Fullstack Developer

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!