Develop and implement HTML5 casino slot games from GDDs using TypeScript, PixiJS/Phaser and Spine. Create JIRA tickets, commit to GitLab, optimize performance, maintain tests and CI, collaborate with art, QA and producers, and deliver production-ready builds.
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 escalate 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 optimize assets for efficient implementation Code Quality & Optimization
* Code Quality & Optimization
* Ensure clean, well-documented, and tested code.
* Use browser developer tools to track FPS, memory, CPU/GPU usage, and draw calls.
* Prioritize and fix bugs with utmost urgenc
* Maintain unit and integration test coverage, ensuring communicated line coverage is not reduced.
* Remove dead code and optimize project assets.
* Game Code Building & Delivery
* Utilize Webpack for efficient bundling, minification, and optimizat
* Optimize images, text, and assets for a production-ready build.
* Understand and enhance GitLab CI for efficient deployment
* Ensure games are optimized 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 optimization
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
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 escalate 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 optimize assets for efficient implementation Code Quality & Optimization
* Code Quality & Optimization
* Ensure clean, well-documented, and tested code.
* Use browser developer tools to track FPS, memory, CPU/GPU usage, and draw calls.
* Prioritize and fix bugs with utmost urgenc
* Maintain unit and integration test coverage, ensuring communicated line coverage is not reduced.
* Remove dead code and optimize project assets.
* Game Code Building & Delivery
* Utilize Webpack for efficient bundling, minification, and optimizat
* Optimize images, text, and assets for a production-ready build.
* Understand and enhance GitLab CI for efficient deployment
* Ensure games are optimized 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 optimization
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
Similar Jobs
Artificial Intelligence • Cloud • Software • Infrastructure as a Service (IaaS)
Lead DigitalOcean’s product marketing strategy for its AI cloud platform. Responsibilities include developing market narratives, translating complex AI architecture into customer value, leading and scaling a product marketing team, orchestrating go-to-market launches, creating sales enablement materials, analyzing competitive differentiation, and maintaining deep empathy for technical buyers and customers.
Top Skills:
Agentic Inference CloudAutogenContainerized EnvironmentsCrewaiLanggraphModel QuantizationRag
Digital Media • Gaming • Information Technology • Software • Sports • Esports • Big Data Analytics
Build and manage relationships with high-value players through personalized communications, local events, promotions, and issue escalation. Drive revenue, loyalty, and brand advocacy by understanding player needs, market trends, and gaming offerings. Gather player feedback, follow VIP and responsible gaming policies, obtain required state gaming licenses, and work collaboratively in a fast-paced environment, including nights, weekends, and travel.
Cloud • Fintech • Food • Information Technology • Software • Hospitality
Manage full-cycle, high-volume recruiting for R&D and/or G&A roles, including sourcing, application review, candidate engagement, hiring-manager partnership, pipeline development, inclusive hiring, and recruitment metrics. The role requires adapting strategies to changing business needs, navigating ambiguous hiring situations, and delivering a strong candidate and stakeholder experience.
Top Skills:
Applicant Tracking System (Ats)GreenhouseRecruitment Analytics
What you need to know about the Colorado Tech Scene
With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.
Key Facts About Colorado Tech
- Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
- Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
- Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
- Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
- Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute



