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Ex Machina Group

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Lead Backend Engineer (Gaming & Entertainment Projects)

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Summary

Lead a six-engineer backend team at Ex Machina Group, staying hands-on with Java/Spring Boot while evolving the in-house PlayTwo framework and architecting scalable systems for global gaming, streaming, and entertainment projects. Hybrid role based at the Amsterdam Noord (NDSM) office.

The Role

We’re looking for a Lead Backend Engineer to guide our backend team, evolve our PlayTwo framework, and deliver reliable systems for global-scale interactive projects.

This is a role for someone who wants to stay hands-on with code while also taking responsibility for team leadership, architecture, and technical direction. You’ll:

  • Develop and maintain core backend systems in Java/Spring Boot, ensuring they can handle high concurrency and peak traffic loads.
  • Lead and mentor a team of six backend engineers, reviewing code, setting best practices, and supporting their growth.
  • Evolve PlayTwo, ensuring the framework remains scalable, efficient, and ready for new client use cases.
  • Define and implement backend architecture, making choices that balance performance, reliability, and flexibility.
  • Support project delivery by scoping work, aligning with project managers, frontend developers, and infrastructure engineers to ensure timely, high-quality delivery.
  • Contribute to client conversations, explaining technical solutions and providing input during sales and scoping discussions.
  • Explore new technologies relevant to interactive media and gaming, bringing fresh ideas to future projects.

What We’re Looking For

  • 6+ years of backend development experience, including time in a lead or senior role.
  • Strong background in Java (21+), Spring Boot, MongoDB, and experience with AWS.
  • Solid understanding of NoSQL database design and optimization.
  • Experience designing and scaling distributed systems and APIs for high-concurrency, real-time use cases.
  • Proven ability to lead and mentor engineering teams, balancing leadership with hands-on coding.
  • Experience with large-scale platforms and real-time interactive systems is a strong plus.
  • Comfortable joining client calls and clearly explaining technical approaches to non-technical stakeholders.
  • Curiosity about emerging technologies (AI/LLM, cloud-native systems, real-time frameworks).

Why Join Us

  • Work on projects used by millions of people worldwide in gaming, streaming, and entertainment.
  • Take ownership of PlayTwo, the core framework behind all our client work.
  • Lead a talented backend team while continuing to code and shape architecture yourself.
  • Be part of a company where your work is visible on a global stage and reliability really matters.
  • Enjoy a hybrid work schedule with a collaborative Amsterdam office culture.

Job Types: Full-time, Permanent

Ability to commute/relocate:

  • Amsterdam Noord (NDSM): Reliably commute or planning to relocate before starting work

Experience:

  • Java (21+), Spring Boot: 6 years (Preferred)

Language:

Skills

See also

Backend jobs by country — openings, pay and top skills →

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