Senior Fullstack Engineer – SaaS, Hybrid London
Summary
Senior Full Stack Engineer at Firstup (hybrid, London) designing large-scale, multi-tenant SaaS cloud services with a focus on availability and elegant architecture. Owns features end-to-end across frontend, backend, and data layers, mentors peers, champions shift-left testing, and integrates AI-assisted tooling.
Firstup is seeking a Senior Full Stack Engineer to design and deliver large-scale, multi-tenant cloud services with a relentless focus on availability and elegant architecture. You will own features end-to-end across the frontend, backend, and data layers while mentoring peers and elevating engineering quality.
You’ll champion shift-left testing, integrate AI-assisted tooling, and collaborate closely with Product and Design to translate requirements into intuitive user interfaces.