Lead Backend Engineer

🕒 May 13

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Tonsser

WebsiteLinkedInAll Job Openings

11 - 50 employees

🎮 Gaming

⚽ Sports

👥 B2C

Gaming • Sports • B2C

Tonsser is a football community and app designed to help the next generation of football players elevate their skills and be recognized for their efforts both on and off the field. With over 2 million players engaged, Tonsser facilitates player trials, match participation, and recognition through features like Player of the Match votes. The app supports young athletes in their journey to professional clubs, with a significant number offered tryouts and contracts with professional teams. Tonsser aims to create a culture and community that influences the future of football, empowering young players to unlock their potential.

📋 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