Junaid Aziz

Full-stack Engineer

Backend Engineer

Frontend Developer

Lahore, Punjab, PK

AI-Native

Angular

Amazon Web Services

Kubernetes

REST

Jest

Docker

Redux

JavaScript

GraphQL

Node.js

Next.js

MongoDB

MySQL

PostgreSQL

Tailwind CSS

React

CI/CD

Express.js

Vue.js

Slack

TypeScript

Python

Microservices

Neo4j

Redis

Jira

AWS Lambda

NestJS

Available for hire fromNegotiable

Senior Full-Stack Engineer | Team Lead | 12+ Years | React, Next.js, Node.js, TypeScript, AWS | LLM Integration

12+ years building production web platforms, currently leading a team of 8+ engineers at Modus Create on an Audi Group platform for car rendering and campaign imagery (10,000+ images a month). Full-stack across frontend and backend: React, Next.js and Vue.js interfaces on top of NestJS APIs, serverless and event-driven systems on AWS, performance tuning and CI/CD. AI work covers LLM features with the OpenAI and Anthropic SDKs, RAG with pgvector, image generation with ComfyUI, and code evaluation for frontier-model RLHF. Based in Lahore, Pakistan, with 6+ hours of daily overlap with US Pacific time. Available to start within a week.

Projects

Codemind: AI developer automation platform (own project, in development)

Own project, in development since Jan 2026. Node.js, NestJS, Next.js, React, OpenAI, pgvector, AWS Serverless. Building a RAG pipeline with OpenAI embeddings and pgvector search, a Next.js frontend, serverless orchestration, run monitoring, and automatic issue detection that flags bugs and readability, maintainability, and structure problems.See More

Midpage: AI legal research platform (freelance, Aug 2024 - Oct 2024)

Freelance, Aug 2024 - Oct 2024. Node.js, TypeScript, React, OpenAI SDK, Anthropic SDK, Vercel AI SDK, Vercel. Built the AI features: PDF parsing and text extraction, prompts and response handling with the OpenAI and Anthropic SDKs, and a React UI that shows answers and analysis. Added provider fallback, rate-limit handling, and cost limits, and deployed on Vercel.See More

Unlayer: drag-and-drop email builder (contract, via Kwanso)

Unlayer: drag-and-drop email builder (contract, via Kwanso). React, NestJS, PostgreSQL, GraphQL, RabbitMQ, Redis, Kubernetes • 30% backend throughput increase via GraphQL API design, streamlined PostgreSQL schemas, and an async RabbitMQ and Redis job pipeline driving a React drag-and-drop builder UI.See More

Work History

AI Training Engineer (part-time)

MercorContract EmployeeFeb 2026 - Apr 2026 • 3 mosEvaluated and ranked code in Python, JavaScript, TypeScript, and Go for frontier-model RLHF. Completed 100+ tasks with a 9.7 quality score and wrote up where agents failed on multi-step and tool-use tasks.

Team Lead & Senior Full-Stack Engineer

Modus Create Inc.Contract EmployeeWorking with Audi Business Innovation GmbH (Audi Group, Germany) on behalf of Modus Create, on a car rendering and media platform used by Audi markets worldwide (10,000+ images a month, plus hundreds of videos). Lead a distributed team of 8+ engineers in Agile/Scrum sprints: run design reviews, make architecture calls across frontend, backend and cloud, and set the API contracts and infrastructure patterns the team follows. Own the serverless backend and its IaC (NestJS, Lambda, DynamoDB, S3, SQS/SNS, CDK v2) for several Audi units. Moved the platform from a legacy desktop app to the cloud; rebuilt the frontend in Vue.js, then Next.js. Integrated the ComfyUI API to generate AI backplates (background scenes) for Audi car renderings. Cut API latency 25% with DynamoDB Streams, Redis caching, Lambda cold-start tuning and SQS/SNS events. Introduced TDD with Jest, Cypress and Supertest and reworked CI/CD on GitHub Actions, cutting production bugs 25%, and containerized services with Docker and Kubernetes. Built role- and market-based access: each country is a market with its own image-generation credit budget (some used 48M+ credits in six months), with Cognito and Volkswagen Group login.

Senior Full-Stack Developer

X-TeamContract EmployeeMay 2020 - Dec 2021 • 1 yr 8 mosWorked on X-Team's internal hiring portal, talent operations tools, and main marketing website. Built real-time WebSocket sync (React, Node.js) for the internal hiring portal, used by 20K+ users a month, replacing polling and cutting sync delays 40%. Built React/Redux frontends on REST/GraphQL APIs (NestJS, PostgreSQL, MongoDB) with 95%+ test coverage. Designed schemas and optimized queries in PostgreSQL and MongoDB for faster responses and better scalability.

Technical Lead & Full-Stack Engineer

KwansoFull-time EmployeeApr 2016 - Feb 2020 • 3 yrs 11 mosTeam lead and architect on client products built with Node.js, Angular, React, and Vue. Led and mentored 10+ engineers (Node.js, TypeScript, Angular, React, Vue) through code and architecture reviews. Architected Unlayer, a multi-tenant drag-and-drop email and page builder SaaS, from the first version: GraphQL API, PostgreSQL schemas, and an async job queue on RabbitMQ and Redis, raising backend throughput 30%. Owned Biomarker, a healthcare data platform with several sub-applications: an Angular dashboard (TypeScript, RxJS, NgRx, SASS) on a NestJS API, with MERN for the smaller modules. Reduced deployment time 30% by moving services to Docker and Kubernetes and automating CI/CD.

Software Engineer

Pikes SoftJan 2014 - Mar 2016 • 2 yrs 3 mosFull-stack work on PHP and Ruby on Rails web applications. Delivered 5+ web products in PHP, Ruby on Rails, and JavaScript, and improved load times 30% with SQL optimization and server-side caching. Built Review.ly, a URL shortener, working on backend logic, the database schema, and frontend features from the first build to launch.

Education

University of Education, Lahore

MS, Computer & Information Technology2011 - 2013

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