Ehtesham

Full Stack developer

IT Force • Fulltime

Jul 2023 - Present • 3 yrs 1 mo

* Architected and developed enterprise-level web applications using React.js, Next.js, React Native ,Node.js, Express.js, Nest.js, Python, FastAPI, AI, LLMs, LangChain, RAG, MongoDB, SQL/NoSQL, GraphQL, and PostgreSQL, primarily across **AI, healthcare, recruitment, safety, SaaS, CRM, games, and e-commerce** domains. * Built and maintained complex features for US-based healthcare systems, including care plans, clinical forms, patient scheduling, EHR workflows, intelligent document processing, AI-powered insights, and HIPAA-compliant workflows. * Designed and integrated **AI/LLM-powered solutions** using OpenAI/GPT models, RAG, LangChain, Python, and FastAPI for intelligent chatbots, document analysis, data extraction, automation, and personalized recommendations. * Integrated and managed REST, GraphQL, and legacy SOAP APIs in Node.js/Express environments, handling real-time data exchange across healthcare, CRM, AI, and enterprise systems. * Optimized application performance using Next.js server-side rendering (SSR), API routes, dynamic routing, caching, and scalable backend architecture. * Designed responsive, pixel-perfect UIs using HTML5, CSS3, Tailwind CSS, Bootstrap, and Material UI, with a focus on accessibility, mobile-first experiences, and modern user interfaces. * Led state management architecture using Redux Toolkit and Context API, improving application scalability, maintainability, and overall development efficiency. * Developed scalable **AI-powered SaaS, recruitment/talent, healthcare, safety management, e-commerce, marketplace, and enterprise platforms**, integrating modern AI capabilities with robust full-stack architectures.

Full Stack Developer

DevHelden • Fulltime

Jan 2022 - Mar 2023 • 1 yr 2 mos

* Used modern full-stack technologies including **React.js, Next.js, React Native, Node.js, Express.js, Nest.js, Python, FastAPI, AI, LLMs, LangChain, RAG, HTML5, CSS3, JavaScript, TypeScript, Bootstrap, Tailwind CSS, and Material UI**, along with Redux and React Context API, to build high-performance and scalable web, mobile, EHR, and AI-powered applications. * Developed scalable APIs using **Node.js, Express.js, Nest.js, Python, and FastAPI**, and implemented seamless integrations with Next.js applications and third-party services. * Primarily worked on **AI-powered healthcare platforms, EHR systems, hospital applications, e-commerce solutions, CRM platforms, AI SaaS products, and enterprise applications** for US-based clients, using MERN/PERN stacks and Next.js with TypeScript. * Built AI-powered features using **LLMs, OpenAI, RAG, and LangChain** for intelligent automation, document processing, data extraction, chatbots, and healthcare insights. * Developed complex UI and design projects for corporate clients, focusing on responsive, accessible, pixel-perfect, and user-friendly experiences. * Built responsive interfaces using modern CSS frameworks and integrated frontend applications with backend **RESTful APIs** and AI-powered services. * Continuously adopted modern technologies, development practices, and AI innovations to improve the performance, scalability, maintainability, and capabilities of EHR and enterprise applications.

Full Stack developer

Softly Wrapped • Fulltime

Dec 2017 - Jun 2022 • 4 yrs 6 mos

Developed Custom Analytics Dashboard: Built real-time data visualization tools using React.js, Next.js, and React Native, Nest.js,AWS Pstgres Supabase Adoption: Implemented GraphQL and RESTful API-driven CI/CD pipelines with Node.js,and Python, increasing deployment frequency by 40% and reducing post-release bugs by 60%. Designed Micro Frontend Architecture: Built scalable frontend modules using React.js and Module Federation, enabling independent team deployments and reducing application build times. Migrated Legacy Systems to Express: Spearheaded backend migration with Node.js, Python, Docker, and Kubernetes, reducing system downtime by 30% and improving scalability. Created Backend Integrations & APIs: Developed and integrated RESTful APIs and SFTP workflows to securely exchange healthcare and business-critical data. improving stakeholder decision-making and increasing data accessibility.