sergeymart

Designed electronic witnessing and traceability system for regulated IVF labs, implementing strict identity verification, zero-collision sample tracking, audit chains, SOP enforcement, and hardware scanner integration for production workflows.

Designed liquid-staking protocol on TON, defined staking flows, reward logic and safety constraints, implemented smart contracts and backend services, and designed staking and exit mechanisms.

Designed multi-asset collateral-backed stablecoin protocol, implemented mint, burn, redemption, interest-rate curves and liquidation logic, built on-chain risk framework and protocol safety mechanisms, and designed supporting backend services and protocol indexing.

Designed and delivered blockchain systems in regulated environments, built decentralized governance and e-voting system with cryptographic verification, ensured end-to-end auditability and vote integrity, developed over-collateralized asset contracts and supporting backend services, and delivered MVP integrations with Ledger hardware wallets.