Lead Software Engineer - #1700730

Lead Backend Developer – Game Studio (Cardiff)

A growing Cardiff-based game studio is looking for a Lead Backend Developer to help shape the future of their slot game platform. With a strong track record in both land-based and online gaming, the team is focused on delivering high-performance, engaging experiences to players worldwide.

This is a great opportunity to work on real-time systems, contribute to an expanding portfolio, and be part of a highly experienced, collaborative team.

Key Responsibilities:

• Lead the development of backend systems powering modern online slot games.


• Translate game specs into structured, scalable server-side logic.


• Collaborate with frontend and backend engineers to implement and integrate new features.


• Work closely with designers and product managers to deliver features to deadline and spec.


• Mentor junior and mid-level developers, conducting code reviews and supporting growth.


• Contribute to improving internal processes and engineering standards.

Skills & Experience:

• Proven experience in a senior backend development role, ideally in games or real-time systems.


• Strong proficiency in C#, with working knowledge of C++.


• Solid understanding of random number generation and algorithm design.


• Strong mathematical background – A-Level Maths or higher preferred.


• Experience in team leadership or mentoring.


• Track record of creating scalable, maintainable, and performance-optimised code.


• Clear communicator with the ability to work cross-functionally.

Tools & Technologies:

• C#, C++


• GitLab


• Jira


• Microsoft Visual Studio


• Excel

What’s on offer:

• Autonomy in how you approach technical challenges.


• Direct influence over how games are built and delivered.


• Opportunity to work on titles played by a global audience.


• Supportive team culture focused on quality and innovation.