Overview
Principal Graphics Engineer Location: Bengaluru, India Experience: 6-10 years (relevant) About iMerit iMerit is a global leader in AI data solutions, trusted by the world’s most innovative companies to power mission-critical AI initiatives. Our platforms, Ango Workflow Automation and 3D Point Cloud Multi-Sensor Fusion, power data pipelines for some of the world’s most advanced Autonomous Vehicle (AV), Robotics, and Mobility programs. We are building a next-generation annotation platform designed for AV and ADAS applications. It unifies large-scale data ingestion, workflow orchestration, AI-assisted annotation, and high performance visualization into a seamless, real-time web environment that handles complex multi-sensor and multi-modal data sources. About the Role We are seeking a highly skilled and motivated Principal Graphics Engineer to lead the design and optimization of a high-performance, browser-based visualization engine for multi-sensor data annotation. You will architect GPU pipelines that deliver real-time 3D rendering for LiDAR, RADAR, and video data, and drive innovation in how users visualize, edit, and validate complex 3D environments. This is a principal-level, hands-on engineering role that also influences technical strategy, design direction, and mentorship within the graphics and visualization team. Key Responsibilities Design: Architect and optimize WebGPU/WebGL rendering pipelines for large-scale point clouds and sensor-fusion visualization. Performance Optimization: Lead the optimization efforts for rendering massive 3D point clouds (millions of points) in real-time using techniques like frustum culling, level of-detail (LOD), spatial partitioning (e.g., octrees/k-d trees), and instancing. Shader Development: Design, write, and maintain high-performance, complex GLSL/WGSL shaders for both rendering and compute tasks (e.g., color mapping, depth processing, data manipulation, and custom visualization effects). API Mastery: Serve as the subject matter expert for three.js, WebGL 2.0, and the emerging WebGPU standard. Geometry Management: Expertly manipulate and optimize three.js Primitives (e.g.,BoxGeometry, Points, LineSegments) for memory efficiency and rendering speed, especially when dealing with dynamic annotation tools. Real-Time Processing: Implement on-device data processing, filtering, and transformation logic directly within the GPU compute pipeline, minimizing CPU overhead Code Quality & Architecture: Establish best practices for 3D rendering code, conduct code reviews, and mentor junior developers. Qualifications 6–10 years of experience building GPU-accelerated graphics applications around Typescript/Javascript. Proficiency in GLSL shader programming, WebGL 2.0 and WebGPU. Expert-level proficiency with three.js and extensive experience writing custom, performant rendering logic. Deep understanding of 3D mathematics, camera models, and real-time rendering pipelines. Mastery of three.js geometric primitives including efficient use of BufferGeometry, attribute buffers, and techniques for instanced rendering. Experience optimizing performance bottlenecks in CPU/GPU rendering pipelines. Strong communication and collaboration skills, with a proven ability to mentor others and influence design decisions. Additional Qualifications Experience with point-cloud libraries (Potree, Open3D, PCL). Understanding of multi-sensor data synchronization and streaming architectures. Familiarity with CI/CD pipelines and containerization (Docker, Kubernetes). Awareness of distributed systems or backend data services supporting visualization. Why Join Us? At iMerit, you will define how the world’s most advanced autonomous systems perceive and understand their surroundings. You will own the core visualization experience used by global industry leaders and push the boundaries of real-time GPU rendering in the browser. Your work will directly influence how AI engineers, annotators, and customers see and interact with data, turning complex 3D sensor streams into intuitive visual insight. Join us to build the visualization engine powering the next generation of autonomy and intelligent perception.