Engineering experience across blockchain, backend and product systems.

Founded and lead the engineering of the DENeon ecosystem — a connected blockchain product suite covering enterprise custody, wallet infrastructure, DEX functionality and Telegram GameFi.

• Architected a multi-chain custody platform supporting custodial and non-custodial wallet workflows across Bitcoin, EVM, TRON, TON and Solana.
• Designed unified transaction APIs for wallet creation, transfers, raw transactions, serialized transaction execution and blockchain-specific signing flows.
• Implemented workspace-based access control, API keys, permissions, administrative roles and transaction approval policies.
• Built configurable multi-approval transaction workflows with approval thresholds, distinct approvers, initiator restrictions and optional automatic execution.
• Developed blockchain scanners for balance tracking, transaction confirmations and event generation.
• Implemented webhook and real-time event delivery for transaction status updates, balance changes and operational events.
• Built Vue.js administrative interfaces for assets, wallets, transactions, approvals, scanners, webhooks and workspace management.
• Designed and developed a Telegram Mini App with wallet functionality, GameFi mechanics, rewarded advertising and real-time user flows.
• Created DEX and token simulation functionality, including configurable dynamic prices, price history and real-time updates.
• Managed Docker and Kubernetes-based deployments, domains, ingress routing, TLS certificates and production infrastructure.
• Owned the product lifecycle from concept and architecture through implementation, deployment and iterative improvements.

Worked on backend and blockchain-related systems in a cryptocurrency exchange environment, with responsibility for integrations, transaction flows, APIs and financial platform functionality.

• Developed backend services and APIs for cryptocurrency exchange functionality.
• Integrated blockchain networks and external services used by exchange and wallet workflows.
• Worked with transaction processing logic, blockchain data and financial operation states.
• Implemented and maintained asynchronous backend workflows and supporting data models.
• Diagnosed backend and blockchain integration issues across development and production environments.
• Collaborated with product, frontend and infrastructure teams on end-to-end features.
• Contributed to the reliability and operational stability of exchange-related backend systems.

Developed and maintained web product functionality across backend services, frontend interfaces, database logic and production support.

• Built backend functionality and REST APIs using Python-based web frameworks.
• Developed Vue.js frontend components and integrated them with backend services.
• Implemented database models, queries and application-level business logic.
• Fixed defects and improved existing product functionality across the full stack.
• Worked with authentication, user-facing workflows and administrative functionality.
• Participated in deployment, maintenance and production issue resolution.
• