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Senior Kotlin Developer / Tech Lead (Kotlin+Python)
  • Gdynia
Senior Kotlin Developer / Tech Lead (Kotlin+Python)
Gdynia, Gdynia, Pomeranian Voivodeship, Polska
Jit Team sp. z o.o.
26. 2. 2026
Informacje o stanowisku

technologies-expected :


  • Kotlin
  • Python

about-project :


  • Salary: 1000-1400 pln/day on B2B
  • Work mode: elastic hybrid (1 day per week from Gdynia/Warszawa/Kraków/Rzeszów)
  • You will join the Language Intelligence team, responsible for building and scaling intelligent solutions supporting language-driven features within the product ecosystem. The team works in a cross-functional setup, closely collaborating with Product, UX, and Business stakeholders. The role combines strong engineering leadership with hands-on technical involvement, ensuring engineering excellence, high-quality delivery, and alignment between business goals and technical execution. This is a leadership position with real impact on architecture, delivery strategy, and product evolution.

responsibilities :


  • Lead and develop the Language Intelligence engineering team
  • Take end-to-end ownership of delivery, quality, and reliability
  • Drive architectural decisions and technical direction
  • Ensure engineering excellence standards (code quality, testing, CI/CD, production readiness)
  • Collaborate closely with Product, UX, and Business stakeholders
  • Translate business needs into technical solutions and execution plans
  • Participate in product discovery as a technical partner
  • Conduct code reviews and support the team in solving complex technical challenges

requirements-expected :


  • Proven experience leading a software development team (people leadership + delivery ownership)
  • Min. 7 years of experience with Kotlin and experience with Python
  • Ability to contribute to architecture decisions and conduct high-quality code reviews
  • Experience in ensuring engineering excellence (clean code, testing strategy, CI/CD, production readiness)
  • Strong ownership mindset and accountability for outcomes, quality, and reliability
  • Ability to translate business goals into clear scopes, priorities, and execution plans
  • Experience working in a cross-functional environment (Product, UX, Business)
  • Very good communication skills and knowledge of English
  • Hands-on Team Leader profile: ~30% active coding, ~40% technical leadership, ~30% people leadership

offered :


  • Real impact on product direction as a technical partner in product discovery
  • Strong ownership and autonomy in technical and delivery decisions
  • Possibility to work on AI-powered and innovative solutions
  • Contribute to the development of a leading e-commerce advertising platform

  • Praca Gdynia
  • Gdynia - Oferty pracy w okolicznych lokalizacjach


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