Summary
Jan Sargsyan is a contract Senior Fullstack Engineer with nearly a decade of hands-on experience building high-performance, TypeScript-first web and mobile applications. He specializes in React, Next.js and React Native, pairing pixel-perfect UIs with serverless and cloud-native backends on AWS to ship production-ready features quickly. Known for improving performance (LCP, TTI, Core Web Vitals) and developer experience, Jan also implements robust CI/CD, testing and real-time data pipelines to scale products from MVP to large platforms. He thrives in remote, fast-paced contracts where he unblocks teams, mentors engineers, and simplifies architecture while staying deeply pragmatic about delivery. Having worked across AI, fintech and biotech, he brings a product-minded full-stack perspective—equally comfortable writing Playwright tests as designing Step Functions. Based in the UK and available for immediate contract work, he favors projects that reward autonomy, curiosity and measurable impact.
9 years of coding experience
8 years of employment as a software developer
Bachelor of Science (BSc), Computer Science, Bachelor of Science (BSc), Computer Science at Coventry University
Polish, English