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Senior JavaScript Developer (Game Client)

Job Overview

Location

Essen, Indiana, USA

Job Type

Full-time

Category

Software Engineer

Date Posted

March 4, 2026

Full Job Description

đź“‹ Description

  • • Are you a seasoned Senior JavaScript Developer with a passion for crafting exceptional gaming experiences? Playson Limited is seeking a talented individual to join our dynamic Game Client Squad and contribute to the development of our cutting-edge Next Generation Game Client. This is a unique opportunity to take ownership of critical components and excel in a role that directly impacts the foundation of our game development framework.
  • • As a Senior JavaScript Developer, you will be instrumental in building our Game Client from the ground up, leveraging an event-driven architecture. Your expertise will be crucial in proactively participating in the implementation of the architecture, collaborating closely with our dedicated architects within the R&D team. This collaborative environment fosters innovation and allows you to shape the technical direction of our product.
  • • You will be tasked with tackling complex engineering challenges, providing creative and rapid solutions to intricate problems. This includes diving deep into performance analysis, identifying and resolving issues such as slow performance, GPU and rendering problems, FPS drops, and memory leakages. Your ability to debug and optimize will be paramount to ensuring a smooth and engaging player experience.
  • • A significant part of your role will involve utilizing JavaScript profilers and embedded browser developer tools to meticulously analyze application performance. This deep-dive approach will enable you to identify bottlenecks and implement selective optimizations that enhance the overall efficiency and responsiveness of the game client.
  • • Furthermore, you will have the opportunity to work with and understand vendor source codes, applying necessary fixes and improvements to ensure seamless integration and optimal functionality. This requires a keen eye for detail and a thorough understanding of how different components interact.
  • • You will also be responsible for building UI components in isolation, ensuring their reusability, maintainability, and adherence to high-quality standards. This practice promotes modularity and accelerates development cycles.
  • • The ideal candidate possesses a superb understanding of the asynchronous, single-threaded JavaScript environment and its intricate DOM event handling. You should have advanced knowledge of code patterns and anti-patterns specifically relevant to JavaScript development, enabling you to write clean, efficient, and scalable code.
  • • A proven track record of successfully building business event-driven applications from scratch using TypeScript is essential. This experience will be directly applicable to our event-driven architecture and will allow you to hit the ground running.
  • • You will also bring experience in developing sustainable production solutions, ensuring that the code you write is robust, reliable, and maintainable in a live environment. This includes a strong understanding of best practices for deployment and long-term support.
  • • Beyond technical prowess, we value individuals who can deliver results within discussed deadlines, relate positively to a wide range of people, and demonstrate strong self-motivation. As a reliable and flexible team player, you will thrive in our Agile environment, contributing to a collaborative and productive workflow.
  • • High attention to detail is crucial for this role, ensuring the quality and precision of your work. We encourage a proactive approach to process improvement, where you will be empowered to suggest alternatively better solutions and drive innovation.
  • • A strong sense of ownership and high responsibility are key attributes we seek. You should be passionate about coding, continuously learning, and eager to share your knowledge of the latest tools and technologies with the team. This role offers a fantastic opportunity to work on a high-impact product within a forward-thinking company.

Skills & Technologies

JavaScript
TypeScript
Senior
Remote

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About Playson Limited

Malta-based iGaming supplier developing online casino games, including video slots, table games and promotional tools for regulated markets. Established in 2012, the company delivers HTML5 titles integrated via single API, supports 20+ languages and 25+ currencies, and holds licenses from Malta Gaming Authority, UK Gambling Commission and others. Clients include tier-one operators across Europe and Latin America. Products emphasize math-driven mechanics, certified RNGs and responsible-gaming compliance, while back-office analytics give operators real-time data and bonus management.

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