Senior HTML5 Game Developer

Accountabilities Translate game design documents (GDDs) into fully functional HTML5 game experiences, breaking down features into manageable development tasks and project tickets.

Develop and implement game features using TypeScript while maintaining clean, well-structured, documented, and maintainable code.

Apply JavaScript (ECMAScript) when required, ensuring proper documentation and adherence to coding standards.

Manage source code through Git workflows, including regular commits, feature branches, merge requests, and collaboration with reviewers.

Integrate visual and audio elements such as animations, image sequences, particles, and interactive assets using rendering libraries like PIXI.js.

Collaborate with technical artists to optimize assets and ensure smooth game performance across platforms.

Monitor and improve application performance by analyzing FPS, memory usage, CPU/GPU consumption, and rendering efficiency.

Maintain strong code quality through testing practices, bug fixing, optimization, and removal of unnecessary code.

Build and optimize production-ready game packages using tools such as Webpack and support efficient deployment processes through CI/CD workflows.

Ensure games are optimized for modern web technologies, including HTTP protocols, WebSockets, and other communication standards.

Partner closely with Game Producers, Art Directors, Product Owners, and QA teams throughout the development lifecycle.

Support structured release milestones, ensuring games meet requirements from early functional versions through final QA-ready builds.

Requirements

Minimum 3 years of professional game development experience, with at least 5 years of overall software development experience.

Strong expertise in TypeScript, JavaScript (ES6), HTML5, and CSS3.

Proven experience with HTML5 game frameworks such as PIXI.js, Phaser, or similar technologies.

Solid understanding of frontend development principles, browser performance optimization, and graphics rendering.

Experience implementing animations, including Spine animations and asset optimization techniques.

Familiarity with Git, GitLab, JIRA, or equivalent project management and issue-tracking tools.

Ability to write secure, reliable, and well-tested code following development best practices.

Strong English communication skills, both written and spoken.

Excellent collaboration, problem-solving, multitasking, and attention-to-detail abilities.

Experience with WebGL or other graphics programming APIs is considered a plus.

Previous experience with casino slot games, creativity, or knowledge of statically typed programming languages is advantageous.

Benefits

Competitive compensation package.

Full-time opportunity with long-term freelance engagement options for contractors working within the Central European Time Zone (+/- 2 hours).

100% remote-first working environment with flexibility and autonomy.

Opportunity to contribute to innovative gaming products released on a frequent development cycle.

Career growth opportunities and continuous learning support.

Knowledge-sharing culture surrounded by experienced industry professionals.

Dynamic and collaborative team environment.

Family-friendly policies.

Access to social events and team-building activities.

Dog-friendly office locations available for those working from office spaces.

How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best!  Why Apply Through Jobgether? 

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