Currency

Java Developer

Java

Java Developer

Java

Generała Romualda Traugutta 45, Wrocław

Ten Square Games

Full-time
Any
Mid
Hybrid

Tech stack

    Polish

    B2

    English

    B2

    Redis

    regular

    PostgreSQL

    regular

    Protocol Buffers

    regular

    Maven

    regular

    Jenkins

    regular

    Git

    regular

    Java

    regular

    Netty

    nice to have

    Python 3

    nice to have

    playfab

    nice to have

Job description

Hybrid model: 3 days a week in the Wroclaw office


About us

Hi, we are Ten Square Games, and we live games! No, not a typo - but a level up from loving! We are on a mission of giving players excellent outdoor experiences on their mobiles. With global hits, such as Fishing Clash, we know how to make the best of technology, fun, and fair play. With 77 million registered players in 2024 and 300+ people on board, we keep growing and learning, having the insatiable hunger for the next success. If you also like to explore the unknown and know how to own it, we want to work with you!


If you want to read our full story you can find it here.


What is this job all about?

Are you a skilled Java Developer looking to make an impact in the gaming industry? Join us and contribute to maintaining and growing our portfolio of successful live games. You’ll be responsible for developing new features, improving backend systems, and ensuring stable, high-quality player experiences using Java.


What will you be doing?

  • Implementing new functionalities in the game;

  • Maintaining and optimizing the app;

  • Technical support for game designers in designing new functionalities;

  • Collaborating with other developers and teams to deliver high-quality game features.


What are we looking for?

  • Minimum 2 years of experience as a Java Developer, preferably in a project with high traffic and live operations;

  • Good knowledge of Java;

  • Good understanding of algorithms and data structures;

  • Knowledge of GIT version control system;

  • Experience in the development of scalable server applications;

  • Experience working with PlayFab services or other live ops / backend-as-a-service platforms would be a strong plus;

  • Familiarity with game backend systems, event-driven architectures, and real-time player data handling is a plus;

  • Experience in Redis, PostgreSQL, Protocol Buffers, Jenkins, Maven, Python 3, and Netty would be a plus;

  • Ability to work closely with game teams to design and implement backend features supporting new content, events, and player engagement systems.


We know fitting all our criteria might be hard, as they describe the perfect candidate. However, we know nobody's perfect, so even if you don't fulfill one or two requirements, please apply anyway! We want to get to know you and see if you fit the bill.


What do we offer in return?

We believe that work is much more than the benefits that you receive, although we have quite a few of those:

  • Clear career path & internal mobility;

  • Tailored language lessons;

  • Individual and team training budget;

  • Relocation package;

  • Choice of hardware - win or mac – take your pick;

  • Stay in the game - program for moms;

  • Free breakfast;

  • Concierge service - to make your life easier;

  • In-office massage;

  • Psychological support;

  • Worksmile cafeteria of benefits - individual fit;

  • CSR impact activities.


At Ten Square Games, sustainability is at the heart of how we play.

We’re not just here to make games – we’re here to make a difference. From inspiring climate awareness among players to supporting nonprofits and putting actions that mitigate our climate impact into place, we’re all in. We’ve built an inclusive workspace where every voice counts, bringing fresh ideas to the table and shaping the future of gaming for all. With a merit-based recruitment approach, we welcome everyone ready to help us level up.

Dive into exciting projects, make an impact, and be part of the future with us!

Tech stack

    Polish

    B2

    English

    B2

    Redis

    regular

    PostgreSQL

    regular

    Protocol Buffers

    regular

    Maven

    regular

    Jenkins

    regular

    Git

    regular

    Java

    regular

    Netty

    nice to have

    Python 3

    nice to have

    playfab

    nice to have

Office location

Published: 17.10.2025

Java Developer

Summary of the offer

Java Developer

Generała Romualda Traugutta 45, Wrocław

Ten Square Games

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