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September 2, 2026

Senior Python Developer

Senior • On-site

Krakow, MA, Poland

Join as a Senior Python Engineer in an environment focused on professional development.

Responsibilities

  • Design, develop, and expand scalable backend services, modules, and REST APIs within a SaaS architecture.
  • Implement, verify, and continuously test analytical and statistical algorithms to guarantee correctness and output accuracy.
  • Analyze business and technical requirements with product teams, engineering peers, and Tech Leads.
  • Diagnose, analyze, and efficiently resolve technical issues and production bugs.
  • Actively use AI developer tools in daily workflows and propose concepts for AI-powered product features.

Requirements

  • Strong Python fundamentals and commercial experience developing applications with Django.
  • Proficiency with relational databases, such as PostgreSQL.
  • Experience architecting, designing, and delivering scalable REST APIs.
  • Daily experience using AI coding assistants, such as Cursor, GitHub Copilot, or Claude Code.
  • Professional fluency in written and spoken English for collaboration in an international team.
  • Readiness to work with applied statistics, including regressions, distributions, and p-values, and implement models alongside domain experts.

What we offer

  • Work in a Scandinavian culture built on logic and dialogue.
  • Health and sports benefits tailored to your needs.
  • Speed Coaching sessions that provide new perspectives and solutions.
  • Sports training, an internal team, and opportunities to take part in competitions.
  • Team events and development-focused meetups.

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