Dzmitry Rybakou

A secure cross-platform application for managing digital cards, identity documents, and sensitive data with a strong focus on privacy and performance.

• Developed Rust-based core logic for high-performance shared processing across platforms.
• Implemented native iOS and Android integrations to leverage biometrics, Secure Enclave, and Keystore capabilities.
• Built flexible UI flows for dynamic document templates and dense information visualization.
• Optimized persistence and offline-first behavior with encrypted local storage.

Developed a high-performance VPN client for Windows, macOS, iOS, and Android.

• Engineered a polished desktop experience in Flutter Desktop with tray integration and window management.
• Built low-level platform channels to talk to network drivers and secure tunnel protocols.
• Integrated secure credential storage and automated background updates.
• Managed code signing and store distribution across desktop and mobile platforms.

Built from scratch a fully automated AI-driven trading platform for NYSE and NASDAQ operation with round-the-clock monitoring and execution.

• Architected the full system around a multi-agent pipeline with LangChain and MCP for signal generation.
• Integrated Alpaca Markets for market data streaming and trade execution.
• Built multi-source data ingestion from Twitter/X, financial news, and market feeds with NLP-driven decision flows.
• Delivered Telegram operations, risk controls, drawdown limits, circuit breakers, and Grafana-based observability.

An information system for document authenticity, storage, and verification built on blockchain for legal, academic, and real-estate workflows.

• Led team delivery of a customized blockchain foundation for secure document workflows.
• Implemented smart contracts for document transactions and access control.
• Designed the verification mechanism that improved trust and reduced fraud.
• Participated in a major rewrite that improved performance and functionality across the system.

A custom L1 blockchain ecosystem on Substrate with EVM-compatible parachains and compliance modules for the fintech sector.

• Designed and maintained a custom L1 blockchain ecosystem with interoperable parachains.
• Spearheaded compliance modules powered by LLaMa2 for regulatory workflows.
• Worked cross-functionally with product and design to shape blockchain-based solutions.
• Established and managed decentralized governance capabilities.

A Substrate-based L1 focused on secure storage of game files and blockchain-linked data, with Solidity support and a TypeScript indexing layer.

• Led the design and development of a custom blockchain for decentralized file and game data storage.
• Built a TypeScript indexer for real-time analysis and monitoring of on-chain events.
• Architected the end-to-end storage mechanism and blockchain interaction model.
• Oversaw delivery as technical lead and scaled delivery pipelines with Docker and CI/CD.

A microservice-based marketplace for user accounts, product discovery, seller communication, and admin moderation workflows.

• Designed application architecture and helped drive the microservice approach.
• Delivered unit and integration test coverage across the system.
• Built authentication with API keys and JWT-based access control.
• Contributed to requirement definition, work scheduling, code review, and feature implementation.

A Web API that aggregated player identity, achievements, payments, and analytics through providers such as Google and Apple.

• Implemented JWT-based authentication and API key protection.
• Built unit and end-to-end tests for critical flows.
• Developed core logical services for user and player aggregation.
• Contributed to requirement planning and team task management.

A decentralized financial platform bridging cryptocurrency transactions and traditional financial services with secure, high-throughput backend systems.

• Developed and optimized Rust back-end systems for high transaction throughput.
• Implemented multi-threaded processing for scalability and performance.
• Integrated DeFi protocols to bridge crypto and traditional finance.
• Maintained security and reliability through reviews and best practices.