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Staff Backend Engineer

Poland, Warsaw B2B · Job Posted February 04, 2026
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Job Description

Hybrid role based in Warsaw, Poland. We are looking to hire for this role on a B2B consultancy agreement, while still providing all the benefits outlined in the job description. If you're a tech freak with an insatiable curiosity for cutting-edge technologies, join Uncapped and become a driving force behind the next generation of groundbreaking startups. We're looking for engineers passionate about learning, continuously evolving their skills, and pushing the boundaries of software development. We don't expect you to know everything, but we value your eagerness to expand your knowledge and contribute to the growth of our engineering team. At Uncapped, we believe that engineering is not just about tasks and deliverables; it's about creating valuable business outcomes and shaping the future of technology. We encourage you to bring your ideas to the table, engage in discussions, and explore unconventional approaches to problem-solving. We seek a self-motivated engineer passionate about microservices architecture, automated testing, and continuous improvement. If you're eager to work with the latest technologies, such as Java 21 and SpringBoot 3.4, Uncapped is the perfect place for you. Join us to make a meaningful impact on the world of technology and empower entrepreneurs to achieve their dreams.

Job Responsibility

  • Stay up-to-date with the latest microservices technologies and best practices, ensuring the team remains at the forefront of innovation in the field
  • Work effectively as part of a self-managed team, demonstrating strong collaboration skills and a commitment to team dynamics in Kanban methodologies with fewer meetings and more focus time
  • Design, develop, and maintain microservice architectures for high-performance applications using the latest Java and Spring framework versions

Requirements

  • A minimum C1 level of English proficiency is required
  • 10+ years of hands-on experience in modern Java frameworks and methodologies, with a strong focus on the Spring framework
  • Ability to define scope of the work and make it happen
  • Coaching & Writing high quality automated tests
  • Ability to work independently in a remote environment with occasional in-person meetings in small self managed teams built with engineers and product owners
  • Passion for Java programming and a desire to make a positive impact in the software industry using the latest technologies

What we offer

  • Unlimited holiday
  • Competitive compensation plan
  • MacBook
  • Personal growth fund: Raise your game from great to spectacular
  • Monthly recognition and awards: Celebrate wins big and small
  • The opportunity to make a big impact every day on the lives of European and US entrepreneurs
  • Workspaces in Warsaw, London and Atlanta

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