Senior 3D Unreal Engine Engineer (Plugin & Tools Development)

Sigmawave AI is a visual synthetic data company helping organisations build better computer vision and AI systems. We provide configurable, high-quality synthetic datasets that support model training, testing, and validation—delivered safely, efficiently, and at scale.

We are seeking a Senior 3D Unreal Engine Engineer to join our 3D & Simulation team. You will be responsible for designing, developing, and maintaining high-performance plugins and tools within Unreal Engine that power our synthetic data generation pipeline. Your work will enable scalable, artist-friendly workflows for creating high-fidelity 3D environments and assets used to train next-generation Vision AI models.

• Design, build, and maintain robust Unreal Engine plugins in C++ to extend engine functionality, automate content production, and integrate with our proprietary synthetic data platform.
• Develop and optimize Blueprint systems that empower technical artists and content creators to assemble complex scenes, configure sensors, and define scenarios without deep programming.
• Collaborate closely with 3D artists, ML engineers, and platform teams to understand pipeline bottlenecks and implement tooling that improves throughput, quality, and iteration speed.
• Architect and implement core systems for asset management, procedural placement, lighting, camera simulation, and batch rendering within Unreal.
• Write performant, well-documented, and scalable code following Unreal best practices and modern software engineering standards.
• Profile and optimize rendering and simulation performance for both real-time editor workflows and high-throughput offline rendering farms.

• 5+ years of professional experience with Unreal Engine in a production environment.
• Expert-level C++ proficiency with deep experience in Unreal's codebase, module system, and plugin architecture.
• Proven experience developing and releasing Unreal Engine plugins or tools (in-house or commercial).
• Strong fluency in Blueprints for creating user-facing tools, gameplay systems, or workflow automation.
• Solid understanding of 3D mathematics, real-time rendering, and game engine architecture.
• Experience with source control (Git, Perforce) and collaborative development workflows.
• Ability to translate artistic and technical requirements into robust engineered solutions.

• Experience releasing or maintaining a commercial plugin on the Unreal Marketplace (Fab).
• Familiarity with Python for tooling or automation outside Unreal.
• Knowledge of rendering optimization, GPU profiling, or Vulkan/DirectX12.
• Background in computer vision, synthetic data, or simulation for ML.
• Experience with 3D asset pipelines (USD, FBX, GLTF) and DCC tools (Blender, Maya, Houdini).

• High-impact role building core 3D technology for a production synthetic data platform.
• Opportunity to work on cutting-edge problems at the intersection of real-time 3D, simulation, and AI.
• Collaborative, cross-functional environment with teams in AI, 3D art, and platform engineering.
• Competitive compensation and equity package.
• Flexible hybrid/remote work arrangements.

Email [Confidential Information] with:

• Your CV/resume
• Links to your GitHub, Unreal Marketplace portfolio, or relevant project demos
• A short note describing 1–2 Unreal plugins or tools you've built and your role in their development

Email subject: Application – Senior 3D Unreal Engine Engineer (Plugin Development)

Reference: SWA-UE-PLUGIN-001