Junior Game Client Developer in City of London

Push Gaming is a dynamic and innovative game development studio specialising in creating top-quality, mobile‑optimised online casino games. With a passion for gaming and a commitment to pushing boundaries, we are dedicated to delivering exceptional experiences to players worldwide.

As a Junior Game Client Developer, you will be working closely with our experienced developers and designers to learn the craft of building professional online slot games. This is an exciting opportunity to apply your foundational skills and grow rapidly.

Location: London or Warsaw (hybrid).

What you will be doing:

• Assisting in the development of games using TypeScript and PixiJS for mobile, tablet, and desktop browsers, focusing on high‑quality and cross‑device compatibility.
• Implementing smaller game components and features under the guidance of Senior Developers, such as simple animations, UI elements, and sound integration.
• Writing clean, efficient, and well‑documented code following established best practices and coding standards.
• Participating in code reviews to learn from the team and improve code quality.
• Collaborating with the QA team to identify, debug, and fix bugs and issues across different platforms and browsers.
• Learning the game development lifecycle and participating in Agile processes (Scrum).
• Working with game designers and artists to integrate game assets (graphics, animations, and sound effects) accurately into the game client.
• Focusing on continuous learning about game architecture, performance optimisation, and the iGaming industry standards.

What you’ll bring to the role:

• This is an entry‑level position, ideally suited for recent graduates or those with 1–2 years of relevant professional experience, or equivalent portfolio work.
• A strong passion for games and a genuine enthusiasm for learning game development.
• Understanding of object‑oriented programming (OOP) principles.
• Some foundational game development experience (personal projects, academic work, or previous internships are highly valued).
• Proficiency in Object‑oriented JavaScript or TypeScript (TypeScript preferred).
• Familiarity with basic software design patterns is a plus.
• Foundational understanding of Math and/or Physics as they relate to animation and game logic.
• Exposure to an HTML5 game engine like Pixi.js / Phaser.js.
• Familiarity with version control systems like Git.
• Willingness to work in an Agile Scrum environment.
• Basic familiarity with tools like Jira / ClickUp is beneficial but not required.
• Understanding of basic web technologies: HTML5 Canvas, DOM, CSS.

Why join us?

It’s a really exciting time to join Push Gaming. We’re expanding our teams to deliver some stellar work. We are passionate about creating premium quality games and will never compromise on this. The approach we take in building and strengthening our team is no different. We set out to attract and retain high performers and are committed to seeking like‑minded individuals who share our vision for excellence and quality. In turn, we offer all the tools and support to allow individuals to grow and thrive, while achieving both personal and company goals in an environment that’s built around trust, collaboration, transparency and accountability.