Java Developer

ComeOn Group

Apply to this job
Katowice, Silesian Voivodeship, Poland on site Until 8/23/2026 3+ years exp First posted June 24, 2026 Last posted June 24, 2026
Job description

ComeOn Group in Short
ComeOn Group in short 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.

Location : Katowice, Poland -Hybrid

Role 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 modernization of an established, large-scale codebase through safe, well-scoped changes
  • Participate in code reviews and help uphold engineering standards within the team

 

About You:

  • 3–5 years of professional Java development experience
  • Solid understanding of Spring Boot and RESTful service design
  • Good knowledge of SQL and relational databases; exposure to NoSQL (MongoDB) is a plus
  • Comfortable working in an Agile team environment with daily collaboration across functions
  • Eager to learn, communicative, sharing knowledge, and grow as an engineer
  • Strong written and spoken English

 
Benefits
So what can you expect from ComeOn as a place of work?

  • A competitive remuneration package inc. a company bonus scheme! πŸ’°
  • Fantastic quarterly team events and weekly company events 😎
  • A one-time bonus to help you set up a comfortable workstation at home (we’re truly Hybrid!)
  • On top of our Hybrid work arrangement, up to 40 days a year to work fully remote from anywhere 🌎
  • Quarterly team events and regular company events
  • A friendly, international, curiosity-driven culture

At ComeOn, we've embraced a Hybrid Work model, giving our employees the flexibility to work some days at home. Our offices are thoughtfully designed to support this model, featuring practical workspaces for focused efforts and collaborative zones for dynamic creative exchanges. We believe in the power of collaboration to drive innovation and success. While our offices are known for their vibrant atmosphere, rest assured that our primary focus is on achieving results together. We prioritize efficiency and maintain a balance between hard work and camaraderie. When you visit our offices, expect a warm welcome and professional support. Choose ComeOn for your next career move, and experience a workplace that values productivity, teamwork, and the spirit of collaboration.

At ComeOn Group we value diversity and we take concrete action to ensure fairness in our recruitment process. We are committed to assess candidates on their merit without discriminating against any applicant for whatever reason that is protected by law. We truly value you, as you are.

Want to know more about us? Just visit our website www.comeon-group.com or any of our social media channels to take a deep dive into our culture!

LinkedIn

Instagram

Facebook

Glassdoor

 

About this role

Summary

Develop and maintain backend services using Java, Spring Boot, and databases in an Agile environment

Job title

Java Developer

Experience level

3-5 years

Minimum experience

3+ years exp

Industry

iGaming

Location requirements

Hybrid in Katowice, Poland, remote work allowed up to 40 days

Salary

Not specified

Management role

No

Skills & keywords

Required skills

JavaSpring BootRESTful servicesSQL

Preferred skills

MongoDB

Specializations

JavaSpring BootRESTful servicesSQLMongoDB
Locations

Structured locations inferred from the posting.

Katowice, Poland

Hybrid City