Arjun Umathanu

Arjun Umathanu is a Full Stack AI Engineer with over a decade of experience in software development. He currently works as Specialist 2 – Software Engineering at UST, where he has been contributing since 2019. He previously worked at Movate for nearly nine years. He specializes in TypeScript, JavaScript, Python, Go, Next.js, React.js, FastAPI, Flask, Django, and test-driven development. He has hands-on experience with tools such as Pytest, Vitest, Jest, React Testing Library, MSW, and Cypress. His expertise also includes AI-driven workflows such as prompt engineering, multi-agent orchestration, custom Model Context Protocol (MCP) server development and integrations, and Claude skills and plugin development. He also has experience in QA automation. Arjun has developed open-source tools such as shai hulud-scan (a supply-chain security scanner for JavaScript/TypeScript projects) and restx (a CLI HTTP client). He contributes to Manning liveProject series as an implementer, beta tester, and co-author, and regularly conducts technical training sessions. He is committed to simplifying complex technical concepts and making them accessible to a broader audience.