Junior Front-end Developer

Työpaikkakuvaus

We are looking for a Junior Front-End Developer to strengthen our development team!

Who we are

Kassavirtanen 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 Junior 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

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. :)

About Us

Kassavirtanen Oy is a Helsinki-based company founded in 2016 that offers affordable and hassle-free invoicing services as well as simplified entrepreneurship solutions. Our service allows you to invoice for your work without needing your own business ID, so our clients can focus on their work while we handle the paperwork.

Kassavirtanen takes care of invoicing, paperwork, insurance, and collections on your behalf. The service costs just 3% of the invoice amount excluding VAT, and there are no separate charges for sending invoices or debt collection.

We operate as part of Vastuu Groups Trusted Partner service and act as an agent for the Mutual Employment Pension Insurance Company Elo in matters related to YEL insurance. This ensures that our operations are transparent, reliable, and secure for our clients.

Kassavirtanen Oy primarily serves freelancers as well as those working on a project or seasonal basis across various industries. Our main areas of expertise include HR consulting, IT services, and financial management services for light entrepreneurs.

Kassavirtanen is a partner that makes invoicing a breeze—so you can focus on what you do best.

Please fill out the online application form

https://account.jobportal.fi/tyopaikat/kassavirtanen-oy/171983/junior-front-end-developer/215170