Long An

Results-driven VR / XR Software Engineer with over 2 years of hands-on experience architecting, developing, and optimizing interactive 3D, Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR) applications using Unity 3D and C#. Proven track record in shipping commercial VR games to the Meta Horizon Store, engineering AI-powered enterprise training platforms, and delivering high-risk emergency simulations and K-12 STEM educational suites. Deep technical expertise in OpenXR, Meta XR All-in-One SDK, physics-based spatial interaction systems, and standalone mobile VR performance profiling (maintaining locked 72–90 FPS on Meta Quest 2/3/3S, HTC Vive Focus 3, and HoloLens 2).

Strong foundation in OOP, Data Structures & Algorithms, and Design Patterns, collaborating effectively across Agile cross-functional teams.

VR Software Engineer - VRTech JSC - On-site

(2025-11)

• Architected, developed, and published multiple commercial VR games on the Meta Horizon Store, achieving full compliance with Meta Virtual Reality Checks (VRCs) for performance stability, comfort, and platform integration on standalone Meta Quest devices.
• Engineered modular VR gameplay and physics-driven interaction frameworks in Unity (C#), including two-handed object manipulation, custom locomotion (teleportation & smooth movement with comfort vignetting), spatial UI, and haptic feedback.
• Designed and delivered VR simulation applications for rescue, disaster response, and firefighting training, enabling trainees to practice high-risk emergency procedures and equipment handling in realistic, zero-risk virtual environments.
• Spearheaded standalone VR performance optimization on Meta Quest 2/3/3S using Unity Profiler, Frame Debugger, and OVR Metrics Tool—reducing draw calls, tuning URP shaders, optimizing memory footprint, and eliminating GC spikes to sustain a locked 72–90 FPS.

XR / MR Software Engineer - Plus Studio - On-site

(2025-06 - 2025-10)

• Developed interactive Virtual Reality (VR) and Mixed Reality (MR) educational and simulation applications using Unity 3D and C#, integrating Meta XR SDKs and MR SDKs (Passthrough, spatial mapping, and hand/controller tracking) to blend virtual content with physical spaces.
• Architected a reusable mini-game framework and delivered 8+ interactive VR/MR mini-games (physics-based fruit slicing, interactive feeding, milking, spatial quizzes, etc.) utilizing State Machines and Object Pooling to boost engagement, reflexes, and logical thinking for young users.
• Co-developed an immersive historical battlefield simulation set in Vietnam (1945), combining historical research with spatial audio, optimized 3D environment assets, and scripted narrative sequences for interactive educational exhibition.

VR Software Engineer - Digital Unicorn - Freelance

(2025-02 - 2025-05)

• Collaborated within a 15-member cross-functional Agile team to architect and develop an AI-powered enterprise VR training platform, streamlining corporate onboarding and internal training workflows.
• Integrated asynchronous Speech-to-Text (STT) and Text-to-Speech (TTS) pipelines in C# to power real-time, hands-free voice interactions and conversational AI assistant guidance inside VR training scenarios without blocking the main rendering thread.
• Built interactive 3D training environments, scenario state machines, and ergonomic spatial UI systems, optimizing audio streaming and scene rendering for smooth VR usability and immersion.

VR Software Engineer - Edmicro Education Co., Ltd. - On-site

(2024-04 - 2025-06)

• Developed and deployed 3+ production VR and interactive 3D STEM educational applications for primary and high school curricula, actively serving hundreds of learners across Math, Physics, Chemistry, Biology, and Environmental Science.
• Engineered interactive 3D model exploration and virtual lab systems (molecular structures, physics mechanics, biological anatomy) with intuitive VR grab, scale, rotate, and assembly interactions.
• Collaborated in 3–4 member cross-functional squads with 3D artists, instructional designers, and educators, optimizing asset pipelines and VR SDK integrations to ensure stable classroom deployment.

Unity 3D / XR Developer - Freelance & Independent XR Projects - Freelance / On-site

(2023 - 2024-04)

• Designed, developed, and deployed multiple real-world 3D, AR (AR Foundation, Vuforia), and VR applications using Unity 3D and C#, focusing on core gameplay mechanics, 3D/2D UI systems, and cross-platform performance optimization.
• Implemented modular player controllers, animation systems (Mecanim), physics/collision mechanics, and third-party SDK integrations while collaborating with designers and QA testers via Git and Plastic SCM.

Final-Year Undergraduate Student - Information Technology - Posts and Telecommunications Institute of Technology (PTIT) (2023-09)