Senior HTML5 Game Developer

Booming Games; Town of Montana (WI); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

We’re a 100% remote-first company, 200

Competitive package

Dog friendly offices in Berlin and MAL

Job summary

Booming Games is seeking a skilled Frontend Game Developer to join our 14-person development crew, reporting to the Team Lead Frontend Games. You will translate GDDs into HTML5 game presentations and implement features using TypeScript, with PixiJS/Phaser for rendering.

Collaboration with Game Producers, Art Directors, and QA ensures smooth, production-ready builds. We value clean, well-documented code, security, and efficient asset integration.

Qualifications

• At least 3 years of Game Development experience and 5 years overall development.
• Fluent in Typescript and Javascript (ES6) and HTML5/CSS3.
• Highly experienced with PixiJS, Phaser, or equivalent.
• Complete fluency in English, written and spoken.
• Strong communication and teamwork skills.
• Experienced with Git, JIRA (or equivalent Issue / Project tracking software), and GSuite.
• Attention to detail, problem-solving, and multitasking skills.
• Experience with Spine animations, including optimisation.

Responsibilities

• Translate game design documents (GDD) into HTML5 game presentations.
• Break down GDD features into a Work Breakdown Structure (WBS) and create JIRA tickets.
• Ensure tasks are manageable within a maximum of one workweek and align with team estimates.
• Implement game features and functionality using TypeScript (latest standard).
• Follow best practices, ensuring well-typed and well-documented code.
• Use JavaScript (ECMAScript) only when necessary, documented with JSDoc.
• Integrate static art, animations (Spine), image sequences, and particles.
• Use libraries like PIXI.js for optimal rendering performance.
• Collaborate with Tech Art to optimise assets for efficient implementation.
• Ensure code adheres to Secure Development Principles.
• Utilise Webpack for efficient bundling, minification, and optimisation.
• Understand and enhance GitLab CI for efficient deployment.
• Ensure games are optimised for HTTP/HTTP2/HTTP3, WebSockets, and other network communications to enhance player experience.
• Work closely with Game Producers, Art Directors, and QA to ensure smooth development.
• Conduct game demos for Product Owners.
• Address QA-reported defects with highest urgency.
• Follow milestones: Alpha, Beta.

Skills

TypeScript

JavaScript (ES6)

HTML5

CSS3

English

Communication

Tools

PixiJS

Phaser

GitLab

JIRA

Webpack

Spine

Job description

About The Role

You will complete our Game Development crew of 14 lovely and skilled people and report to the Team Lead Frontend Games. Your passion for online casino games combined with your technical knowledge allows us to bring the best slots to the market.

Responsibilities

• Game Development & Implementation
  • Translate game design documents (GDD) into HTML5 game presentations.
  • Break down GDD features into a Work Breakdown Structure (WBS) and create JIRA tickets.
  • Ensure tasks are manageable within a maximum of one workweek and align with team estimates.
  • Implement game features and functionality using TypeScript (latest standard).
  • Follow best practices, ensuring well-typed and well-documented code.
  • Use JavaScript (ECMAScript) only when necessary, documented with JSDoc.
• Version Control & Code Management
  • Work with Git (GitLab as the central repository).
  • Commit code at least once per working day to feature branches.
  • Follow semantic commit conventions, including (JIRA or similair) ticket ID.
  • Submit merge requests (MR) when work is completed and defect‑free.
  • Address feedback from MR reviewers and elevate disputes to the Architect or Engineering Manager if needed.
  • Ensure code adheres to Secure Development Principles.
• Visual & Audio Effects Implementation
  • Integrate static art, animations (Spine), image sequences, and particles.
  • Use libraries like PIXI.js for optimal rendering performance.
  • Collaborate with Tech Art to optimise assets for efficient implementation.
• Code Quality & Optimization
  • Ensure clean, well-documented, and tested code.
  • Use browser developer tools to track FPS, memory, CPU/GPU usage, and draw calls.
  • Prioritise and fix bugs with utmost urgency.
  • Maintain unit and integration test coverage, ensuring communicated line coverage is not reduced.
  • Remove dead code and optimise project assets.
• Game Code Building & Delivery
  • Utilise Webpack for efficient bundling, minification, and optimisation.
  • Optimise images, text, and assets for a production-ready build.
  • Understand and enhance GitLab CI for efficient deployment.
  • Ensure games are optimised for HTTP/HTTP2/HTTP3, WebSockets, and other network communications to enhance player experience.
• Collaboration & Development Process
  • Work closely with Game Producers, Art Directors, and QA to ensure smooth development.
  • Conduct game demos for Product Owners.
  • Address QA-reported defects with highest urgency.
  • Follow structured development milestones:
    • Alpha – Game functions as per specification (even if assets are incomplete).
    • Beta – Full asset implementation; game ready for QA testing.

Requirements

• At least 3 years of Game Development experience and 5 years overall development
• Fluent in Typescript and Javascript (ES6) and HTML5/CSS3
• Highly experienced with PixiJS, Phaser, or equivalent
• Complete fluency in English, written and spoken
• Strong communication and teamwork skills
• Experienced with Git, JIRA (or equivalent Issue / Project tracking software), and GSuite
• Attention to detail, problem-solving, and multitasking skills
• Experience with Spine animations, including optimisation

Nice to have

• Experience with WebGL or other graphics programming API.
• Casino slot player.
• Creativity.
• Background in statically typed languages.

Good to know

• This full-time position is on an indefinite freelance basis for contractors within the Central European Timezone +/-2.

Why Work for Booming Games

Founder led. Impact driven. Employee centric.

At Booming Games, we’re reshaping the iGaming world with our remote-first approach. Our rhythm? Thrilling slot games with captivating features and stunning designs released every two weeks - no exceptions! Here, it’s all about co‑ownership and real growth. Dive into a diverse team where your input powers every game we craft!

Our perks

• We’re a 100% remote-first company, offering a best-in-class remote experience
• Competitive package
• Dog friendly offices in Berlin and Malta
• Family friendly policies
• Career growth opportunities
• Zestful working environment
• Knowledge sharing opportunities
• Dynamic culture surrounded by industry experts
• Company social events for team bonding

Contact

Recruiting Team

About Us

BOOMING GAMES has evolved from a shared vision into a leading slot provider, delivering exhilarating mobile and web-based games. Our drive for innovation shapes an extraordinary gaming experience featuring top‑notch gameplay, stunning graphics, and a steadfast commitment to fair and responsible gaming. Join us on this thrilling adventure, where each game we create is not just a product but a captivating journey blending cutting‑edge technology with boundless excitement.