Senior Full-Stack Engineer — Remote & High-Impact SaaS

Firstup, Inc. is searching for a Senior Full Stack Engineer in the United Kingdom who will design and deliver large-scale, multi-tenant cloud services. You will drive system performance and quality, collaborating closely with product and design teams to deliver intuitive user interfaces.

This position requires 5+ years of relevant experience, including fluency in frontend and backend technologies like Ruby on Rails and React.js. Join a supportive team focused on making work better for every employee.

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