Javascript developer (full-stack)

Are you an experienced javascript developer, looking to join a flexible, fast-paced team of software developers? Meet hollso!

We are looking to meet our new colleague – a JavaScript developer (Junior/Mid), who has strong software development fundamentals and is eager to put this knowledge into action, with projects in the full spectrum of software development – backend, frontend development or both.

At Hollso we develop custom web applications, focusing on flexibility, building experience through education, mentoring and practice. We are a small team, relying on each other’s engagement, active participation and eagerness to learn.

We know that a software developer’s primary skill is to transform liquids into source code, so along with all educational tools and mentorship, you will have unlimited coffee (in a reasonable healthy quantities) and sometimes beer (in unhealthy quantities during our team buildings), to transform into a working, tested quality code!

Main responsibilities

  • Develop high quality, tested source code, following best practices and standards
  • Work in agile environment, based on the scrum methodology
  • Use git as a source control
  • Be friendly and have fun!


  • Practical experience building JavaScript applications. Professional experience of 1+ years will be a strong advantage.
  • Have solid knowledge of programming fundamentals (any modern language will do)
  • Have solid knowledge of Object Oriented Programming
  • Have good knowledge of algorithms and data structures
  • Have some experience writing unit-tests and refactoring smelly code
  • Have some knowledge in building or/and consuming REST services
  • Have some knowledge in web fundamentals (HTTP) as well as writing HTML/CSS

Bonus points

  • Experience with project-management tools (e.g Jira)
  • Knowledge of another programming language (c#, python)

Why no tech requirements like “1 year experience with React or Vue”? Because we are pretty sure you already have some experience with modern frameworks and because having a strong knowledge of the fundamentals, means it is just a matter of time and motivation to learn to use react/vue/express/nest/next and so on.

Depending on your background and interests, you would learn to use at least some of the following:

  • Frontend frameworks, such as React or Vue
  • Typescript
  • Node.js & Express.js
  • PostgreSQL with ORM
  • SQL

Sounds good? Send us an email with your CV at and we will get back to you!