Muck Studio / Sean McNulty

UI That Ships

UI/UX specialist designing interfaces that players use and engineers can actually build, from first wireframe to final in-engine asset.

Get in touch

Now booking for Summer 2026

Sean McNulty
Sean McNulty / Muck Studio

Showreel

Work in motion.

showreel.movplayback: ready

Embedded

Inside the build.

I'm Sean McNulty. I've spent 12+ years in game UI. I partner directly with your dev team through standups, sprint planning, Figma reviews, engine handoffs, ad-hoc feedback sessions, and regular UX/UI leadership syncs. I also work close to implementation, including Unreal Engine 5 Blueprints, UMG widgets, Rive, After Effects, and direct in-engine animation when the project needs it.

Studios

Past partners.

Services

Engagement Models.

[01]

8–12 weeks

UI Project Engagement

I embed with your team to own a defined UI initiative end-to-end — from first wireframe through to polished, in-engine assets. Scope and milestones are agreed upfront, but the timeline flexes to fit your production reality rather than an arbitrary deadline.

Good for: A vertical slice or greenlight milestone. A new feature system that needs UX through final implementation. A UI overhaul ahead of a major review or submission. Any project phase where you need a UI/UX specialist delivering production-ready work, not just concepts

[02]

3–6+ months

Embedded UI Partnership

A longer-term arrangement where I operate as your de facto UI/UX lead — attending standups, shaping direction, iterating across multiple features or updates, and helping your team ship consistently. Hours and focus shift as your priorities do.

Good for: Live-service games needing continuous UI across seasons, battle passes, and store refreshes. Multi-milestone projects where UI consistency matters across a longer arc. Studios that want UI leadership without a permanent headcount commitment.

[03]

1-4 weeks

UI Direction Sprint

A short, targeted burst to solve a specific problem or set a clear direction before a larger commitment. This might be a UI style exploration, a UX audit of an existing interface, or a rapid prototype of a critical screen — scoped tightly so you get a tangible, usable output fast.

Good for: Early-stage projects that need expert UI direction before building an internal team around it. Studios evaluating whether a longer engagement makes sense. A single screen or system that needs expert attention without a multi-month contract

Got a UI problem?

Get in touch

Screens

Shipped UI.

Proof

Receipts.

Approach

Why me.

>_

Personal. Professional.

You work directly with me, a 12-year veteran, on every deliverable. No layers, no delegation, no surprise handoffs to someone less experienced.

UE5

Engine-literate.

I can work close to implementation, including Unreal Engine 5 Blueprints, UMG widgets, engine-facing layout constraints, and practical handoff for engineers.

RIV

Motion that survives production.

I build motion in After Effects, Rive, Figma prototypes, CSS sandboxes, or directly in-engine when the project needs implementation-ready behaviour.

[#]

Full attention.

I take on a limited number of clients at a time. You get focused, principle-level work, not a queue number at an outsourcing factory.

///

Tight scope.

Whether it’s a targeted sprint, a full UI system delivered end-to-end, or ongoing UI leadership across production, I adapt to how your team works and what the project actually needs.

NDA

Business-ready.

I operate as a registered UK limited company, accustomed to NDAs and remote team onboarding across time zones.