Unity Developer

Unity Developer (Part-Time Contract) — WebGL Build Optimisation

Engagement: Part-time, contract / freelance

Location: Remote/Hybrid

Duration: 1-2 month, renewable

About the role We're a Krafton-incubated mobile game studio looking for an experienced Unity developer to optimize an existing, live title for WebGL. This is a hands-on, delivery-focused contract: the game is already live and plays well; we need someone to make the WebGL build fast, lightweight, and stable enough for web distribution and instant-play contexts. You'll work directly with our core team on a defined optimization scope.

What you'll do

• Profile and optimise our existing Unity project for WebGL — load time, build size, runtime memory, and frame rate.
• Reduce initial download and time-to-playable through asset compression, texture/audio optimisation, code stripping (IL2CPP), and asset bundle / Addressables streaming.
• Tune compression (Brotli/gzip), code splitting, and memory ceilings for reliable performance on mid-tier mobile browsers and desktop.
• Diagnose and fix WebGL-specific issues: memory growth, GC spikes, shader/draw-call overhead, and browser compatibility quirks.
• Set up or refine build pipeline and CI steps for repeatable WebGL builds.
• Document changes and hand off cleanly so our team can maintain the build after the contract.

Required

• Experience with Unity games, real WebGL build experience is a must.
• Proven track record optimising load time and runtime performance — able to point to before/after numbers.
• Strong grasp of the Unity profiler, memory profiler, IL2CPP, Addressables, and asset/build settings.
• Comfortable working in an existing live codebase.

Nice to have

• Experience with instant-play / playable-ad / web-portal distribution.
• Hybrid-casual or mobile F2P background.
• WebGL2 / shader optimisation and rendering pipeline experience.