Senior Software Engineer

The opportunity
At SpeedTree (a division of Unity Technologies), we help studios bring natural worlds to life. We build industry-leading tools and runtimes for modeling, animating, and rendering vegetation across games, film, and real-time experiences. Our technology powers artist-friendly creation, real-time performance, and seamless pipeline integration—from DCCs to game engines—so teams can ship beautiful, scalable worlds faster. At our core, we’re passionate about visuals, performance, and giving creators the tools they need to make nature believable.

We are looking for a Senior Software Engineer who shares our passion for games and visual effects. As a key member of the team, your role will include designing and implementing advanced vegetation modeling tools that empower artists and technical users, building and optimizing real-time graphics features for believable, performant foliage across platforms, and providing end-to-end support for games and VFX pipelines.

What you'll be doing

• Extend the modeling system: add new 3D modeling features, tools, and parametric controls for vegetation.
• Build GUI features: create clean, fast interfaces and widgets for modeling, materials, LODs, wind, and export.
• Improve in-app rendering: enhance real-time shading, lighting, wind, and LOD for accurate WYSIWYG previews; profile and optimize.
• Evolve the export pipeline: support more targets and formats; handle materials, LODs, instancing, collisions, impostors, and metadata; automate and validate.
• Integrate with pipelines: develop plugins/bridges for DCCs and engines; ensure consistent materials, units, and animation/wind data.
• Ensure quality: write modern C++/GPU code, add tests, document features, and review code.
• Collaborate cross-functionally: partner with artists, TDs, and integrators to gather requirements and resolve issues.
• Provide product support: manage releases, triage user reports, create guides, support sales demos, and assist marketing.
• Research and prototype: explore new modeling, simulation, and rendering techniques; take prototypes to production.
• Optimize performance and scalability: improve memory, threading, and large-scene workflows.

What we're looking for

• Strong C++ (modern C++17/20, STL, templates, debugging, profiling)
• Graphics API experience (OpenGL required; Vulkan/DirectX a plus)
• GPU programming basics (GLSL/HLSL, shaders, render pipelines, performance)
• 3D math and geometry (linear algebra, transforms, curves/surfaces, normals/UVs)
• Practical 3D modeling exposure (DCC tools, topology, materials, LODs; not an artist, but understands workflows)
• Real-time rendering fundamentals (lighting, PBR, shadows, transparency, normal/tangent spaces)
• Tool/UI development experience (Qt/ImGui or similar; custom widgets, viewport tooling)
• Cross-platform development (Windows/macOS/Linux) and build systems (CMake)
• Source control and CI (Git, code review, automated builds/tests)
• Pipeline/format familiarity (FBX/OBJ/GLTF, textures, metadata; game/VFX engine integration a plus)
• Problem solving and collaboration (work with artists/TDs, clear communication)

You might also have

• Procedural modeling or simulation
• Engine/DCC integration (Unreal/Unity/Maya/Houdini) and plugin development
• Performance optimization (CPU/GPU profiling, multithreading, memory)

Additional information

• Relocation support is not available for this position
• Work visa/immigration sponsorship is not available for this position

Benefits
At Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance.

Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status.

While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching program

Life at Unity
Unity [NYSE: U] is the leading platform to create and grow games and interactive experiences. Creators, ranging from game developers to artists, architects, automotive designers, infrastructure experts, filmmakers, and more, use Unity to bring their imaginations to life across multiple platforms, from mobile, PC, and console, to spatial computing.

As of the third quarter of 2024, more than 70% of the top 1,000 mobile games were made with Unity, and in 2024, Made with Unity applications had an average of 3.7 billion downloads per month. For more information, please visit Unity.

Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. Our differences are strengths that enable us to support the growing and evolving needs of our customers, partners, and collaborators. If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out this form to let us know.

This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.

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