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Senior Slot Game Engine Developer and Full-Stack Engineer with hands-on experience building end-to-end iGaming solutions using TypeScript/JavaScript and PixiJS, including reel mechanics, symbol animations, bonus rounds, free spins, and RNG integration. I also operate a live AI SaaS platform where I combine production-ready backend/web architecture with LLM orchestration and automation. I enjoy designing efficient rendering and gameplay systems, building reliable APIs and data models, and shipping automation that improves operational workflows. I’m focused on cost-quality tradeoffs, performance, and maintainable engineering across both game engines and AI-driven products.…Senior Slot Game Engine Developer and Full-Stack Engineer with hands-on experience building end-to-end iGaming solutions using TypeScript/JavaScript and PixiJS, including reel mechanics, symbol animations, bonus rounds, free spins, and RNG integration. I also operate a live AI SaaS platform where I combine production-ready backend/web architecture with LLM orchestration and automation. I enjoy designing efficient rendering and gameplay systems, building reliable APIs and data models, and shipping automation that improves operational workflows. I’m focused on cost-quality tradeoffs, performance, and maintainable engineering across both game engines and AI-driven products.

Kiril Stoyanov

Game Developer, Game Designer, Full Stack Developer, +2

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Senior Slot Game Engine Developer and Full-Stack Engineer with hands-on experience building end-to-end iGaming solutions using TypeScript/JavaScript and PixiJS, including reel mechanics, symbol animations, bonus rounds, free spins, and RNG integration. I also operate a live AI SaaS platform where I combine production-ready backend/web architecture with LLM orchestration and automation. I enjoy designing efficient rendering and gameplay systems, building reliable APIs and data models, and shipping automation that improves operational workflows. I’m focused on cost-quality tradeoffs, performance, and maintainable engineering across both game engines and AI-driven products.…Senior Slot Game Engine Developer and Full-Stack Engineer with hands-on experience building end-to-end iGaming solutions using TypeScript/JavaScript and PixiJS, including reel mechanics, symbol animations, bonus rounds, free spins, and RNG integration. I also operate a live AI SaaS platform where I combine production-ready backend/web architecture with LLM orchestration and automation. I enjoy designing efficient rendering and gameplay systems, building reliable APIs and data models, and shipping automation that improves operational workflows. I’m focused on cost-quality tradeoffs, performance, and maintainable engineering across both game engines and AI-driven products.

Available to hire

Senior Slot Game Engine Developer and Full-Stack Engineer with hands-on experience building end-to-end iGaming solutions using TypeScript/JavaScript and PixiJS, including reel mechanics, symbol animations, bonus rounds, free spins, and RNG integration. I also operate a live AI SaaS platform where I combine production-ready backend/web architecture with LLM orchestration and automation.

I enjoy designing efficient rendering and gameplay systems, building reliable APIs and data models, and shipping automation that improves operational workflows. I’m focused on cost-quality tradeoffs, performance, and maintainable engineering across both game engines and AI-driven products.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Beginner

Language

Bulgarian

Fluent

English

Advanced

Work Experience

Founder & Developer at EasySchool

January 1, 2026 - Present

Building a SaaS platform for school administration workflows with multi-tenant support, subscriptions, and real-time dashboards.

Founder & Developer at NEXMARK OS

January 1, 2026 - Present

Designed and operates an AI business-intelligence SaaS platform (Next.js, TypeScript, PostgreSQL/Prisma, Docker) deployed on a self-managed Linux server. Built a multi-tier LLM routing system on OpenRouter to balance cost and output quality across fast/standard/heavy model tiers. Implemented a production Playwright-based autonomous browser automation worker with session persistence, Redis-backed task queuing, and robust error/timeout handling. Added natural-language command routing, real-time streaming chat, and voice interface integration.

Freelance Software Developer at TechPlast

May 1, 2025 - July 1, 2026

Built a custom web-based pricing and project calculator for PVC/aluminum window and door systems. Developed internal automation tools supporting B2B sales and manufacturing processes.

Creator & Mobile App Developer at KALIBAR

January 1, 2025 - Present

Designed and built a mobile application for field quoting and license management in the joinery/windows industry, supporting Android and iOS workflows.

Senior Slot Game Engine Developer at KS Pro

January 1, 2025 - Present

Designed and built complete slot game engines using TypeScript/JavaScript and PixiJS, covering full game flow: reel mechanics, symbol animations, bonus rounds, free spins, and RNG integration. Implemented memory-efficient rendering pipelines to support high-performance gameplay. Contributed backend development with Node.js, GraphQL, MongoDB, and PostgreSQL.