Oferta pracy

Senior Backend Developer


16 00026 000 net (+ VAT) / mth.
  • Twarda 18, Warszawa
    Warszawa, Masovian
  • Offer expired 13 days ago
  • Remote recruitment
  • Remote work
  • B2B contract
  • full-time
  • specialist (Mid / Regular), senior specialist (Senior)


Twarda 18


Technologies we use


  • Java

  • Software Architecture

  • Kotlin

  • Spring

  • DevOps

  • GraphQL

  • Ktor

Operating system

About the project

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. The platform will be a complex ecosystem of web applications. Our team has a wide range of responsibilities in the project including building both frontend and backend of all applications, designing the UI and branding of the product, defining business requirements as well as doing market research and preparing concepts. The team consists of frontend developers, backend developers, UI/UX designers, POs, QAs, PM and works in Scrum.

As a member of our team, we expect from you solid general knowledge of web development and strong experience in building modern web applications. Except for regular development, your duties will include suggesting solutions to complex backend problems, supporting other team members with your knowledge and taking part in the definition of business requirements. You’ll have a real impact on the architecture of the application (it’s not a catch-phrase, we mean it). We're open especially to long-term cooperation and, ideally, we'd like to have you on board for the years to come.

If you are passionate about what you do, always willing to learn something new and you're not afraid of challenges, Digital Colliers is the right place for you.

Your responsibilities

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

  • Greenfield project built from the ground up

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

  • Striving for superior quality

  • Taking part in daily standups, team meetings, and team discussions

  • Work in a modern collaborative development environment

  • Working in an international team in an English-speaking environment (proficient English is a must)

Our requirements

  • 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!

This is how we organize our work

Team size

  • 20-30

This is how we work

  • in house
  • at the client's site
  • you focus on a single project at a time
  • you have influence on the choice of tools and technologies
  • you have influence on the technological solutions applied
  • you have influence on the product
  • you develop the code "from scratch"
  • you focus on product development
  • agile
  • scrum

Team members

  • backend developer
  • frontend developer
  • technical leader
  • architect
  • automated test programmer
  • manual tester
  • cybersecurity specialist
  • product owner
  • project manager
  • scrum master
  • graphic designer
  • UI designer
  • UX designer
  • UX researcher
  • business analyst

This is how we work on a project

  • Clean Code

  • code quality measures

  • code review

  • pair programming

  • TDD

  • architect / technical leader support

  • team-level deployment

  • documentation

  • issue tracking tools

  • functional tests

  • integration tests

  • test automation

  • unit tests

  • manual tests

Development opportunities we offer

  • assistance in preparation to public speeches

  • conferences abroad

  • conferences in Poland

  • development budget

  • external training

  • mentoring

  • support of IT events

  • the company supports open source projects

  • time for development of your ideas

What we offer

  • Stable and long-term cooperation

  • Work in a flat-structure company with a young team and casual atmosphere

  • Work in an international team in the spirit of Agile

  • The ability to demonstrate one's own initiative and discuss proposed ideas

  • Work in our office in the very main square in Cracow or fully-remotely

  • Flexible full-time working hours with respect to your work-life balance

  • Brand new MacBook Pro 13" at your disposal

  • 20 days of paid vacation on B2B and UZ

  • Private healthcare insurance

  • Multisport card

  • Subsidized language courses

  • Company events (integration trips etc.)

  • Company merch

  • Benefits

  • sharing the costs of sports activities

  • private medical care

  • sharing the costs of foreign language classes

  • remote work opportunities

  • flexible working time

  • fruits

  • integration events

  • dental care

  • computer available for private use

  • fuel allowance

  • no dress code

  • coffee / tea

  • drinks

  • parking space for employees

  • extra social benefits

  • christmas gifts

  • birthday celebration

  • employee referral program

  • charity initiatives

Recruitment stages

Interview with Recruiter (30 minutes)


Task with 5 days Deadline


Technical Call (1 hour)




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 are currently looking for a Senior Backend Developer to join a project that we develop for our client from Germany.

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