Senior Build Tools Engineer

Join Creative Assembly and craft deep and detailed games that last, entertaining millions of players across the globe for decades.

The Role

Creative Assembly’s Total War Infrastructure Team is seeking a Senior Build Tools Engineer to drive technical improvements and contribute to the architecture of our build systems, toolchain, CI, and automated testing infrastructure that supports all Total War development teams.

This is a high-impact role. Your work will directly influence developer productivity, CI stability, build cadence, automation reliability, and the studio’s ability to deliver multiple large-scale projects in parallel across multiple platforms. We are looking for someone who not only delivers but also drives technical priorities, someone who can see where the platform needs to evolve and make those changes happen.

You will work closely with build engineers, tools programmers, test automation teams, IT, QA, and multiple game teams across the studio. As a senior engineer, you will be expected to lead initiatives, shape technical standards, mentor others, and act as a point of escalation for complex issues across the infrastructure space.

This is a hybrid role. We’re looking for someone who can be in the Horsham studio 1–2 days per week to collaborate closely with the team and stay connected to on-site workflows.

What you’ll be doing

On a Day-to-day Basis, You Will

• Own and drive the evolution of CA’s multi-project build pipelines, including pre-submit, post-submit, scheduled tests, console, and PC workflows.
• Define and drive improvements in CI reliability, error detection, logging standards, and quality guardrails in CI.
• Strengthen the development and reliability of deployment pipelines that deliver builds to internal teams, QA, and external platforms, ensuring consistent and repeatable releases across all target destinations.
• Design, build, and maintain backend services such as build storage infrastructure, symbol servers, archiving systems, and dashboards, ensuring they scale with studio demand.
• Write and review production-ready code, primarily in C++ and C#, setting expectations for quality, maintainability, and testing.
• Join the rotating weekly support responder role to triage build/test issues across all infrastructure channels.
• Establish key metrics and dashboards that surface issues early, track reliability trends, and demonstrate measurable improvement over time.
• Identify bottlenecks in hardware utilization, storage strategy, CI capacity, and build roadmap to address them.
• Support other engineers, contributing to knowledge sharing, documentation, and improved engineering practices.
• Work with the test automation team to integrate comprehensive quality gates into CI workflows, ensuring fast and actionable feedback for development teams.