Senior Performance Engineer – Real-Time Optimization

LE240 Unity Technologies ApS; København; On-site; DKK 639,000 - 959,000; Full time

Job summary

Unity Technologies ApS seeks a Senior Software Developer to tackle complex performance challenges across Unity and native platforms. You will design, implement, and optimize Adaptive Performance features, profile engine workloads, and collaborate with hardware partners to enable faster, more stable runtimes.

The role emphasizes deep C# and C++ expertise, profiling tools, and mentoring within a cross-disciplinary team; base salary is disclosed with opportunities for equity and incentives.

Qualifications

• Strong software development experience with C# and C++, including large and unfamiliar codebases.
• Deep understanding of CPU, GPU, memory, threading, and runtime performance.
• Hands-on experience with profiling and diagnostic tools such as Unity Profiler, Xcode Instruments, Perfetto, or equivalent.

Responsibilities

• Investigate CPU, GPU, memory, thermal, and runtime performance issues across Unity and supported platforms.
• Design and develop Adaptive Performance features that improve runtime stability, efficiency, and developer insights.
• Profile applications and engine workloads to identify bottlenecks and turn performance data into actionable solutions.
• Collaborate with Unity teams, platform holders, hardware partners, OEMs, and customers.
• Contribute to technical design, implementation, testing, code reviews, mentoring, and AI-assisted performance workflows.

Skills

C#

C++

Profiling

Debugging

Communication

Tools

Unity Profiler

Xcode Instruments

Perfetto

RenderDoc

Job description

Unity Technologies ApS seeks a Senior Software Developer to tackle complex performance challenges across Unity and native platforms. You will design, implement, and optimize Adaptive Performance features, profile engine workloads, and collaborate with hardware partners to enable faster, more stable runtimes.

The role emphasizes deep C# and C++ expertise, profiling tools, and mentoring within a cross-disciplinary team; base salary is disclosed with opportunities for equity and incentives.