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Senior JavaScript Developer, Poland

Are you ready to work for an international product company? Are you paying close attention to how JavaScript is evolving, keeping up to date on the latest trends in its frameworks? If you have a collaborative and professional attitude, and are good at explaining your thinking behind a technical decision, come join our Warsaw office!

FROSMO is a Finnish software company based in Helsinki with offices in Poland, Spain, the UK and Sweden. Our software (conveniently called ‘Frosmo’) is the world’s first UI development software that fully understands how to utilize single tag development and the immense capabilities of modern browsers.

To support FROSMO’s continued success we are looking for

Senior JavaScript Developers

This is what we’re looking for in our ideal candidate:

We are looking for the best technical minds in Poland, who pride themselves on hobby programming. We have the ideal place for someone like you to develop, grow, fail, and succeed. If knowledge truly motivates you, read on!

We are targeting two types of JavaScript developers: one with an inventive mind who comes up with concepts and ideas, thinks about how to actually develop those ideas, communicates about them with our Technical PMs and customers, and then executes it. The other type of developer simply wants a list of tasks to just DO. We respect and want you both!

This is what you’ll be doing:

  • Proactively create and present new ideas
  • Innovate, test, and everything in between (full development process)
  • Create clear documentation on the projects you are working on
  • Work closely with your Project Manager to help them find the best technical solutions for the customers’ online businesses using FROSMO’s software
  • Study, learn and challenge yourself


  • 5+ years of professional experience developing web applications with JavaScript, CSS, HTML, Git
  • Experience with other languages e.g. PHP, Go, Python etc.
  • Excellent at VanillaJS, Jasmine, PhantomJS, Mustache templates and jQuery
  • Strong DOM (Document Object Model) and browser behavior knowledge
  • Good understanding of Promises, functional programming, object-oriented programming, closures
  • Knowledge of SQL and relational databases
  • Fluent in English (the official FROSMO language) and Polish

We offer you an amazing opportunity to

  • Make an impact in a fast growing international technology company
  • Be a valued and crucial part of our growth adventure
  • Collaborate with super fun and talented colleagues in a friendly and caring atmosphere
  • Grow as a professional with the culture that recognizes values such as: be yourself together, always aim higher, and learn, change and challenge

Ready? Set? Please apply here with your English CV. Talk to you soon!

Apply now

People in different roles have different perspectives. So getting input from a wide spectrum is important to me.
Markku, Development Director
Read what it’s like to work at Frosmo