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Mid Backend Developer   NEW

10 000 - 20 000 PLN

net B2B

  • Junior
  • Mid
  • Senior
Leopold and young man


We are currently looking for a Backend Developer to join our team, and help us create the server-side of our international project in the lottery and gaming industry.

In this Software Engineer role, you will be working in a young, dynamic, development team while collaborating with our developers, UI/UX designers, POs, QAs, PM, and works in Scrum.
The goal of the project is to build an innovative eCommerce SaaS platform operating in the cloud. It's a greenfield project that we build from the ground up.

Our developers are always willing to improve and share their knowledge so, if you are passionate about what you do and you're not afraid of challenges come to us and let's create together game-changer projects. For great development, we expect that you will be sharing your knowledge with our developers too and will become a part of our Digital Colliers Family.

You will work with experienced, committed people who will appreciate you, your skills, and your knowledge and give you support when you need it.


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

    3000 PLN

    6000 PLN

  • Mid

    10000 PLN

    20000 PLN

  • Senior

    20000 PLN

    32000 PLN

Main Responsibilities

  • Working on a worldwide SaaS platform

  • Developing new features, solving technical problems, preparing documentation, performing code reviews, writing code and tests

  • Striving for superior quality

  • Taking part in daily team meetings

  • Working in an international team

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 in 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

  • Good English skills (min. B2)

Tech stack

  • Kotlin, Ktor, Koin

  • GraphQL, REST

  • Microservices Architecture

  • Kubernetes, Helm, GitLab CI/CD, AWS

  • MongoDB, RabbitMQ

  • Kotest, MockK, Pact

  • Hexagonal Architecture

  • We are open to new ideas!

Recruitment Process

  • First Call

    First, short interview to know each other and talk about your and our expectations

  • Recruitment Task

    Second step will be a short recruitment task

  • Dev Call

    Third step is a one-hour call with our developer

  • Offer

    We are able to complete the entire process in one week

Meet Our Team

Szymon photo Thumbnail of Szymon photo


Chief Technology Officer

Maciej photo Thumbnail of Maciej photo


Senior Team Leader

Bartosz photo Thumbnail of Bartosz photo


Head of Recruitment

Wiktor photo Thumbnail of Wiktor photo


Head of People & Operations

Wojciech photo Thumbnail of Wojciech photo


Senior Frontend Developer

Dominik photo Thumbnail of Dominik photo


Head of Design

Szymon photo Thumbnail of Szymon photo


Head of Marketing

Leopold photo Thumbnail of Leopold photo


Business Partner

You! Thumbnail of You!

Place for you

Your position

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

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  • 20 Days of
    Paid Vacation

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  • Private Healthcare

    Private healthcare insurance Thumbnail of Private healthcare insurance
  • Personal Office
    Device Equipment

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  • Custom Slack
    Emoji Icon

    Emoji Thumbnail of Emoji

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.

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Join Us

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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!