Hamza Raja

Technical Lead with 10+ years of experience delivering scalable full-stack SaaS platforms using Node.js, Nest.js, React, and Next.js. Proven leader managing teams, driving architecture, and optimizing high-volume systems supporting 1M+ users with 99.95% reliability.

Technical Lead (Full Stack – Node.js, React, SaaS Platforms) at Self Employed (2025-01 – Present)

• Led a team of engineers as a player-coach, managing agile sprint delivery, conducting code reviews, and mentoring developers to improve code quality and velocity
• Architected scalable backend services using Node.js and Nest.js, designing RESTful APIs for high-volume transactional systems
• Built responsive frontend applications using React and Next.js, improving performance and user experience across complex workflows
• Designed and optimized database architecture using MongoDB (NoSQL) and MySQL (relational), ensuring data integrity for transactional systems
• Delivered SaaS-style platforms with stateful workflows, payment integrations, and secure user data handling, improving system scalability and reliability

Senior Software Engineer (Full Stack – JavaScript/TypeScript Ecosystem) at Iver Soft (2024-12 – 2025-10)

• Developed scalable applications using JavaScript/TypeScript, Node.js, and React, supporting high-performance user-facing systems
• Implemented backend services with Nest.js, building modular and maintainable APIs for enterprise-scale applications
• Designed frontend systems using React and Next.js, focusing on performance optimization and component-based architecture
• Optimized MongoDB and MySQL queries, improving database performance and handling high-volume transactional data
• Collaborated in agile environments, contributing to sprint planning, technical design discussions, and cross-functional delivery

Senior Platform Engineer (SaaS & Distributed Systems) at Iver Soft (2020-05 – 2024-11)

• Engineered large-scale SaaS platforms using Node.js and REST APIs, supporting over 1M daily transactions with high availability
• Built frontend interfaces using React and modern JavaScript (TypeScript) for real-time, data-intensive applications
• Designed database systems leveraging MongoDB for flexible data models and MySQL for transactional consistency
• Solved complex challenges related to data synchronization, system scalability, and performance optimization
• Led technical initiatives, mentoring engineers and improving engineering standards across teams

Software Engineer (Full Stack Development) at SoftServe (2017-04 – 2020-05)

• Built full-stack applications using Node.js, JavaScript (ES6+), and React, delivering scalable enterprise solutions
• Integrated RESTful APIs and third-party services, supporting secure and reliable system communication
• Developed responsive UIs using React and modern frontend practices, improving usability and performance
• Optimized MySQL database queries and indexing, improving application speed and reporting efficiency
• Collaborated with distributed teams, ensuring strong communication, documentation, and delivery alignment

Bachelor's Degree in Computer Science – University of Hertfordshire (2012-01 – 2016-12)