Fullstack Developer

Mid • Hybrid

Kraków, Poland

Fullstack .NET Developer (Angular | Flutter | .NET | SQL)

Kraków (Hybrid) | Full-time | 3+ years experience

Recruitment timeline: Please note that interviews will begin in January due to the Christmas period, with a planned start date in March.

At TISSL/part of ClearCourse Group we’re looking for a Software Engineer to join our dynamic development team and help build high-quality, scalable applications that make an impact. This role focuses primarily on frontend development using Angular and Flutter, while also supporting backend services built with C#/.NET and SQL.

You’ll work closely with cross-functional teams to deliver secure, performant, and user-friendly solutions — and have the opportunity to grow your skills across multiple technologies.

What you’ll do:

Develop, maintain, and enhance applications using Angular and Flutter
Support backend development with C#/.NET and SQL
Design and implement RESTful APIs and integrate them with frontend applications
Ensure application security, performance, and scalability
Perform unit testing, debugging, and participate in code reviews
Collaborate in Agile sprints, contributing to planning, development, testing, and deployment
Work closely with the Product team to translate requirements into technical solutions
Stay up to date with emerging technologies and suggest process improvements

What we’re looking for:

3+ years of software development experience
Strong knowledge of Angular, Flutter, HTML, CSS, TypeScript, and JavaScript frameworks
Experience with C#/.NET and SQL Server (plus NoSQL)
Familiarity with Git and Agile methodologies
Strong problem-solving skills and attention to detail
Excellent communication and teamwork skills
A proactive mindset and eagerness to learn new technologies

Nice to have:

Experience with Ionic or Cordova
Knowledge of Azure or AWS cloud platforms
Familiarity with Azure Functions, Azure DevOps, and CI/CD pipelines
Experience with authentication frameworks (OAuth, JWT, IdentityServer)
Interest in cross-platform development

What We Offer:

Multisport co-financing
Private medical care (plus additional coverage)
Certification & language course support
Weekly Lunch Tuesdays and Volleyball Thursdays
Chill zone with a football table
Integration events
Collaborative, product-focused team
Opportunity to grow with a fast-evolving tech company
Involvement in meaningful projects used by real customers daily

Apply now and help us build innovative solutions that last!

ClearCourse Dev

ClearCourse Dev is a dynamic technology company specializing in the development of high-quality, scalable applications. The company operates within the software development industry, focusing on both frontend and backend technologies, including Angular, Flutter, C#/.NET, and SQL. ClearCourse Dev values collaboration, innovation, and continuous learning, fostering a proactive and growth-oriented work environment. The company is committed to delivering secure, performant, and user-friendly solutions, emphasizing the importance of staying up-to-date with emerging technologies. ClearCourse Dev is characterized by its collaborative, product-focused team and its involvement in meaningful projects that have a real impact on customers. The company is fast-evolving, offering opportunities for professional growth and development.