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I'm an immersive technology developer with 8+ years of experience building Unity and C# solutions across full-stack development, immersive system design, spatial computing, and AI-powered simulation platforms. I've led innovations backed by Amazon, HYBE, and Sony, securing $300K+ in funding and achieving 14% to 60% efficiency gains during unit-testing and prototyping cycles. I excel at documenting build processes, version control, and debugging, and I collaborate across design, engineering, and stakeholder teams to deliver accessible, high-quality solutions that meet client needs.…I'm an immersive technology developer with 8+ years of experience building Unity and C# solutions across full-stack development, immersive system design, spatial computing, and AI-powered simulation platforms. I've led innovations backed by Amazon, HYBE, and Sony, securing $300K+ in funding and achieving 14% to 60% efficiency gains during unit-testing and prototyping cycles. I excel at documenting build processes, version control, and debugging, and I collaborate across design, engineering, and stakeholder teams to deliver accessible, high-quality solutions that meet client needs.

Siem Sium

Game Developer, Full Stack Developer, Back-End Developer, +3

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I'm an immersive technology developer with 8+ years of experience building Unity and C# solutions across full-stack development, immersive system design, spatial computing, and AI-powered simulation platforms. I've led innovations backed by Amazon, HYBE, and Sony, securing $300K+ in funding and achieving 14% to 60% efficiency gains during unit-testing and prototyping cycles. I excel at documenting build processes, version control, and debugging, and I collaborate across design, engineering, and stakeholder teams to deliver accessible, high-quality solutions that meet client needs.…I'm an immersive technology developer with 8+ years of experience building Unity and C# solutions across full-stack development, immersive system design, spatial computing, and AI-powered simulation platforms. I've led innovations backed by Amazon, HYBE, and Sony, securing $300K+ in funding and achieving 14% to 60% efficiency gains during unit-testing and prototyping cycles. I excel at documenting build processes, version control, and debugging, and I collaborate across design, engineering, and stakeholder teams to deliver accessible, high-quality solutions that meet client needs.

Available to hire

I’m an immersive technology developer with 8+ years of experience building Unity and C# solutions across full-stack development, immersive system design, spatial computing, and AI-powered simulation platforms.

I’ve led innovations backed by Amazon, HYBE, and Sony, securing $300K+ in funding and achieving 14% to 60% efficiency gains during unit-testing and prototyping cycles. I excel at documenting build processes, version control, and debugging, and I collaborate across design, engineering, and stakeholder teams to deliver accessible, high-quality solutions that meet client needs.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Mentor / Unity Engineer at United States Patent and Trademark Office

May 1, 2017 - September 8, 2025

Led seminars on immersive technology and fundamentals of entrepreneurship. Collaborated with neighboring universities to offer bespoke white-glove guidance for incoming clients.

Cloud Engineer at Howard College of Medicine

May 1, 2020 - September 8, 2025

Implemented analytical tools in Unity, HTML, CSS, JavaScript (Angular) with AWS-powered diagnostics used by 50+ medical students, including real-time voice interactions and smart speaker integrations.

Software Engineer (VR R&D) at National Science Foundation / George Mason University

June 1, 2021 - September 8, 2025

Developed C# backends and HTML/CSS/JavaScript (Node.js) with procedural generation logic and sensor-aware feedback for MR storytelling. Co-authored an IEEE award-winning study on adaptive educational experiences in virtual reality.

Product Officer / Platform Engineer at Techstars LA / Solace Vision

August 1, 2024 - September 8, 2025

Partnered with Unity Software to co-develop a front-facing HTML/CSS/JS site using AI-assisted XR utilities, accelerating rapid prototyping by 60% for immersive content creators. Raised $300K+ in pre-seed funding from major entertainment stakeholders including Warner, HYBE, and Sony Music.

Senior Unity Developer at NDA Contractor

August 1, 2024 - Present

Contract work focusing on designing and implementing immersive technology pipelines, front-end and back-end integration, and cross-platform VR/AR content.

Senior Unity Developer at Sultani Investments

August 1, 2024 - September 8, 2025

Improved database calls and garbage collection by 15–30% for mobile and computer-vision tools. Integrated third-party APIs for HTML and Python front ends, reducing project errors by 10–40%.

Researcher at University of Southern California

January 1, 2023 - Present

Held strategic seminars with world-leading researchers in storytelling design, transcultural fandoms, and transmedia studies. Introduced teams to immersive and interactive tech, consulting on methodologies for production and development.

Senior Unity Developer at U.S. National Trust / Holoterra

January 1, 2025 - Present

Collaborated with team, clients, and vendor partners to engineer immersive technology for augmented reality experiences along walkways through Oklahoma's commercial districts.

Senior Unity Developer at U.S. National Trust / Holoterra

January 1, 2025 - Present

Collaborated with team, clients, and vendor partners to engineer immersive technology for a series of augmented reality experiences along Oklahoma's commercial districts; contributed to unit testing and prototyping workflows and AI-powered cinematic/interactive AR experiences.

Senior Unity Developer at N.D. Contractor

August 1, 2024 - Present

Implemented design and content guidelines for AI-integrations in Git repositories for training and entertainment projects; optimized art assets and C# backend systems for 5–10% performance gains on mobile and VR devices.

Senior Unity Developer at Sultani Investments

August 31, 2024 - September 8, 2025

Improved database calls and garbage collection by 15–30% for tools in mobile and computer vision technologies; integrated third-party APIs for HTML and Python frontend, reducing project errors by 10–40%.

Researcher at University of Southern California

January 1, 2023 - Present

Hosted strategic seminars with leading researchers in story-telling design, transcultural fandoms, and transmedia studies; introduced teams to immersive and interactive technology and consulted on methodologies for production and development.

Product Officer / Platform Engineer at Tech Stars LA, Solace Vision

August 31, 2024 - September 8, 2025

Partnered with Unity Software to co-develop a front-facing HTML/CSS/JS website using AI-assisted XR utilities, accelerating rapid prototyping by ~60% for immersive content creators; raised $300K+ in pre-seed funding from major entertainment stakeholders including Warner, HYBE, and Sony Music.

Software Engineer (VR R&D) at National Science Foundation / George Mason University

June 30, 2021 - September 8, 2025

Developed C# backends and HTML, CSS, JavaScript (Node.js) with procedural generation logic and sensor-aware feedback for mixed reality storytelling; contributed to an IEEE-award-winning study on adaptive educational experiences in virtual reality.

Cloud Engineer at Howard College of Medicine

May 31, 2020 - September 8, 2025

Implemented analytics tools in Unity, HTML, CSS, JavaScript (Angular) with AWS-powered diagnostics used by 50+ medical students; integrated real-time voice interaction, smart speaker interfaces, and AI-assisted simulations; contributed to early adoption of voice-assisted simulations and VR in medical education.

Mentor / Unity Engineer at United States Patent Office

May 31, 2017 - September 8, 2025

Led seminars on immersive technology and entrepreneurship; collaborated with neighboring universities to offer bespoke guidance for incoming clients.