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 EngineeringBuild 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 SystemsDevelop 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 VisualizationBuild 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 AccuracyApply 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 OptimizationProfile 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 LeadershipWrite 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 Qualifications3–4+ 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, delegatesStrong 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 HaveExperience 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 FitHighly 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.