Copilot, and Claude.

I produced comparative failure-mode analyses focused on agentic workflows and tool-use behavior, helping assess the quality, reliability, and reasoning patterns of AI coding systems.

Education

Learning history

University of Education, Lahore

MS, Computer & Information Technology

Master of Science in Computer & Information Technology.

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