Lead Backend Engineer
Tonsser
About the role
Description
• Lead the architectural direction of our backend platform as we evolve from where we are today toward what's next
• Drive the technical roadmap for our new flagship project
• Set the standard for how the team works with AI, both in our development workflow and as a product capability
• Ship production code, review PRs, and mentor the engineers around you
• Partner closely with product, mobile, and design to turn ambitious ideas into things that actually work at scale
• Make pragmatic calls about what to keep, what to evolve, and what to rebuild
Requirements
• Significant experience as a senior or lead backend engineer, ideally with time spent owning architecture decisions in a production environment
• Deep comfort with at least one of Ruby, Python, Elixir, Go, or a similar modern backend language, and the judgement to know when language choice matters and when it doesn't
• Strong opinions on API design, data modelling, and system evolution
• Hands-on experience integrating AI/LLM capabilities into real products, or a strong, demonstrable interest in doing so
• Experience leading or mentoring other engineers
• Comfortable working remotely across European timezones
• Bonus: experience with consumer-scale mobile backends, GraphQL, or Kotlin Multiplatform
Company
Tonsser is a European football app platform that helps youth players track performance, get discovered, and pursue opportunities. The company is launching its most ambitious chapter yet with a new flagship project aimed at redefining youth sports and improving players’ chances to be noticed by clubs and scouts.
Tonsser