Backend Developer CRITICAL FORCE / Kajaani/Helsinki

PUBLISHED: September 24, 2021

Critical Force is the creator of the successful mobile FPS title Critical Ops and one of the leading mobile shooter developers in the world. Our values are Honesty, Trust, Team Spirit, Player Centric and Learn & Grow, and they are defined and cherished by all of our employees.

Now, we are calling for you, a Backend Developer, to join our ranks to design and develop systems that will bring Critical Ops to the next level. If you are a passionate and self-driven person ready to challenge yourself and create the next level of mobile FPS gaming, we welcome you to join us!

You would become a part of our incredible Critical Ops team, filled with passionate and creative people with intense enthusiasm and knowledge.

You have at least 2 years of experience in game development and the capability to work in an international environment.

Your good command of English comes with the ability to communicate with both technical and non-technical people.

Your primary focus will be on implementing and maintaining various features and systems for the game. All this is done in close collaboration with programmers, designers, artists, and testers.


  • 2+ years of game development experience
  • Experience with Linux environments
  • Strong knowledge of PHP
  • Strong knowledge of microservice architectures
  • Strong understanding of data storage solutions and SQL
  • Strong understanding of network protocols
  • Strong debugging skills
  • Strong knowledge of software design principles and patterns
  • Released titles on major development platforms (App Store, Google Play, Steam)
  • Experience with version control (GIT) as a natural part of development cycles
  • Excellent verbal and written communication skills in English


  • Develop testable high-quality backend systems and tools for a live product
  • Utilize web frameworks and in-house technology to provide a fantastic experience to players
  • Profile, identify, and optimize performance bottlenecks
  • Collaborate with other programmers to improve technical architecture, quality, documentation, and standards
  • Work together with a multi-disciplinary team

You can also Wow us with your

  • Specialist skills that can be applied to a specific area of development
  • Web development skills
  • Knowledge of test frameworks
  • Knowledge of iOS app development tools
  • Enthusiasm for real-time multiplayer and cloud architectures
  • Pro-active and self-driven mindset


Critical Force is a Finnish game company with offices in both Kajaani and Helsinki. We are focusing on competitive multiplayer games for mobile. We strive to create games that are fun to play on both casual and competitive levels. Our flagship game is a first-person shooter Critical Ops, which has been downloaded over 100 million times worldwide and has become a trailblazer in electronic sports played on mobile devices. We all share a passion for our creations, from interns to senior developers. We pride ourselves on our friendly and focused team atmosphere.

The selected candidate can decide to work from either of our offices – in Kajaani, experiencing an international feeling with a small-town vibe next to nature – or in Helsinki – in the heart of a bustling games capital. Remote working in other places in Finland is also possible, but the ability to visit the offices from time to time will be required.


  • Opportunity to join a game studio awarded multiple times by different organizations
  • Transparent and caring company culture
  • A fast-moving work environment is driven by people with a passion for games
  • The option to work from time to time in either of our offices, in Helsinki or Kajaani
  • Good benefits, incl. comprehensive health, travel insurance, and dental care
  • Flexible working environment and autonomous teams
  • Opportunity to grow and develop into more responsible roles
Check out our other open positions as well,