Full Stack Engineer

Open to full-time

Bio

Usman A is a Full Stack Engineer with several years of experience in developing scalable web applications across diverse industries. He specializes in the MERN stack, utilizing MongoDB, Express.js, React.js, and Node.js to build dynamic web applications. Usman also employs Next.js, NestJS, FastAPI, and Django for creating APIs and microservices, ensuring robust authentication and efficient data handling. His expertise extends to optimizing SQL and NoSQL databases and implementing CI/CD pipelines with Docker and cloud platforms like AWS and Vercel. At eLeaderz, Usman improved user engagement by 35–45% through optimized UI/UX and faster page loads, and reduced backend response time by 30% with efficient data modeling. He also developed the QUBIE CHAT application, integrating AI for document interaction and secure authentication, and the Expensey app, featuring NLP-based expense tracking and AI-powered financial insights. Usman holds a Bachelor of Science in Information Technology from the University of Sargodha. He is well-suited for roles that focus on innovative web solutions, particularly those involving AI integrations and performance optimization.

Expertise

MongoDBGraphQLGitJavaScriptWordPressSQLPHPCSSHTMLNext.jsPythonReactAWSFast APINode.jsTypeScriptRelational DatabaseDocument Database

Video Intro

Assessments

General Project Assessment

Great on Implement LRU Cache Algorithm, Difficulty Medium · Perfect on Real-Time Dashboard in React, Difficulty Medium

Projects

QUBIE CHAT WITH YOUR DOCUMENTS

Built a web application where users can upload multiple documents and interact with them through an AI-powered chat interface. Implemented document processing, secure authentication, chat history, and payment features using Next.js, MySQL, and cloud integrations

Expensey: Smart Expense Tracker

Built a responsive expense tracking application that records daily spending, categorizes transactions, and visualizes financial data through interactive charts. Integrated NLP-based expense entry, allowing users to add transactions using natural language. Implemented AI-powered monthly summaries that highlight spending patterns, identify problem areas, and surface positive financial habits to improve money management.

CarePlus- Hospital Management System

A comprehensive healthcare patient management application that streamlines patient journeys and administrative operations. Features patient registration, appointment booking, SMS notifications, secure document uploads, and a powerful admin dashboard.

Experience

Full Stack Engineer
eLeaderzFeb 2026 — Present
- Built and deployed scalable full-stack applications using MERN and Next.js, improving user engagement by 35–45% through optimized UI/UX and faster page loads.
- Designed RESTful APIs using Node.js and FastAPI, reducing backend response time by 30% via query optimization and efficient data modeling.
- Implemented authentication systems (JWT, role-based access), enhancing application security and reducing unauthorized access incidents by 100%.
- Optimized MongoDB and SQL queries with indexing and aggregation pipelines, decreasing database load time by 40% under concurrent traffic.
- Developed server-side rendered (SSR) and static optimized pages in Next.js, improving SEO performance and increasing organic traffic by 25%.
- Integrated third-party APIs and AI services, automating workflows and reducing manual operational effort by 50%.
ReactJsNodeJsExpressJsNextJsDjangoFastAPIMongoDBPostgreSQLPrisma
Full Stack Software Engineer
GosignMay 2025 — Feb 2026
- Built and maintained production applications using NestJS and ReactJS, improving backend performance and frontend responsiveness.
- Designed and optimized RESTful APIs, reducing response time by 25% through efficient service and query design.
- Configured and customized TYPO3 CMS, streamlining content workflows and cutting publishing time by 40%.
ReactJsNodeJsNestJsExpressJsNextJsPHPMySQLtypo3WordpressJoomlaGitGitlabCI/CDVector DatabasesPineconeembeddingsLLMsOpenAIGeminiTailwindCSSShadcn UI
Software Engineer Intern
GosignFeb 2025 — Apr 2025
- Resolved critical production issues, improving system stability and reducing downtime. Collaborated with cross-functional teams to deliver high-performance web and CMS solutions on schedule.
- Contributed to GenAI initiatives, automating content generation and reducing manual effort by 50%.
- Explored Agentic AI workflows to enable autonomous task execution and process optimization.
LLMsOpenAIGeminiReactJsReactJS
Web Developer Intern
HiSkyTechAug 2024 — Jan 2025
- Built responsive web applications using HTML, CSS, and JavaScript, improving user engagement through clean UI and intuitive interactions.
- Developed dynamic frontend features with vanilla JavaScript, reducing page reload dependency and improving user experience.
- Optimized layouts for cross-browser and mobile compatibility, increasing accessibility and usability across devices.
- Implemented form validations and client-side logic, reducing user input errors and improving data accuracy.
HTMLCSSJavascriptThirdParty APIsBootstrap