Rytis – React, Node.js, web3.js

A company helping crypto investors manage their investments by just speaking their mind!

• Built an LLM orchestration backend for a blockchain AI assistant;
• Designed agent execution pipelines and structured tool usage systems;
• Implemented scalable services.

A community-driven, browser-based pixel MMORPG that focuses on retro aesthetics and social gameplay. Since it runs directly in the browser, it removes the barrier of heavy downloads, making it accessible on almost any device with internet access

• Built the entire stack of the project;
• Worked on the web-client with React, Three.js, and websockets for real-time communication;
• Create game server code using Bun;
• Handled the authentication service, handling connections between different servers and Stripe subscriptions.

The largest decentralized exchange built on the Rootstock chain. A feature-rich platform supporting swaps, bridging, lending, borrowing, staking, and even crowdfunding.

• Built complex React interfaces for DeFi trading, staking, and governance flows;
• Architected backend services handling DeFi transactions for a platform with $40M TVL and thousands of active users;
• Designed and implemented SDK integrations enabling secure blockchain transaction flows across DeFi products;
• Acted as technical lead for a team of 5 engineers.

A product that helps furniture makers and merchants to sell their products by generating images and descriptions for their product listings and providing helpful insights by analyzing data from competitors.

• Co-founded an AI startup focused on merchant automation;
• Architected an AI agent that generated product descriptions, imagery, and competitive research;
• Designed background jobs and queues to handle heavy tasks at scale;
• Designed backend infrastructure and frontend systems.

A San Jose-based fintech company founded in 2018 that provided blockchain-based payment currency and mobile payment services, specifically focusing on high-risk industries like cannabis.

• Built a merchant dashboard for a payment collection service;
• Designed and implemented transaction tracking and reporting interface.

A payment provider service supplying Baltic State merchants with easy payment integrations.

• Developed a mobile app prototype functioning as a debit card with contactless payments;
• Integrated native iOS (Swift) and Android (Kotlin) plugins into React Native.

An Ethereum-based crypto casino utilizing smart contracts to offer a 0% house edge on skill-based games, ensuring transparent, provably fair gameplay. The platform utilizes the native EDG token for betting and employs state channel technology for faster transactions

• Led a team of 5 engineers;
• Architected contracts for web-client and backend interactions for casino games and implemented them;
• Build a secure and easy for users to use crypto deposit and withdrawal flows