Pracodawca zakończył zbieranie zgłoszeń na tę ofertę

Mid Kotlin Developer


contract of mandate
10 00016 800 gross / mth.
B2B contract
10 00016 800 net (+ VAT) / mth.


Aleje Jerozolimskie 93



Technologies we use


  • Kotlin

  • Kubernetes

  • Docker

  • Rancher


  • Quarkus

  • Micronaut


  • PostgreSQL

  • NoSQL

  • MongoDB

Operating system

About the project

We are looking for Mid Kotlin Backend Developers for Stepwise, Warsaw-based Software House, who would like to join an engineering-oriented company. Currently for one of our clients from the USA we are looking for a well-skilled developer who would like to join a newly created Team.

The project is a green-field digital insights platform for company from Market Reasearch industry.

Tech Stack:

- Backend: Kotlin, Spring Boot, Confluent Kafka, Kafka Streams, Auth0, Redis, Postgres, MongoDB, Gradle, Redocly, Github Actions

- Testing: Kotest, Junit, Gatling

- Infrastructure: GCP, Terraform, Kubernetes (GKE), Helm, Docker

- Methodology: Hexagonal architecture (DDD)

Your responsibilities

  • Developing new features of the Core of the System

  • Creating Architecture Design based on workshop input

  • Developing Application from scratch

  • Participation in building Backend team for the project based on required skill set

  • Participation in the demanding Code Review process

  • Developing and improving automation of common repeatable tasks and processes

  • Working closely with Client and Stepwise to improve our software delivery process

  • Coordination of technical tasks with Frontend, Test Automation and Client team

  • Identifying bottlenecks in the process and removing them (Daily, Retro, BrainStormings)

  • Helping identifying problems in the system

Our requirements

  • Experience with Kotlin, and an interest in system architecture, caching techniques, REST APIs and data modeling.

  • Experience with modern web frameworks such as Quarkus, Micronaut

  • Experience with Kubernetes, Rancher

  • Good knowledge of Docker and Kubernetes

  • Willing to work in close cooperation with the Client

  • Experience of working in Agile projects.

  • Good knowledge of English (min. B2 level)


  • Experience with prompt engineering, e.g. ChatGPT

  • Experience working with relational databases such as Postgres and NoSQL databases such as MongoDB.

This is how we organize our work

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
  • agile
  • scrum

Team members

  • backend developer
  • technical leader
  • architect
  • data scientist
  • product owner
  • project manager

This is how we work on a project

  • code review

  • DDD

  • pair programming

  • architect / technical leader support

  • documentation

  • issue tracking tools

  • technical debt management

  • test automation

Development opportunities we offer

  • conferences in Poland

  • development budget

  • external training

  • industry-specific e-learning platforms

  • intracompany training

  • mentoring

  • soft skills training

  • substantive support from technological leaders

  • technical knowledge exchange within the company

What we offer

  • Only modern tech stack and almost no legacy code on the plate

  • A great work environment with passionate and skilled people

  • Gentle and smooth introduction to the company

  • No procedures and other corporate "beauties"

  • A flat organization with no levels of middle management between staff

  • We operate mainly in Netherlands, UK, France, Germany & Scandinavia

  • We are happy to accept remote work

  • We know what is Work-Life Balance by example

  • Free lunches, internal days celebrations and constant fun!

  • Multisport Card

  • Medical Insurance (Medicover)

  • Paid lunches (Tuesday & Thursday)

  • Integration Events (Escape Room, Board Games Evenings, Culinary Workshops)

  • Internal Development (Coaching Days, Tech Tuesdays, Certificate's Budget)

  • Free Business English classes with native speakers

  • Casual Dress Code and much more


  • 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

  • corporate library

  • no dress code

  • video games at work

  • coffee / tea

  • leisure zone

  • birthday celebration

  • employee referral program

  • charity initiatives

  • Free Lunches


Since 2016, Stepwise has been helping its clients make an intentional digital transformation to the cloud and to become a data-driven business. As a Google Cloud service partner we are providing our clients with best solutions suited to their needs.

Scroll to the company’s profile