Unity Optimization Developer

Ironbird Creations is a development studio based in Krakow, currently working on a fast-paced, combat-oriented and fully funded action-adventure game, Phantom Hellcat.

We are looking for an experienced Unity Optimization Engineer to join our team and help us achieve the best possible performance across PC and current-generation consoles.

The ideal candidate has a deep understanding of Unity performance optimization, HDRP rendering, and console hardware limitations, with a strong focus on delivering stable frame rates, efficient memory usage, and high visual quality.

Responsibilities:

• Profile, analyze, and optimize game performance across CPU, GPU, and memory usage
• Identify and resolve performance bottlenecks, frame time spikes, FPS drops, and stuttering issues
• Optimize rendering performance in Unity HDRP, including shaders, lighting, shadows, post-processing, and volumetric effects
• Analyze and optimize shaders created with Shader Graph, Amplify Shader Editor, and HLSL
• Profile and optimize game builds directly on target hardware
• Optimize C# code, memory allocations, and garbage collection to improve runtime performance
• Analyze and optimize game assets, including textures, meshes, materials, and animations
• Adjust graphical settings and rendering budgets to meet the performance requirements of individual platforms
• Conduct performance audits of existing game systems and develop structured optimization plans
• Establish and maintain target frame rates, frame time budgets, and memory budgets across supported platforms
• Measure, document, and communicate optimization results using before-and-after performance comparisons
• Collaborate closely with Programmers, Technical Artists, and Art teams to identify and resolve performance-related issues

Our requirements:

• Strong professional experience in Unity performance profiling and optimization
• Very good knowledge of CPU, GPU, and memory profiling techniques
• Proven ability to independently identify, analyze, and eliminate performance bottlenecks
• Hands-on experience with Unity Profiler, Profile Analyzer, Memory Profiler, and Frame Debugger
• Experience profiling and optimizing standalone game builds on target hardware, rather than relying solely on Unity Editor profiling
• Strong understanding of frame time, frame pacing, FPS stability, and stuttering analysis
• Very good knowledge of Unity HDRP (High Definition Render Pipeline) and its performance optimization
• Experience analyzing and optimizing shaders using Shader Graph, Amplify Shader Editor, or HLSL
• Strong understanding of rendering costs, including draw calls, overdraw, batching, culling, LOD systems, and shadow rendering
• Experience optimizing lighting, post-processing, volumetric effects, and other performance-intensive HDRP features
• Good understanding of GPU optimization techniques and rendering performance budgets
• Very good knowledge of C# in Unity, particularly in the context of runtime performance and memory management
• Experience reducing garbage collection, memory allocations, and CPU spikes
• Practical knowledge of asset optimization, including textures, meshes, materials, and animations
• Ability to diagnose and resolve memory usage and resource management issues
• Participation in the development of at least one completed or shipped console title
• Familiarity with console-specific profiling tools, including PIX and platform-specific development tools
• Proven ability to achieve and maintain target frame rates and memory budgets on consoles
• Ability to independently conduct performance audits, prioritize optimization tasks, and develop actionable improvement plans
• Strong analytical and problem-solving skills, with the ability to measure and document optimization results
• Good communication skills and ability to collaborate effectively with multidisciplinary development teams

Preferred qualifications:

• Knowledge of Unity Addressables, asset streaming, and loading time optimization
• Experience optimizing open-world games or large, complex environments
• Familiarity with dynamic resolution scaling and modern upscaling technologies such as FSR and DLSS
• Experience working on third-person action-adventure games or other visually demanding 3D titles
• Passion for games and a strong understanding of the balance between visual quality and performance

What's in it for you:

• Salary: 10000–16000 PLN DOE
• Contract: B2B / Civil Law Contract
• Flexible working hours

Remote work – we are open to fully remote candidates (CET time zone ±2h). We also have office space in Krakow if you prefer to work on-site.

Please don’t forget to include the RODO/GDPR clause in your resume :)

Please be advised that we will only contact shortlisted candidates.