Software Engineer

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