Backend Developer

Big Blue Marble; Poznań; On-site; PLN 139,500 - 200,880; Full time

Benefits offered by this job

Compensation range of 12,500 - 18,000 PLN net B2B

Fully remote work with flexible hours

Learning and development day

MyBenefit platform funds

Group health insurance

Mindgram wellbeing platform access

Language learning platform access

Quarterly company meetings

Optional team activities

Job summary

A dynamic tech company is seeking a Backend .NET Developer in Poznań, Poland, to join their cross-functional team. The role involves developing scalable web applications using C# and .NET 6, with a strong emphasis on analytical thinking and teamwork. Candidates should have at least 3+ years of experience in backend development and a commitment to collaborative projects. Benefits include flexible working hours, remote work, and a range of well-being programs. Join us to make a real impact!

Qualifications

• At least 3+ years of experience in developing web applications as a backend developer.
• Ability to translate organizational/business requirements into service functionalities.
• Very good knowledge of C# and .NET 6.
• Understanding of high-performance web applications.

Responsibilities

• Develop scalable web applications and backend services.
• Participate in technical and product-related discussions.
• Design robust solutions and support the team in client sessions.

Skills

C# with the .NET 6 framework

Analytical thinking

Teamwork

Problem-solving

Learning skills

Tools

Entity Framework

Docker

AWS

Job description

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.