Portfolio of Oleksii Dolbonosov

DOO Games Studio
Unity Technical Lead & AI-assisted game development.

13+ years in MMORPGs, shooters, AR/VR and mobile simulations. Strong in clean client–server architecture, performance optimization and production-ready code. Building DOO Games Studio as a personal lab for prototypes, tools and high-impact projects.

Unity · DOTS/ECS · URP
MMO · Runners · Simulators
.NET 6–8 · Microservices
AI · LLM · LangChain
🎮 View key projects 🐙 GitHub 💼 LinkedIn
Based in Mykolayiv, Ukraine · available for remote roles, co-dev and technical leadership.
About

Who is behind DOO Games Studio

DOO Games Studio is the personal brand of Oleksii Dolbonosov — Unity Technical Lead with a background in MMORPGs, live-ops, AR/VR, and serious games for training and analytics.

What I like to build
Systems-heavy games and tools where architecture actually matters: MMO backends, session shooters, drilling simulators, AR adventures, XR visualizations and internal AI pipelines for content & code.
MMORPG & online games Runners & arcade Industrial simulators VR / XR apps AI-assisted workflows
How I usually work
Prototype-first: prove the gameplay or system with a vertical slice, then grow it with clean boundaries and testable modules. I care about performance, crash-free KPIs, and making sure the team understands the architecture — not only me.
SOLID · Zenject Profiling & optimization Mentoring & reviews CI/CD & releases
What I bring to a team
A mix of hands-on coding, architecture thinking, and AI/automation mindset: I can lead the Unity side, co-design the backend, and help introduce AI tools to speed up content creation, scripting and documentation.
Technical leadership Cross-discipline communication AI for productivity
Expertise

Core skill set

A quick overview of the areas where I’m the most effective.

Engines & graphics
Unity 3.5–6000 URP / SRP Shader Graph VFX Graph GPU instancing Addressables UI Toolkit
Gameplay & systems
Zenject / Extenject UniTask Rx (Reactive) State machines Crafting & progression Party & guild systems Loot, chests & rewards Save systems Analytics & AB-tests Localization
Networking & backend
Photon / Mirror Agora RTC Custom protocols .NET 6–8 REST APIs Microservices Docker / Docker Compose Kubernetes FastAPI gateways SQL / MongoDB Telemetry & observability
Platforms & domains
Android / iOS Desktop WebGL VR (Quest / SteamVR) Training simulators Healthcare XR Kids games
Key Projects

Selected games & products

A mix of live products, shipped titles and prototypes that show how I think about gameplay, networking and tooling.

MMORPG · Social
WOTA
Unity client + custom .NET server for a social MMORPG on VK/OK/Mail.ru: packet-based networking, multi-zone world, portals, monsters, real-time combat, crafting, party system, progression and chest/loot systems.
Unity · .NET · Custom netcode Watch trailer →
MMORPG · Unreal
Unreal-based MMORPG (custom server)
Backend development and custom dedicated server for an Unreal Engine MMORPG: session management, game logic, persistence and communication between Unreal client and standalone server in a microservice-friendly architecture.
Unreal Engine · Custom backend Server-side role
Session shooter
Exowar
Room-based shooter for social networks: matchmaking, session loop, crafting, persistent progression and balance tuning, plus integration with VK/OK/Mail.ru.
Unity · Client–server Watch trailer →
Simulation · Desktop
Drilling Simulator
Training simulator for oil production control: procedural drilling physics, terrain, energy/temperature systems and data output to a physical device. URP optimization and pooling.
Unity · Desktop · Training Internal project
AR adventure
Maguss
AR spellcasting adventure on Android/iOS: map monsters, enemy players, costumes, potions, battle mode, UI, and various game systems.
Unity · AR · Mobile Gameplay video →
Puzzle · Desktop
Riddlord: The Consequence
Puzzle-adventure game with cinematic cameras and intricate level scripting. Worked on puzzle mechanics, interactions and camera rails.
Unity · Desktop Trailer →
XR · Healthcare
Amplifier AI VR
Healthcare visualization in XR: AI diagnostics data visualized in VR; REST integration, optimization for standalone headsets and presentation of complex metrics.
Unity · VR · Data viz Visit site →
Kids · Mobile
Dreams (Dreamsteam)
Kids-oriented mobile game “Dreams” for Android and iOS: UI/UX polish, analytics integration, performance optimization and support of Google Play / App Store publishing pipeline.
Unity · Mobile · Android & iOS Google Play →
Runner prototype
Escape from Gold
Atmospheric runner prototype: procedural terrain, physics-based movement, item system and early balancing experiments for speed/weight.
Unity · Runner Prototype
Arcade · Mobile
Condom Game & Cosmos Clicker
Satirical arcade about “sperm racing” & a space-themed clicker inspired by Flappy Bird: fast prototypes with clear mechanics and playful themes.
Unity · Mobile Condom Game →
Holiday runner
Santa Runner
Holiday-themed runner: rabbit, egg-collection mechanics, festive content, multiple regional versions and localization.
Unity · Runner Android / iOS
AI & Tooling

AI/LLM R&D and developer tooling

Parallel to game work, I’m building internal pipelines and tools that use LLMs and Python to speed up content creation, documentation and backend workflows.

AI Game Studio pipeline (R&D)
Unity–Python workflows for assisted content creation and automation: local LLM inference with Ollama, LangChain tools, prompt-based code generation, image/data pipelines via ComfyUI and FastAPI microservices for gameplay tooling and live-ops dashboards.
Ollama · OpenAI · DeepSeek LangChain ComfyUI FastAPI Internal tools
Experience

Summary of roles

Full CV and more details are available on request or via LinkedIn.

  • Unity Technical Lead — various projects (2021–2025): MMO backend design with microservices, Docker/Kubernetes, VR/healthcare visualization, kids games, internal AI tooling.
  • Senior Unity / .NET Developer — long-term work on online and mobile games, training simulators and cross-platform titles.
  • Unity Developer — early-era social network games (VK/OK/Mail.ru), runners, arcades and adver-games.
Contact

Let’s talk

Open to remote roles (full-time or long-term contract), co-development on ambitious games, and collaborations around AI-assisted gamedev tooling.

Preferred schedule: full-time, remote.
Location: Mykolayiv, Ukraine (UTC+2).

Best way to reach out: send a short intro + what you’re building (platform, engine, timeline), and I’ll reply with how I can help — technically and in terms of scope.

✉️ Email: narush1985@gmail.com 💬 Telegram 🐙 GitHub 💼 LinkedIn