Back to Jobs

Backend Developer (Java/Kotlin)   NEW

10 000 - 20 000 PLN

net B2B

  • Junior
  • Mid
  • Senior
Mateusz and Maciej


We are currently looking for a Senior Backend Developer to join our team, and help us develop one of the verticals in our core project - The innovative Lottery SaaS Platform.

We write the project in Kotlin, but we believe that for a good programmer, a language is only a tool, so we do not require you to know Kotlin in-depth.

However, if you are an unrepentant confesser of Java and you do not want to develop in other technologies, we have a job on another project to offer. Leave us your CV, let's call you and tell you about all the details of the project.


100% Remote

You can work 100% remotely from anywhere in the world.

Connect with us from sunny Tenerife or one of our co-working offices.

Shared workspace offices
Our Offices Thumbnail of Our Offices

Salary Ranges

We actually do want you to get as much as possible since we want to see great results.

  • Junior

    5 000 PLN

    10 000 PLN

  • Mid

    10 000 PLN

    20 000 PLN

  • Senior

    20 000 PLN

    25 000 PLN

Your role and responsibilities will focus on these key areas

  • Working on an innovative lottery SaaS platform that's made up of a complex ecosystem of web applications

  • Developing new features, solving technical problems, performing code reviews

  • At the beginning of our cooperation develop Shopfront - a generic frontend that renders dynamically based on the configuration provided from the backend.

Tech Stack

The below skills are essential when applying for this position.

  • Java


  • Kotlin


  • MongoDB


  • AWS


  • Hexagonal Architecture


  • REST


We're Looking for Someone Who Has

  • Proactive attitude and approach to solving problems

  • At least 2 years of experience in developing advanced web applications for commercial projects

  • Commercial experience in Kotlin or willingness to learn it

  • Experience in a microservice architecture

  • Good understanding of hexagonal architecture

  • Good understanding and skills in creating modern API based on REST

  • Willingness to be up to date with the newest technologies

An additional plus will be

  • Knowledge of Kotlin, Ktor, Koin, GraphQL, and REST

  • Experience with Kubernetes, Helm, GitLab CI/CD, AWS

  • The ability to write E2E tests using Cypress

  • The ability to write unit-test using Jest

Recruitment Process

  • First Call

    A half-hour call with our recruiter

  • Dev Call

    One-hour technical assessment

  • Offer

    We are able to complete the entire process in 1 week

Meet Our Team


Co-Founder & CTO

Szymon photo Thumbnail of Szymon photo


Head of Development

Maciej photo Thumbnail of Maciej photo


Head of Recruitment

Bartosz photo Thumbnail of Bartosz photo


Head of People & Operations

Wiktor photo Thumbnail of Wiktor photo


Senior Frontend Developer

Wojciech photo Thumbnail of Wojciech photo


Head of Design

Dominik photo Thumbnail of Dominik photo


Head of Marketing

Szymon photo Thumbnail of Szymon photo


Business Manager

Leopold photo Thumbnail of Leopold photo

Place for you

Your position

You! Thumbnail of You!

Perks & Benefits

Everyone in the team is an individual who is a team player. We share our ideas.

  • 100% Remote
    Work Scheme

    100% Remote Thumbnail of 100% Remote
  • International
    Integration Trips

    Integration Trips Thumbnail of Integration Trips
  • Training &

    Mentoring Thumbnail of Mentoring
  • Multisport &
    Social Activities

    Multisport Thumbnail of Multisport
  • 20 Days of
    Paid Vacation

    paid vacations Thumbnail of paid vacations
  • Structured Career

    Structured Career Progression Thumbnail of Structured Career Progression
  • Personal Office
    Device Equipment

    Personal equipment Thumbnail of Personal equipment
  • Custom Slack
    Emoji Icon

    Emoji Thumbnail of Emoji
  • Flexible
    Working Hours

    Flexible working hours Thumbnail of Flexible working hours

About Digital Colliers

We are a Cracow-based software house that provides web development services to customers worldwide. The technologies we mainly use are Java and JavaScript. The flat structure in our company makes you feel at home.

We will fully support your career path and help you identify both your potential and areas for improvement. Most importantly, we expect from you eagerness and willingness to learn and grow.

We do not cut your wings, we help you fly!

Get To Know Us

We will play it to anybody who ever wondered what is it like to work with us. Everybody in here is just genuinely himself and we believe you can tell it from the look on our faces. We are a team of hard-workers but fun and endorphins are just in our blood.

About Digital Colliers Video Thumbnail of About Digital Colliers Video

Join Us

Drag and drop file here

Any Questions? Talk to Wiktor

We are looking for creative, talented people with a collaborative mindset.
We give you the freedom to express your creativity and develop
professionally as an individual.

Wiktor Stefański Thumbnail of Wiktor Stefański

Wiktor Stefański

Head of People & Operations

If you want to hear more about current development opportunities. I will guide you through the process and make sure you are on board!