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Jobs(38,923)/Backend Engineer Role(820)/Tonsser (1) - Lead Backend Engineer
Tonsser

Tonsser - Lead Backend Engineer

Remote - Europe€80k - €90k/year1mo ago
RemoteStaffEMEAArtificial IntelligenceBackend EngineerRubyPythonElixirGoKotlin Multiplatform

Requirements

• 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

Responsibilities

• 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 • Our current stack • Ruby monolith with a GraphQL API • SQL (PostgreSQL) • Hosted on Heroku • Native iOS and Android apps, with the ambition to move to Kotlin Multiplatform

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