Олександр Ткачук
Full-Stack Developer · Engineer · 3D & Brand Designer
Profile
Versatile technical specialist with full-cycle development experience — from backend, databases and smart contracts to branding, vector graphics and 3D design. Working across AI platforms, blockchain solutions, game servers and Telegram applications. Quick to pick up new technology stacks and comfortable taking on projects of any complexity or industry. Freelance-oriented: flexible, broad skill set, full ownership of results.
Technical Skills
Backend: Java, Node.js, Python, Prisma ORM, PostgreSQL, pgvector
Frontend: JavaScript, HTML5, CSS3
Blockchain: Solidity, smart contracts (Polygon), crypto payment integration
AI / ML: LLM integration, vector-based precedent search, automated evidence scoring
Payments: Stripe, crypto payment gateways
Real-time: Socket.io, streaming interfaces
Computer vision: OpenCV, NumPy — image vectorization and processing
Design: 3D modeling, branding, logo design, UI/UX
Selected Projects
AI Dispute Resolution Platform (AI-Arbiter)
Full-stack platform for DAO and e-commerce use cases: animated landing page, complete Prisma database schema, dual payment system (Stripe + crypto), AI arbitration engine with evidence scoring and pgvector precedent search, Solidity smart contract on Polygon, Socket.io real-time verdict streaming.
Telegram Mini App — Casino Platform
Development, debugging and feature expansion of the platform, including an NFT Gift System.
GTA 5 RP Server
Designing a game server with AI-driven NPCs (LLM) and an automated player-dispute arbitration system as the key differentiator in a saturated market.
Smart Loop Builder Python Script for DaVinci Resolve 20
Tool for seamless 4K video looping using SSIM, histogram and ORB seam analysis, built for a cloud-based Windows environment.
Availability
Open to freelance projects of any scale and industry — backend and frontend development, blockchain, AI integrations, video processing, branding and design. Fast communication, flexible schedule, full accountability for results.
