Senior JavaScript Game Server Developer for iGaming project

Our partner is a provider of superior online gaming solutions for iGaming operators. The company today is one of the industry’s most respected and acclaimed suppliers. The company has embarked on a rapid growth trajectory enabled by a strong corporate culture focused on innovation, creativity, quality, and technology leadership. They are looking for a Senior JavaScript Game Server Developer to join its team in Poland, Kraków. Check out the full description below.

Senior JavaScript Game Server Developer: About this position

The company is looking for a Senior JavaScript Game Server Developer. You will be part of a kick-ass, cross-functional agile team, consisting of Developers, Mathematicians, and Testers led by an experienced Development Manager.

Your task will be to build high-quality code to create a beautiful Front End for games with intuitive and exciting gameplay. Your mindset, knowledge, and experience will be crucial, and you will be able to make a real impact on the final shape of the products. The company is already known for its superb quality and focus on details, but they would like to push these qualities even further as they stretch the latest mobile and browser technology to the max.

Location: Kraków (Poland).

Senior JavaScript Game Server Developer: main objectives

  • Write high quality, well-optimized, clean JavaScript/TypeScript code;
  • Actively participate in the Game Development process to create the best games on the market;
  • Closely cooperate with other team members: Developers, Mathematicians, Testers;
  • Push visual layers to the limits by creating pleasant-looking animations and effects;
  • Share engineering knowledge across the team and follow engineering good practices;
  • Maintain and develop and create new unique functionalities of our internal platform.

What are the main requirements for a JavaScript Game Server Developer:

  • 4-5+ years of experience with JavaScript or TypeScript;
  • Knowledge of OOP and Design Patterns;
  • Ability to write clean code which is easy to maintain;
  • Have an eye for detail and an intuition for tasteful, elegant, smooth visual effects;
  • Hands-on experience with any Version Control System (i.e. Git, SVN, Perforce, or Mercurial);
  • Background in game development, visually rich applications, or the advertisement industry;
  • Communicative English (both written and spoken), around B2.

Nice to have, not obligatory:

  • Knowledge of any other OO language;
  • Experience with libraries such as Pixi.js, Easel.js, or TweenMax;
  • Familiarity with Git and feature branching approach;
  • Knowledge of Canvas or WebGL;
  • Understanding of Unit Testing and TDD;
  • At least basic knowledge of modern HTML and CSS.

What is in it for you?

  • Salary: up to 20-23000 PLN gross on the perm contract (UoP) with 80% copyright costs OR up to 160 PLN/hour on B2B;
  • Flexible working hours with the possibility of remote/hybrid work;
  • The company provides hardware and training for your self-development and smooth implementation into the project;
  • Health insurance and MultiSport package;
  • Snacks within the office;
  • Relocation package if that is required;
  • Career progression opportunity within the company.

Recruitment process (approximately 2 weeks long)

After an online interview on phone with Close Europe recruiters to discuss this position and talk about your experience (30 minutes):

  1. You will receive a task consist of 2 parts: logical testing and personality testing (1 hour total);
  2. Online interview with someone from the technical team (around 1-1,5 hours).

After finishing the interview process you receive an offer letter and, in of acceptance, the company will be glad to welcome you on board!

The Next Step for you:

If that opportunity sounds attractive to you, please forward your CV to Close Europe IT Recruitment at

By submitting the application, you consent to the processing of your personal data by Vladyslav Muzhylivskyi operating under the business name Vladyslav Muzhylivskyi Close Europe with its registered office in Krakow (Tax ID 6751522794) for the recruitment purposes. You also consent to the processing of your personal data contained in the recruitment application submitted by you to Vladyslav Muzhylivskyi operating under the business name Vladyslav Muzhylivskyi Close Europe with its registered office in Krakow (Tax ID 6751522794), for the purposes of future recruitment processes, but not longer than for a period of 2 years from the date of granting this consent.

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