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Backend Developer

Summary

Build and maintain scalable .NET backend services in C# using .NET 6, Entity Framework, Docker, and AWS for a global platform.

At Big Blue Marble, we work on our own production-ready platform, already used by clients around the world. The product is stable and well-designed, which allows our developers to focus on building new, high-impact features rather than dealing with legacy code or unstable architecture. It’s a rewarding environment where your work directly contributes to real outcomes and you have room to explore and improve existing solutions.

As aBackend .NET Developer, you will join a cross-functional team working on scalable web applications and backend services. You’ll participate in both technical and product-related discussions, design robust solutions, and support the team during client sessions, technical workshops, and implementation phases. We value ownership, transparency, and collaboration — and we give you the tools and space to do your best work.

  • C# with the .NET 6 framework
  • ORM: entity framework
  • Docker
  • AWS.

What we expect:

  • At least 3+ years of experience in developing web applications (as a backend developer).
  • Analytical thinking skills and being able to translate organizational/business requirements into service functionalities
  • commitment to your project, including collaborating with the project team and the clients, conducting workshops and technical sessions, etc.
  • understanding of how high-performance web applications work
  • being able to solve problems and make decisions independently
  • very good knowledge of C# and .NET 6
  • good teamwork and learning skills.

Even better if you also have:

  • knowledge of the AWS cloud
  • familiarity with video processing and distribution.

What you’ll get in return:

  • compensation in the range of 12 500 - 18 000 PLN net B2B
  • fully remote work with flexible working hours
  • one full day per month for learning and development
  • MyBenefit platform funds (that you can use to buy a MultiSport card or other cool services)
  • a choice to join our group health insurance
  • access the wellbeing platform Mindgram that helps you stay in a good mental shape
  • access to the language learning platform Tutlo
  • company-wide quarterly meetings (when we head out together, sum up the quarter, have fun, and enjoy spending time as a team),
  • optional (bun fun!) team activities, like joint mountain trekking trips, St. Nicolas Day event for kids, board game nights, and more.
  • a welcoming office in the very heart of Poznań, if you prefer to work on-site.

If you’d like to join our team, leave your CV below. We’d be happy to get in touch with you!

Recruitment process:

  • Interview with Magda – People Operations Specialist – a 30-minute online meeting to get to know each other better,
  • Interview with the Chapter leader and the People Operations Specialist – a more in-depth conversation about the role and mutual expectations, lasting about 1 hour.

You can count on our feedback after each stage to ensure the process is as transparent and valuable as possible.

See also