Senior Client Engineer (Core Tech/Platform Engineering) - Star Trek Fleet Command

Scopely is looking for a Senior Client Engineer to join our Star Trek Fleet Command team within our Midcore division in Dublin, Barcelona, the UK or Portugal on a hybrid/remote basis.

At Scopely, we care deeply about what we do and want to inspire play every day - whether in our work environments alongside our talented colleagues or through our deep connections with our communities of players. We are a global team of game lovers who are developing, publishing and innovating the mobile games industry, connecting millions of people around the world daily.

Star Trek Fleet Command is a standout success in the gaming industry. Launched in 2018, our in-house developed 4X Strategy MMO has continually evolved, earning its place as one of the top-grossing games on the market.

What You Will Do

As a Senior Client Engineer focused on Core Tech and Platform Engineering, you’ll play a critical role in driving the technical evolution of our Unity-based client. This role goes beyond gameplay and focuses on the underlying architecture, tooling, systems, and infrastructure that power the client experience across devices and platforms.

• Lead design and development of shared client systems (e.g., asset loading, event systems, UI framework, serialisation, memory tracking, patching, performance tooling).

• Proactively identify bottlenecks and own long-term solutions to performance, stability, and scalability issues.

• Collaborate with cross-functional teams including Backend, DevOps, and QA, to improve developer workflows, build pipelines, and platform integration.

• Participate in defining and maintaining coding standards, architectural patterns, and engineering best practices across multiple teams.

• Support the Unity version upgrade process and ensure all platform integrations (Android, iOS, desktop) remain performant and stable.

• Own initiatives that increase the modularity and maintainability of the codebase.

• Mentor engineers through code reviews, design sessions, and technical deep-dives.

What We're Looking For

• 5+ years of professional experience with Unity (C#), focusing on systems engineering, tools, or platform development (not just gameplay).

• Proven experience designing and maintaining shared infrastructure, reusable components, or frameworks at scale.

• Strong debugging skills, especially in performance, memory usage, and threading/concurrency.

• Deep understanding of Unity's AssetBundle pipeline, scene loading, addressables, rendering pipeline, and lifecycle.

• Experience with cross-platform development (iOS/Android/PC) and profiling tools (e.g., Instruments, Android Profiler, Unity Profiler, etc.).

• Familiarity with CI/CD pipelines, Jenkins, Git Actions, or similar automation tools.

• Strong collaboration skills to work with cross-functional partners across product, art, and engineering.

Bonus Points

• Unity upgrade and migration experience (e.g., Unity 2021 to Unity 6).

• Experience with native plugins, Unity's Burst compiler, or Jobs system.

• Proficiency in low-level performance optimisation and memory management (e.g., GC, allocations, object pooling).

• Knowledge of Protobuf, WebSocket, gRPC, or custom networking protocols.

• Prior work on LiveOps infrastructure, experimentation platforms, or A/B testing systems.

• Familiarity with backend-client coordination for data sync, event triggers, and telemetry.

• Exposure to mobile-specific challenges: device fragmentation, patching, app store constraints.

At Scopely, we create games for everyone and we want to ensure that the people behind our games reflect that!   We are committed to creating a diverse, supportive work environment where everyone is treated with respect. We are committed to providing equal employment opportunities and welcome individuals from all backgrounds to join us & embrace the adventure!