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Senior Game Developer (freelance)

Are you an ambitious senior game developer with a passion for creating engaging experiences? Do you want your work to reach millions of players worldwide? Join our team as a freelancer and apply today. Collaborate with a multinational team of developers and contribute to creating captivating casual gaming experiences for a global audience.

About the Role

You will be part of a multidisciplinary development team collaborating with game designers, game artists, quality assurance engineers, and fellow game developers. You work on developing new titles, evolving existing games, as well as contributing to the maintenance and evolving our internal tooling.

You are adept at managing your time and productivity with the goal to deliver robust code while meeting established deadlines.

Next to working on features for our games your responsibilities include optimisation, debugging, fixing bugs, performing code reviews, reviewing requirements, working on platform compatibility and ensuring our games remain stable and performant.

About you

You are proactive and thrive on taking ownership and responsibility. You write clean, readable and maintainable code. Sharing your skills and experience with the team is something you have consistently been praised for. You are open to feedback and eager to learn. You embrace collaboration and have a ”you can count on me” attitude. You flourish in an environment where teamwork and communication are important.

 

The right candidate meets most of the following requirements:

  • At least 5 years of experience programming professionally;
  • Solid knowledge of development best practices;
  • Knows how to strike a balance between speed and quality;
  • Estimations are consistently on point
  • Proactively communicates and mitigates technical risk;
  • Excellent at contributing to technical design & technical decision making;
  • Understands the commercial reality of casual games; 
  • Experience with Agile/Scrum development practices;
  • Experience with version control tools like git;
  • Experience with web game tech (e.g. PIXI/Phaser/Three.js);
  • Experience with HTML5 games, Typescript and JavaScript is a plus;

About CoolGames
Founded in 2010, CoolGames is a leading web-game-specialized studio based in the historic center of Amsterdam developing high-quality casual games. 

Games distribution via new platforms, beyond the traditional app-stores, is growing steadily. Players can now instantly start a game from within Facebook, Discord, Netflix and many other ‘Big Tech’ game channels. And we have a great relationship and close collaboration with all of them. 

In this changing landscape, where Apple and Google are no longer the sole destinations for casual gamers, CoolGames is successfully publishing high quality web games that are played by millions every month. For our studio, we have an ambitious roadmap to start the development of new game projects to further expand our portfolio for the years ahead.

Working for CoolGames

We are a company which believes it’s important to constantly improve and innovate as we strive to be the best. We work in an informal environment with enthusiastic and smart individuals from all over the world to design and create great games. We have a hybrid work schedule where we strike a balance between face to face collaboration and efficient remote work.

What You Should Know About Senior Game Developer (freelance), CoolGames

Are you a passionate and experienced Senior Game Developer looking for your next freelance opportunity? At CoolGames, you can channel your skills into creating engaging gaming experiences that reach players around the globe. Here, you’ll collaborate with a diverse team of developers, game designers, and artists to push the boundaries of casual gaming. You'll be involved in developing new titles, enhancing existing games, and improving our internal tooling. With your 5+ years of professional programming experience, you'll bring your solid knowledge of best practices in game development to the table. Your role will involve writing clean, maintainable code while ensuring our games are optimised and bug-free. We value proactive team members who take ownership and are eager to share their experiences. Your expertise in Agile/Scrum methodologies, along with your understanding of the technical design for casual games, will be critical as we navigate the evolving landscape of game distribution. At CoolGames, we celebrate innovation and adaptability, making it a great place for your next career move. Join us in creating captivating experiences for millions of players and be a part of a team that values collaboration and open communication. If you're ready to take on this exciting challenge as a Senior Game Developer, we can't wait to meet you!

Frequently Asked Questions (FAQs) for Senior Game Developer (freelance) Role at CoolGames
What are the responsibilities of a Senior Game Developer at CoolGames?

As a Senior Game Developer at CoolGames, you will work closely with a multidisciplinary team, contributing to the development of new game titles while also enhancing existing ones. Your daily responsibilities include optimising code, debugging issues, reviewing code, ensuring platform compatibility, and maintaining the performance and stability of our games.

