Senior Unity Software Engineer

Senior Unity Software Engineer

Join SEGA Europe’s Sports Interactive team as a Senior Unity Software Engineer. The role reports to the Lead Producer, works on a fully remote or hybrid basis, and focuses on architecture and scalable systems in C# and Unity for Football Manager.

We seek an experienced Senior Software Engineer with deep expertise in C# and Unity. You will design, implement, and maintain reusable systems across multiple game areas including addressables, package management, data binding, UI, and editor tooling. You will collaborate closely with design, production, QA, and other stakeholders to deliver high‑quality user experiences on desktop, console, and mobile platforms. You will mentor junior engineers, promote best practices, and shape technical foundation and player‑facing experience.

• Design, implement, and maintain complex and scalable systems and features using C# and Unity that form the technical foundation for our games.
• Contribute to the development, profiling and optimisation of our code, including using Unity’s UI Toolkit and dynamic data binding.
• Support the development of editor tooling and workflows that enhance productivity and streamline content integration across multiple disciplines including engineers, art & design.
• Own and maintain areas of our C# codebase, ensuring performance, maintainability, and cross‑platform compatibility across desktop, console, and mobile platforms.
• Collaborate with cross‑functional teams – including design, engineering, QA, and production – to deliver high‑quality user experiences and features.
• Participate in planning and roadmap discussions, contributing technical insight and helping shape feature delivery and long‑term architecture.
• Investigate and resolve complex technical challenges, including performance bottlenecks.
• Mentor junior engineers, promote best practices, and foster a culture of continuous learning and technical excellence.

• Extensive professional experience in video game development using C#.
• Deep proficiency in C# is essential, including a strong understanding of memory management, garbage collection, async programming, and performance.
• A strong experience and understanding of Unity.
• Experience with Unity’s UI Toolkit is beneficial but not essential.
• Experience developing Unity editor tooling and systems that support multi‑disciplinary teams.
• Solid understanding of software engineering principles, design patterns, and profiling and performance optimisation.
• Proven ability to write clean, maintainable, portable, performant and well‑documented code.
• Familiarity with C++ is beneficial, particularly in contexts where Unity interfaces with native modules, but not essential.
• Experience with cross‑platform development across desktop, console, and mobile environments.
• Strong analytical and problem‑solving skills, with a proactive approach to technical challenges.
• Excellent communication skills and ability to collaborate effectively across disciplines.
• Self‑motivated with a commitment to continuous improvement and team support.
• Experience mentoring junior engineers and contributing to team‑wide technical growth.
• Knowledge of Football Manager is beneficial; interest in football is a plus.

A flexible working policy to best suit you and your team. Subsidised mental health, therapy and coaching sessions are available. Contributory Pension Scheme (up to 7 % of annual salary). Free onsite evening bar in the Sports Interactive London HQ. A well‑stocked breakfast bar with cereals, fruits, teas, and coffees. Regular events in collaboration with our partnered football clubs. Access to our on‑site physical and massage therapist services.

Multiple clubs and societies to join e.g., book club and art workshops. Free access to games released under the SEGA Europe umbrella. A range of Gym Membership options through our Benefits partners. Fully subsidised Healthcare and Dental Plans. Free Travel Insurance for yourself and your family. A personalised football shirt upon passing probation.

We approach everything with passion, whether…