Senior Ruby On Rails Engineer / Tech Lead Location: London (Hybrid – 2 days per week onsite) Salary: Up to £100,000 (DOE) The opportunity: We’re looking for a Senior Ruby Engineer / Tech Lead to join a growing technology business building large-scale operational SaaS platforms used within complex, real-world environments. This is a hands-on senior engineering role with a clear pathway into broader technical leadership responsibilities. It would suit someone who enjoys solving complex backend challenges while also taking ownership of delivery, technical direction, and team support. You’ll play a key role in scaling a modern Rails-based platform that supports high-volume transactional workflows, integrations with external systems, and mission-critical operational processes. Working closely with the Director of Engineering, you’ll help shape backend architecture, improve delivery processes, support customer onboarding initiatives, and act as a senior technical escalation point across the platform. The business operates within a fast-paced product environment where reliability, scalability, and delivery quality are critical. The culture is collaborative, pragmatic, and ownership-driven, with a strong focus on autonomy, accountability, and continuous improvement. What you’ll be doing: As a Senior Ruby Engineer / Tech Lead, you’ll take ownership of backend delivery across key pr...