Glendale, CA

Viacheslav Klymenko

Principal Engineer - Applied AI and Game Systems

I build games and simulations in Unity and C#, from controls and progression to release and live support. I owned the Coloring activity in PAW Patrol: The Game at Originator (Spin Master), design through its July 2026 worldwide iOS and Android release. I was the studio's technical escalation point, and built a child-safe LLM story experience with generative voice. I then built and shipped GamePrompt, which turns a description into a Godot build and verifies each one compiles and runs. Earlier I published up to 100 mobile games with 20M+ downloads, led client architecture on a server-authoritative casino suite, and architected a VR training simulator for airport ground crews.

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Selected work

All projects →

▶ Demo

GamePrompt

2026

A conversational description becomes a complete, playable Godot build.

Shipped· TypeScript· Next.js· Godot

PAW Patrol: The Game - Coloring

2026

Owned an activity end to end, from design to worldwide release on iOS and Android.

Shipped· Unity· C#· iOS

Child-Safe AI Story Experience

2025

Children create, narrate and illustrate their own stories - with guardrails two red teams could not break.

Archived· Unity· C#· LLM integration

▶ Demo

Cubric

2023

A 3D voxel world with procedural terrain and live multiplayer.

Shipped· Unity· C#· Procedural generation

Capabilities

Agentic AI: Claude Code as a daily primary engineering tool · Multi-model LLM orchestration across Anthropic and OpenAI, routed by task and cost · Model Context Protocol (MCP) server in production against a headless build toolchain · Tool and function calling · Prompt and context pipelines versioned in git, deployed through CI · Per-model token and cost instrumentation metered into billing
Evaluation: Deterministic compile-and-run gate on every generated project, blocking release on failure · Correctness measured rather than reviewed · Automated regression and policy testing in CI
Backend & platform: C# · TypeScript / Node · REST and WebSocket services · Webhook handling with idempotent retries · Microservice and third-party integration · Firebase / Firestore · Cloudflare Workers and R2 · Stripe billing
Generative media: Three years on the ElevenLabs voice APIs across two shipped products · Automated pipelines producing 3D assets, audio, imagery and code from a text description · Import, validation, versioning, packaging, deployment
Game systems: 3Cs: character, camera, control · Combat and interaction systems · Inventory, progression, save systems · HUD and UI integration, multiple game modes · 3D math, procedural generation, physics-driven movement · Photon PUN, Realtime and Fusion · Profiling and memory optimisation across mobile, VR and WebGL
Engines: Unity and C# (expert) · Godot (production) · Babylon.js with custom shaders (production) · ShiVa3D (production, 20M+ downloads) · C++ on the Nebula engine · Unreal (working knowledge)
Operations: GitHub Actions CI/CD · Automated regression and policy testing · Structured logging and cost telemetry · Production incident response on a live system