Software Engineer - L3 (Simulation & Unreal Engine Engineer)

November 20, 2025

Software Engineer - L3 (Simulation & Unreal Engine Engineer) Location & Type: Delhi, Full-time CTC Range (LPA): 35.25 - 43.00 Role OverviewWe’re looking for a high-energy, multi-disciplinary Software Engineer (L3) with a strong foundation in C++, Unreal Engine, simulation systems, and real-time 3D technologies.This role is ideal for someone who enjoys working across VR/MR/AR, Digital Twin platforms, Streaming 3D technologies, physics-heavy simulations, and performance-critical engine code. You should be someone who thrives in fast-paced environments, loves solving complex mathematical/physics problems, and enjoys building systems that feel smooth, intelligent, and real. What You’ll Do Unreal, C++, and Core Simulation Engineering<ul><li>Build and extend simulation systems in Unreal Engine using modern C++ (UE4/UE5). </li><li>Implement real-time systems: object dynamics, events, agent simulations, world interaction logic, procedural tools.</li><li>Work deeply with physics, constraints, collisions, kinematics, rigid body systems, Chaos physics.</li></ul> XR (VR/MR/AR) & Immersive Systems<ul><li>Develop immersive interactions for OpenXR, Oculus, Vive, HoloLens/MR, and mobile AR (ARKit/ARCore). </li><li>Build intuitive 3D UI, interaction mechanics, gestures, spatial anchors, tracking, and device abstraction layers.</li></ul> Digital Twin, Streaming Tech & Real-Time Visualization <ul><li>Build digital twin environments tied to live sensor data, IoT streams, AI/ML outputs, and telemetry. </li><li>Implement real-time streaming of data, 3D states, animations, camera paths, or events into UE. </li><li>Build visualization layers: dashboards, overlays, geospatial layers, analytics in 3D.</li></ul> Physics, Math & Simulation Accuracy <ul><li>Apply strong linear algebra, calculus, vectors/matrices/quaternions, and physical modeling concepts. </li><li>Integrate advanced physics engines like NVIDIA PhysX, MuJoCo, Havok, or custom solvers (added advantage). </li><li>Build realistic simulation behavior: friction, forces, collisions, trajectories, joints, soft bodies, etc.</li></ul> Rendering + Performance Optimization <ul><li>Profile and optimize CPU/GPU workloads, memory usage, draw calls, and FPS stability. </li><li>Implement techniques such as: </li><li>Instancing, LOD systems, occlusion culling, async loading, asset streaming, multi-threading, smart GC. </li><li>Use profiling tools (Unreal Insights, RenderDoc, PIX, GPU Visualizer) to diagnose performance bottlenecks.</li></ul> Systems Design, Architecture & Engineering Leadership <ul><li>Write design documents, break complex features into modules, and propose technical strategies. </li><li>Collaborate closely with AI/ML engineers, software engineers, designers, 3D artists, and DevOps. </li><li>Mentor L0–L2 engineers through pairing, feedback, and best practices. </li><li>Own production modules, help with incidents, and drive technical improvements. </li></ul> Technical Qualifications<ul><li>3–4+ years experience in Unreal Engine (UE4/UE5) with strong modern C++ skills. </li><li>Deep understanding of:</li></ul> (a) UE Framework (b) Rendering pipeline & shader/material systems (c) Chaos physics engine (d) Multithreading, async tasks, delegates<ul><li>Strong command over mathematics (vectors, matrices, Euler/quaternions, transforms). </li><li>Hands-on with physics simulation systems (PhysX, MuJoCo, Bullet, Havok). </li><li>Experience building real-time simulation or visualization tools. </li><li>Skilled in integrating APIs, data streams, WebSockets, or telemetry pipelines. </li><li>Ability to ship across platforms: Windows, Android, XR devices. </li></ul> Nice to Have <ul><li>Experience with Digital Twins, BIM/CAD, GIS, robotics simulation. </li><li>Shader authoring (HLSL/GLSL), compute shaders, or procedural rendering. </li><li>Niagara VFX, Houdini Engine, procedural content frameworks. </li><li>Python/C# scripting for tool automation. </li><li>Knowledge of game networking, replication, multiplayer simulation sync. </li><li>Familiarity with DevOps , automated builds, Perforce workflows. </li></ul> Soft Skills & Culture Fit <ul><li>Highly curious, self-driven, and passionate about 3D, physics, and simulation engineering. </li><li>Thrives in a startup setting fast iterations, rapid prototyping, high ownership. </li><li>Excellent communication, able to collaborate across multiple engineering and creative disciplines. </li><li>Strong problem-solving mindset with attention to detail and performance.</li></ul> About the Company Griphic is founded by IIT Delhi engineers with a vision to enrich lives through technological innovation. We combine cutting-edge AI with hyper-realistic virtual experiences to solve problems and disrupt industries. Our team includes IIT Delhi engineers, AI/ML experts, VR developers, and 3D specialists. Backed by SKETS Studio (700+ professionals in BIM, architecture, VR, and 3D visualization), we are building the future of immersive web applications.

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