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What qualifications do I need to become a Senior Game Developer at CoolGames?

To join CoolGames as a Senior Game Developer, you should ideally have at least 5 years of professional programming experience, along with a solid understanding of development best practices. Familiarity with Agile/Scrum, version control systems like Git, and web game technologies such as PIXI or Phaser is also highly desirable.

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What tools and technologies do Senior Game Developers at CoolGames use?

At CoolGames, Senior Game Developers predominantly utilize tools such as HTML5, JavaScript, and Typescript, alongside web gaming technologies. Experience with game engines and frameworks like PIXI and Phaser are also advantageous for building high-quality casual games.

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How does the freelance role for a Senior Game Developer at CoolGames work?

The freelance role for a Senior Game Developer at CoolGames allows you to work remotely while still collaborating closely with a dedicated team. You'll have a flexible working schedule that balances face-to-face collaboration and effective remote communication, making it ideal for innovative and proactive developers.

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What is the team culture like at CoolGames for Senior Game Developers?

CoolGames prides itself on fostering an informal, innovative, and collaborative environment for Senior Game Developers. The culture emphasizes teamwork, open communication, and a commitment to continuous improvement, ensuring that every member feels valued and motivated to contribute to exciting game projects.

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Common Interview Questions for Senior Game Developer (freelance)
Can you explain your experience with Agile/Scrum and how it applies to game development?

When asked about your experience with Agile/Scrum, share specific examples of projects where these methodologies helped improve efficiency and collaboration. Highlight your role in daily stand-ups, sprint planning, and how you adapted to feedback to deliver high-quality game features.

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What steps do you take to ensure that your code is maintainable and scalable?

To ensure maintainability and scalability, emphasize your best practices in writing clear, organized code, along with commenting and creating documentation. Discuss how you conduct code reviews and incorporate feedback from peers to enhance the overall quality of the codebase.

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Describe a challenge you faced in a previous game development project and how you resolved it.

When discussing challenges, choose an insightful experience that showcases your problem-solving skills. Explain the issue, your thought process, and the steps you took to overcome it, showcasing your ability to mitigate risks and deliver a successful solution.

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How do you approach debugging in your projects?

In your answer, outline a methodical approach to debugging, such as isolating components, using debugging tools, and testing systematically. Provide examples where your debugging efforts directly led to fixing critical issues and improving game performance.

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What is your process for collaborating with designers and artists while developing a game?

Describe your collaborative efforts with game designers and artists, emphasizing open communication and iterative feedback. Share how you incorporate their insights and ideas into development to create a cohesive and immersive gaming experience.

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Can you give an example of a game feature you've implemented that improved player engagement?

To answer this effectively, illustrate a specific feature you designed or implemented, detailing how you researched player needs, executed your ideas, and measured engagement post-launch. Use metrics to demonstrate the impact of that feature on player retention or satisfaction.

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How do you stay updated with the latest trends in game development?

To showcase your commitment to professional growth, discuss the resources you utilize to stay informed, such as industry blogs, conferences, webinars, and networking with other developers. Explain how this knowledge influences your work and innovations in game development.

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What strategies do you use to ensure code quality in your projects?

Explain your strategies for ensuring code quality, such as implementing unit tests, conducting regular code reviews, and adhering to coding standards. Emphasize the importance of quality assurance in delivering bug-free, robust gaming experiences.

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How do you handle tight deadlines while maintaining code quality?

Addressing tight deadlines can be challenging, so explain your approach to prioritizing tasks, time management techniques, and optimization strategies. Share an example where you successfully balanced speed and quality to meet a critical deadline in game development.

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What are your favorite game development tools and technologies and why do you prefer them?

Discuss the tools and technologies that you find most effective, such as specific frameworks or languages. Explain why they resonate with your development style, such as ease of use, flexibility, or community support, and highlight how they enhance your productivity as a game developer.

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CoolGames is the first specialized HTML5 casual games publishing company in the world. It publishes HTML5 games via hundreds of distribution channels across the globe, including many leading game websites and media brands. CoolGames was one of the...

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DATE POSTED
April 14, 2025

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