Sr. Software Engineer, Fullstack (UK)

At Firstup, we improve the employee experience at every moment that matters. We're looking for a Sr. Software Engineer to join our team responsible for public APIs, Agentic tools, and third-party integrations. As an active user of Generative AI tools and coding agents, you'll deliver innovative solutions while constantly improving our approach to architecture, scale, availability, and fault-tolerance.

Requirements

• Design, build, and maintain public-facing APIs and Agentic tools
• Develop and own integrations with external enterprise systems
• Build and maintain shared platform services
• Write high-quality code and provide thorough code reviews
• Apply broad knowledge to develop and maintain large-scale multi-tenant services
• Actively use Generative AI tools and coding agents
• Collaborate across teams on industry standards and best practices
• Design future-ready solutions and address architectural gaps
• Own production health for your services

Benefits

• PTO program
• Great health benefits
• Casual and friendly environment
• Remote work