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NAVBLUE Limited Logo NAVBLUE Limited · IT - Software Development

Junior-Intermediate .NET Backend Developer

Poland, Gdańsk · Job Posted December 10, 2025
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Job Description

We are looking for an enthusiastic Software Developer to join our team, where you'll have the opportunity to grow your skills working with SaaS applications in a microservices-based environment. As a member of our team, you will actively participate in the software development lifecycle. Your primary focus will be on coding, implementing features, and contributing to test automation, while also being involved in design discussions, code reviews, and deployment processes. Teams are responsible for specific services or products. Our solutions help airlines manage safe and high-performance flight operations.

Job Responsibility

  • Develop new and maintain existing .NET (C#) code in an AWS cloud environment
  • Contribute to code quality by applying coding best practices, learning about test-first mindsets, and following security standards
  • Actively participate in implementing various types of tests, including unit, component, and functional tests, to help ensure software reliability
  • Assist in building and improving development processes
  • Work collaboratively within a small agile team to deliver new features and fix defects
  • Support software architecture discussions and learn to translate system-level designs into robust, maintainable, and high-quality code, following best practices in software engineering

Requirements

  • 1+ years of professional experience in software development
  • Recent experience developing software with .NET or .NET Framework, C#, and AWS (or other cloud service providers)
  • Experience writing unit tests, component testing or integration testing
  • Applying best practices to keep code maintainable
  • Hands on experience with ASP.NET Web API
  • Experience working with databases and understanding of Entity Framework
  • Bachelor’s Degree in software engineering or a related field
  • Good spoken and written English skills

Nice to have

  • Hands-on experience with Python in testing area
  • Hands-on experience with RESTful/SOAP API design, development, optimization, testing, and security
  • Solid understanding of DevOps practices, including CI/CD pipelines (e.g., GitHub Actions, GitLab CI, Jenkins), containerization with Docker, and monitoring/logging tools
  • Expertise in implementation of automated functional tests using Python
  • Understanding of software testing concepts and methodologies, including unit testing, component testing, and integration testing (covering functional and non-functional aspects). Demonstrable knowledge of ISTQB best practices. ISTQB certification is a strong asset
  • Strong capability in identifying technical challenges and bottlenecks, constructively proposing and implementing effective solutions, while actively building team engagement and fostering a positive atmosphere
  • Experience with WPF (Windows Presentation Foundation)
  • Understanding of ASP .NET MVC and ASP .NET Web pages
  • Working knowledge of JavaScript
  • Basic understanding of airline operations, flight planning, or air navigation principles
  • Passion for the aviation industry

What we offer

  • Hybrid work environment with up to 2 days working from home weekly
  • Stable employment based on a full-time job contract
  • International working environment in a dynamic company
  • Access to the latest knowledge and technologies enabling professional development
  • Training and development possibilities
  • Participating in international projects and international trips
  • Competitive salary dependent on experience and qualifications
  • Flexible working hours and work-from-home opportunities
  • Private medical coverage for you and your family
  • Sport card
  • Life insurance for you and your family
  • Co-funding for meals
  • Employee stock ownership plan
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