Front-end developer

We are looking for a Front-End Developer to strengthen our development team! Who we are Kassavirtanen Oy is a growing invoicing service company that designs and develops its own systems, websites, and digital services for businesses. We operate from a modern office in the heart of Helsinkis Kamppi district, where teamwork and open communication are at the core of everything we do. We focus on high-quality code, long-term development, and understanding our clients' businesses. You will have the opportunity to work on meaningful projects that matter to us and our clients. Your role with us We are now looking for a Front-End Developer who is passionate about creating user interfaces and has a good eye for functional user experiences. You will work as part of our development team, where we design and implement our own systems as well as custom web services for our clients. In collaboration with back-end developers and designers, you will build modern, responsive user interfaces for various environments. Technologies we use: React – for building modern user interfaces and components JavaScript – strong knowledge of both the fundamentals and advanced features C# / .NET – for back-end development SQL – handling databases and integrations What we expect from you: Previous experience in front-end development (at least 1-2 years) Strong understanding of React and JavaScript Ability to write clean, maintainable code Experience working with SQL databases Understanding of responsive design and good user experience principles Fluent in Finnish or English Teamwork skills and a willingness to learn What we offer you: Interesting projects with the opportunity to influence their implementation A supportive work environment and colleagues who will help you grow A modern workspace in a cozy office in the heart of Kamppi A competitive salary and excellent employee benefits Interested? We review applications and conduct interviews throughout the application period, so we encourage you to apply as soon as possible by sending us your cover letter, CV, and salary expectation. You are also welcome to send us an open application, as we are always interested in hearing from talented people. Please remember to indicate in your application which position you are applying for. :) Please send the application via digital application portal https://account.jobportal.fi/tyopaikat/front-end-developer/171983JP211714/hae