Ten Square Games is one of the largest Polish producers and publishers of free-to-play mobile games, which are played by 30 million users worldwide every month. The business was started out as a 3-person project in a 10-square-meter apartment in Wroclaw and quickly developed into a company with almost 250 specialists. Among over 200 titles, our biggest hits are: Fishing Clash, Let's Fish and Wild Hunt. 

We have reached a top spot in hobby games world-wide, now we are aiming to explore and innovate in casual gaming genres. In order to do that we are currently opening a brand new autonomous studio in Warsaw and building a core team of experienced and crazy talented people interested in working on the next big thing! 

You will join a self-organizing, creative team of highly experienced and crazy talented experts, who contribute actively with ideas and together shape product vision. You will take full ownership of your role and become a part of a small, high performing team, working in a safe and friendly environment, with a collaborative and result-oriented mindset. 

We are looking for:

Game Server Engineer
Workplace: Warszawa


As a Server Engineer, you will become our partner in developing the new studio and GENRE-DEFINING GAME

In order to make sure that our players get the best, most uninterrupted experience possible we need an experienced Server Engineer to hop on board and set the direction of the backend development in the studio.

A person who’s confident with expressing opinions that help to determine the future of the product. Someone who would draw conclusions from things that went wrong so that the team would benefit in the future, knowing how to overcome obstacles and be better prepared for any unexpected turn of events. We’re humble at TSG, so it’s fantastic if you are, too. Oh, and pragmatism is of paramount importance to us. Interested? Come and join us!


  • architecting the server-side of our new games;
  • leading the distribution and upkeep of new games highly-scalable backends through maintenance and design;
  • troubleshooting and monitoring high-volume database systems;
  • prototyping and bringing up to life the new game ideas;
  • collaborating with a cross-functional team to achieve the best possible quality of our products;
  • actively contributing towards the best practice of reliability and availability;
  • providing technical leadership in back-end technologies and acting as a resource for the studio.


  • 5+ years of experience in server-side Java programming along with concurrency handling and distributed systems;
  • strong exposure to game development;
  • good knowledge of algorithms and data structures;
  • demonstrate solid Linux shell experience along with scripting languages;
  • able to think on your feet and don’t shy away from working under pressure as our aim is to minimize downtime in games, so you’ll be expected to respond and troubleshoot a range of issues accompanying the production environment;
  • highly-committed and passionate about getting things done autonomously;
  • willingness to work as part of a team and having an open-minded attitude towards your colleagues and their work;
  • clear and open communication on the needs, wants and ideas;
  • hands-on approach;
  • true passion for games;
  • very good command of English and willingness to work in an international environment. 


  • experience in Redis and/or PostgreSQL database;
  • knowledge of data serialization in client-server communication.


  • Direct impact on the final product
    and business direction.
  • Autonomy mode and freedom
    of making partnership decisions.
  • A friendly and mature
    working atmosphere.


  • Safe environment and setting that
    boost your EXP points and skills.
  • Communities of practice and educational books of your choice.
  • Conferences and themed events.


  • Working hardware matters
    – win or mac – take your pick.
  • Attractive remuneration based
    on experience and skills.
  • Award-winning office space
    in the center of Warsaw.


  • Private medical care, a life insurance
    program and a Multisport card.
  • Free lunch days, fresh fruits,
    refreshments in the office.
  • Assistance in relocation for you and your family and a relocation package.







Our high scores:

  • 30 million users worldwide every month.
  • 280 million game downloads.
  • One of the TOP 3 best earning companies
    listed in Polish GameDev.
  • Our brightest star – Fishing Clash – is among
    the 70 highest paid apps on Google Play.
  • 8 various gaming projects (form hobby
    to casual feminine games) under simultaneous
  • 2 game studios in Wrocław and Warsaw.
  • Consolidated revenue amounted
    to PLN 241 million last year.