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Jobs / ComeOn Group / Java Developer - Mid Level
Posted 2026-06-24

Java Developer - Mid Level

Description

The role involves designing, developing, and maintaining backend services and integrations within a cross-functional team. You will work across a modern technology stack to contribute to the gradual modernisation of an established, large-scale codebase through safe and well-scoped changes. The position requires close collaboration with developers, QA engineers, and Product Owners throughout the full development lifecycle, while participating in code reviews to uphold high engineering standards.

Responsibilities
  • Design, develop, and maintain backend services and integrations as part of a cross-functional team.
  • Work across a modern, broad technology stack: Java, Spring Boot, Kafka, Docker, MongoDB, MySQL.
  • Collaborate with developers, QA engineers, and Product Owners throughout the full development lifecycle.
  • Contribute to gradual modernisation of an established, large-scale codebase through safe, well-scoped changes.
  • Participate in code reviews and help uphold engineering standards within the team.
Requirements
  • 3–5 years of professional Java development experience (required).
  • Solid understanding of Spring Boot and RESTful service design (required).
  • Good knowledge of SQL and relational databases (required).
  • Exposure to NoSQL (MongoDB) (nice-to-have).
  • Comfortable working in an Agile team environment with daily collaboration across functions (required).
  • Eager to learn, communicative, sharing knowledge, and grow as an engineer (required).
  • Strong written and spoken English (required).
Benefits
  • Competitive remuneration package including a company bonus scheme.
  • Fantastic quarterly team events and weekly company events.
  • One-time bonus to help set up a comfortable workstation at home.
  • Hybrid work arrangement with up to 40 days a year to work fully remote from anywhere.
  • Friendly, international, curiosity-driven culture.
About ComeOn Group

Founded in 2008, ComeOn Group is a leading global player in the rapidly growing iGaming market. Having launched its first online brand in 2010, ComeOn Group is running a wide range of exciting brands across multiple markets. Operating more than 20 brands on its proprietary platform providing a secure, innovative and entertainment-led player experience across casino and sports betting. ComeOn Group is an international employer within the iGaming industry and has over 500 talented employees across 7 main locations. So - what can you expect from ComeOn as a place of work? At ComeOn, we have adapted a Hybrid Work model which means that we offer our employees an option to pick their workstation for the day. Want to work from the office a few days a week and some days from home? That’s totally fine with us! ComeOn is known for their inviting and vibrant offices that offer creative areas for collaboration and desk set-ups designed for a Hybrid Work model. When you visit one of our offices you will always be welcomed by a friendly face that will take good care of you. It’s our curiosity that drives our innovative business forward and we work hard in a #runtogether spirit and we always make sure to top it up by #havingfun! The ComeOn Moment That moment when right before the roulette ball stops, or during when the penalty shoots out in the world cup final, when time slows down, when every heartbeat can be felt, when you think, whisper or scream ComeOn, ComeOn, ComeOn! You don’t have to be a gambler to work at ComeOn Group, but you have to understand the power of having something at stake, with the potential to win or lose. We have all experienced this, if not with money on the table, maybe it was our hearts!

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