Hire Anthony KOZAK
Anthony KOZAK
Senior Unity Developer & Game Engineer
Schedule a Free Discovery Call View LinkedIn ProfileCore Skills
Past Clients
Why hire Anthony?
Anthony KOZAK is a senior Unity developer and game engineer with 16+ years of professional production experience. Before going independent, he spent five years at Ubisoft — working on Eagle Flight (one of the first AAA VR titles for PlayStation VR and Oculus Rift) and Rabbids Coding (winner of the Games for Change Award 2020 for Best Learning Game). That AAA discipline — shipping polished, performance-sensitive software on a schedule — is the baseline for every client engagement today.
As a freelancer, he has shipped 50+ projects for clients including Meta, L'Oreal, TBWA, and Ankama. He also maintains 16+ commercial Unity plugins on the Asset Store used by thousands of developers worldwide — a publishing record that demonstrates both sustained software quality and product thinking at scale.
The practical outcome for clients is a developer who can own a problem end-to-end: architecture decisions, implementation, platform submission, post-launch iteration — without needing a second senior engineer to review every call.
What I build
Games & Interactive Apps
Unity 6 games for mobile, PC, console, and web. From prototype to launch-ready build: gameplay systems, physics, AI, UI, performance tuning, and platform submission.
VR & XR Experiences
Immersive experiences for Meta Quest 2/3/Pro and OpenXR platforms. Hand tracking, spatial UI, locomotion, multiplayer, and performance optimization for standalone hardware.
Unity Tools & Plugins
Custom Unity editor extensions, runtime libraries, and Asset Store-quality plugins. Camera systems, level editors, UI frameworks, tutorial engines, and workflow automation tools.
Web Applications
Full-stack React + Laravel or Node.js web apps. REST APIs, real-time features, database design, and cloud deployment. Well-suited for game companion apps, dashboards, and content platforms.
Code Review & Technical Audit
Senior-level review of existing Unity or web codebases. Architecture assessment, performance profiling, security audit, and a written report with prioritized recommendations.
Game Dev Training
One-on-one or small-group mentoring in Unity development and C#. Curriculum design for studio onboarding, bootcamps, or university programmes. Delivered remotely via video call.
How it works
Discovery Call — 30 minutes, free
We discuss your project, goals, constraints, and timeline. I ask the questions needed to scope accurately — tech stack, platforms, team size, key risks. You get a clear sense of whether I am the right fit. No obligation on either side.
Proposal — within 48 hours
A written proposal covering scope, deliverables, milestones, and timeline. Fixed-price projects include a milestone breakdown so you know exactly what is delivered at each stage and when. Time-and-materials projects include an estimated range and invoicing schedule.
Build — with weekly check-ins
Work begins on the agreed scope. You receive weekly progress updates with early builds or draft deliverables, and direct access via email or a shared Slack channel throughout. No black-box development periods — if scope changes, we discuss it before it affects the timeline.
Handover & post-launch support
Final delivery with handover documentation and source code. Fixed-price projects include a post-delivery support period for bug fixes and questions. Ongoing retainer clients continue with reserved monthly hours.
Engagement models
Every project is different. Three structures cover most scenarios — terms are discussed and agreed privately after the discovery call.
Fixed-Scope Project
Defined scope, agreed deliverables, fixed total. Best for greenfield builds, audits, or tool development where requirements are clear upfront. You know the cost before work begins.
Discuss this modelTime & Materials
A day rate applied to actual hours, invoiced weekly or bi-weekly. Best for longer engagements or projects where scope evolves as requirements become clearer. Maximum flexibility.
Discuss this modelMonthly Retainer
Reserved capacity each month for ongoing maintenance, mentoring, or consulting. Best for live game support, ongoing code review cadences, or teams needing regular senior access.
Discuss this modelCredentials & recognition
Games for Change Award 2020 — Best Learning Game
Rabbids Coding (Ubisoft Lille) — awarded by the leading games-for-good organization, shipped in 17 languages.
Senior Developer, Ubisoft — 2015 to 2020
Eagle Flight (Ubisoft Montreal, PSVR launch title) · Rabbids Coding (Ubisoft Lille) · O.Zen biofeedback mobile app.
Unity Asset Store Publisher — 16+ Commercial Plugins
Touch Camera Pro, Home Designer, Floor Plan Designer, Tutorial Engine, and 12+ more — used by thousands of developers worldwide.
50+ Projects — PC, Mobile, Console, VR, Web
Clients include Meta (Spirit Sling, Meta Quest), L'Oreal (Viva Technology interactive installation), TBWA, Ankama, La Roche-Posay Foundation, and Floreo.
Frequently asked questions
Are you currently available for hire?
What types of projects do you take on?
Do you work remotely, and what time zones do you cover?
How does the hiring process start?
What platforms and technologies do you specialize in?
Can you join an existing team as an embedded contractor?
Ready to discuss your project?
Tell me what you are building, your timeline, and any constraints. I will come back to you within 24 hours — no commitment required.
Schedule a Free 30-Minute Discovery CallOr email directly: [email protected]
Last updated: June 2026