Front-End / Client Developer

🔒 Confidential Employer
Posted 13 January 2026
LOCATION
Sunderland, UK
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

TypeScript JavaScript Front-End Client-Side Developer Client-side performance tuning Application state management

FULL DESCRIPTION

Front-End / Client Developer

[Employer hidden — view at passion-project.co.uk] | Sunderland (Hybrid)

[Employer hidden] is urgently seeking a talented Front-End / Client Developer to join our fast-paced tech team! Are you a highly proficient developer who excels at building high-performance, scalable web applications using modern TypeScript and JavaScript who is interested in developing games within our game studio? We're looking for an engineer with strong client-side skills and a passion for creating slick, responsive user experiences, especially those that involve high-speed interactivity. We value expertise in robust client architecture and optimization.

What You'll Be Doing:

  • Client Architecture: Designing and implementing complex features for our game using cutting-edge client-side technology within our game development studio.
  • Performance Focus: Driving performance and efficiency improvements, ensuring lightning-fast load times and smooth execution across all devices.
  • Collaboration: Working closely with product, UI/UX, and back-end teams to define technical solutions and deliver world-class user interfaces.
  • Code Quality: Writing clean, well-tested, object-oriented code in TypeScript and contributing constructively to peer code reviews.

Essential Skills:

  • 💻 Web Expertise: Proven professional experience as a Front-End or Client-Side Developer.
  • ⚛️ Core Language: Expertise in TypeScript and modern JavaScript (ES6+).
  • 💡 Architecture: Strong understanding of application state management, component-based frameworks, and front-end design patterns.
  • 🚀 Optimization: Demonstrable experience in client-side performance tuning and debugging.

Nice-to-Have Skills:

  • Interest or hands-on experience with graphics rendering libraries like PixiJS, or any Canvas/WebGL technology.
  • Knowledge of GSAP, Spine, Vue, RxJS, Redux
  • 🕹️Prior experience of iGaming or building interactive games/single page applications
  • 🧠 Experience working within a fast-paced or continuous delivery (CI/CD) environment.

Apply now and apply your engineering skills to the exciting world of online entertainment!

👉 Apply Now

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