Umer Abdul Majeed

Full Stack Developer with 3+ years of experience building scalable, production-grade web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js), Next.js, NestJS, TypeScript, and Python (Django, FastAPI). Strong experience in REST API development, authentication and authorization (JWT, OAuth 2.0), database design and modeling, and performance optimization, delivering end-to-end solutions for US-based clients in Agile teams. Currently learning AI applications with Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), Agentic AI, CrewAI, and Model Context Protocol (MCP).

MERN Stack Developer at CODES ORBIT (2023-08 – Present)

• Develop and maintain production full-stack web applications for US-based client Protovate using React.js, Node.js, Express.js, MongoDB, and MySQL across frontend, backend, and database layers.
• Design and implement RESTful APIs and backend services that ensure reliable communication, data validation, and secure data exchange between frontend applications and databases.
• Optimize application performance through backend query optimization, lazy loading, and code splitting, reducing load times while maintaining application stability.
• Translate survey questionnaires and business requirements into maintainable application logic, data models, and scalable programming structures.
• Collaborate with stakeholders and cross-functional engineering teams in an Agile/Scrum environment to clarify requirements, design technical solutions, and deliver production-ready features.
• Diagnose and resolve frontend, backend, and database issues through root-cause analysis, implementing targeted fixes while minimizing regressions to existing functionality.
• Engineered MCP server tools and LLM infrastructure supporting AI model/provider routing, reusable prompt templates, and token and usage tracking across AI workflows.

Full Stack Developer at REACTIVE SPACE (2022-02 – 2022-04)

• Built and maintained full-stack web applications using MongoDB, Express.js, React.js, Node.js, Django, and FastAPI across frontend, backend, API, and database layers.
• Analyzed business and technical requirements to identify implementation constraints, define problems, and recommend feasible software solutions.
• Designed system architecture and prepared flowcharts, technical specifications, and programming guidelines to support clear and consistent implementation.
• Developed lightweight backend services and REST APIs with FastAPI, focusing on efficient request handling and maintainable service architecture.
• Investigated application and workflow issues to improve data flow, system usage, and code maintainability across the software development lifecycle.

Bachelor of Science in Computer Science – UNIVERSITY OF ARID AGRICULTURE (2023-07)