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Registration: 22.07.2025

Umer Rafiq

Specialization: Principal Full Stack Developer / Machine Learning and AI Engineer
— Experienced Full Stack Developer with a leading strategic development project and managing high-performing teams at reputable companies. — Proficient in developing scalable web, mobile, and cloud-based applications using modern technologies like React, Next.js, Node.js, Python, ML, AI, LLMS and AWS. Skilled in overseeing the entire development process from concept to deployment, ensuring alignment with organizational goals. Recognized for driving innovation, optimizing workflows, and consistently delivering high-quality solutions on time.
— Experienced Full Stack Developer with a leading strategic development project and managing high-performing teams at reputable companies. — Proficient in developing scalable web, mobile, and cloud-based applications using modern technologies like React, Next.js, Node.js, Python, ML, AI, LLMS and AWS. Skilled in overseeing the entire development process from concept to deployment, ensuring alignment with organizational goals. Recognized for driving innovation, optimizing workflows, and consistently delivering high-quality solutions on time.

Skills

Python
JavaScript
Deep Learning
Machine Learning
Artificial Intelligence
RAG
LLMS
Natural language processing
PyTorch framework
Database management
API Documentation
Mobile app development
Frontend development
Backend programming
Responsive web design
Continuous integration and deployment
Full-stack development
RESTful services
Next.js
API design and integration

Work experience

Lead Ml and AI Engineer
02.2023 - 03.2025 |Powerhouse Technology
AWS, OpenAI, RDS, Python, AI
● Developed 3 different end to end RAG solutions with multilingual capabilities and multiple industry and domain verticals (Arabic, Turkish). ● Finetuned 7 billion, 13 billion, 40 billion parameters based LLMS for domain adaption , instruction tuning using Sagemaker Finetuning I and then Lora(low ranking adaption) to Tune LLM's for Project needs. ● Serving LLM's and Embedding Models on AWS Sagemaker real time inference endpoints, also customizing the deployment containers based on deepseed/mpi in case of non-availability of containers in Selected Regions of AWS. ● Engineered custom training and fine-tuning models via reverse engineering, leveraging single and multi-GPU setups for diffusion, transformers, and deep learning models. ● Deployed applications on AWS App Runner and RDS, integrating custom OpenAI scripts and sentence embeddings for efficient resume and CV analysis. ● Built an end-to-end pipeline using LangChain and OpenAI models to generate personalized course content and multiple-choice questions tailored to children's profiles, subjects, and topics. ● Developed clean, efficient, and scalable Python code to support complex AI applications, ensuring maintainability and performance optimization. ● Created, cleaned, and preprocessed high-quality datasets to ensure accuracy, relevance, and suitability for AI model training.
Senior Software Developer
09.2021 - 12.2022 |Webbuggs
CI/CD, React, Next.js (v13), TypeScript, TailwindCSS, JavaScript, Django, Flask, FastAPI, NestJS, Python, JavaScript, Docker, AWS
● Developed modern and responsive user interfaces using React, Next.js (v13), TypeScript, TailwindCSS, and JavaScript to deliver seamless user experiences. ● Built and maintained scalable backend systems with Node.js using the NestJS framework, creating robust APIs and ensuring system efficiency. ● Utilized frameworks such as Django, Flask, and FastAPI for microservices, backend solutions, and API development. Deployed applications using Docker for containerization. ● Deployed applications and managed cloud infrastructure on AWS S1, S2, and S3, ensuring secure, scalable, and reliable operations. Worked with Docker for containerized deployments and optimized CI/CD pipelines. ● Demonstrated proficiency in JavaScript, TypeScript, Python, NestJS, Docker, and the AWS ecosystem, enabling successful full-stack project delivery. ● Built databases and table structures for web applications.
Full Stack Developer
01.2018 - 08.2021 |NorthBay Solutions
React, Next.js (v13), TypeScript, TailwindCSS, RESTful APIs, Node.js, NestJS, UI/UX, CI/CD
● Built and maintained responsive and interactive user interfaces using React, Next.js (v13), TypeScript, and TailwindCSS, delivering high-quality, modern web applications. ● Developed scalable and efficient server-side applications using Node.js with the NestJS framework, designing RESTful APIs and managing business logic seamlessly. ● Created cross-platform mobile applications with React Native, ensuring smooth functionality and an intuitive user experience. ● Managed cloud services, utilizing AWS S1, S2, and S3 for data storage, deployment pipelines, and application scaling. ● Worked closely with cross-functional teams, including UI/UX designers, QA engineers, and stakeholders, to ensure project success. ● Conducted code reviews, implemented best practices, and optimized performance to ensure robust, maintainable, and scalable applications. ● Integrated third-party APIs to enhance overall application functionality and improve user experience. ● Working in an agile Scrum environment, I contributed to sprint goals by maintaining CI/CD pipelines for faultless integration, incorporating linting, unit testing and other quality checks.

Educational background

Computer science (Masters Degree)
2018 - 2020
University of Central Punjab
Computer science (Bachelor’s Degree)
2013 - 2017
University of Central Punjab

Languages

EnglishUpper Intermediate