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Hi there! I'm Sadie Callaghan, a Gameplay Programmer with 3+ years of experience building immersive games and interactive apps across PC, VR, and mobile. I love crafting systemic mechanics, responsive player experiences, and writing clean, scalable code that teams can rely on. I thrive in collaborative environments and enjoy turning ambitious concepts into robust gameplay systems, collaborating with designers and SMEs to ensure accurate mechanical behavior and intuitive UX.…Hi there! I'm Sadie Callaghan, a Gameplay Programmer with 3+ years of experience building immersive games and interactive apps across PC, VR, and mobile. I love crafting systemic mechanics, responsive player experiences, and writing clean, scalable code that teams can rely on. I thrive in collaborative environments and enjoy turning ambitious concepts into robust gameplay systems, collaborating with designers and SMEs to ensure accurate mechanical behavior and intuitive UX.

Sadie Callaghan

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Hi there! I'm Sadie Callaghan, a Gameplay Programmer with 3+ years of experience building immersive games and interactive apps across PC, VR, and mobile. I love crafting systemic mechanics, responsive player experiences, and writing clean, scalable code that teams can rely on. I thrive in collaborative environments and enjoy turning ambitious concepts into robust gameplay systems, collaborating with designers and SMEs to ensure accurate mechanical behavior and intuitive UX.…Hi there! I'm Sadie Callaghan, a Gameplay Programmer with 3+ years of experience building immersive games and interactive apps across PC, VR, and mobile. I love crafting systemic mechanics, responsive player experiences, and writing clean, scalable code that teams can rely on. I thrive in collaborative environments and enjoy turning ambitious concepts into robust gameplay systems, collaborating with designers and SMEs to ensure accurate mechanical behavior and intuitive UX.

Available to hire

Hi there! I’m Sadie Callaghan, a Gameplay Programmer with 3+ years of experience building immersive games and interactive apps across PC, VR, and mobile. I love crafting systemic mechanics, responsive player experiences, and writing clean, scalable code that teams can rely on.

I thrive in collaborative environments and enjoy turning ambitious concepts into robust gameplay systems, collaborating with designers and SMEs to ensure accurate mechanical behavior and intuitive UX.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

VR Unity Developer at Illumia Labs

May 1, 2025 - Present

Developed VR training simulations, including a car engine repair module, a cable car operation system, and a surgery simulator, all built in Unity using C#. Implemented branching procedures, mechanical interactions, and tool-based gameplay using animation systems, physics, and scene flow scripting. Debugged and optimized core systems, improving stability and ensuring smooth playback on lower-end VR hardware.

Solo Unity Developer at Game Con Canada

January 1, 2024 - September 8, 2025

Designed and developed Tunnel Vision, a 3D horror game showcased at Game Con Canada.

VR Developer at Illumia Labs

May 1, 2025 - Present

Led development of a VR cable car training simulation from system design to final deployment. Built modular architecture using Unity’s XR Toolkit and custom C# scripts for precise 3D interactions. Developed a procedural training framework using state machines and event-driven systems. Integrated voice commands via speech-to-text SDKs for dynamic user feedback. Established scalable architecture patterns (singleton managers, event systems, data-driven configs). Collaborated with designers and SMEs to ensure accurate mechanical behavior and intuitive UX.

Solo Unity Developer at Game Con Canada

January 1, 2024 - Present

Designed and developed Tunnel Vision, a 3D horror game showcased at Game Con Canada. Implemented active ragdoll physics for dynamic character interactions and immersive tension. Delivered a polished prototype as the sole programmer, coordinating with partners for event showcasing.

Project Developer at Splash Quest

January 1, 2024 - October 19, 2025

Unity (2D, Android) – Rehabilitation game for hospital patients. Designed randomized obstacle levels and accessible control schemes. Implemented feedback systems supporting varying physical abilities.

Project Developer at Gravity's Edge

January 1, 2025 - October 19, 2025

Unity (3D, Co-op Puzzle) – Implemented zero-gravity physics puzzles and co-op mechanics. Developed object grabbing/throwing systems using Unity’s physics API.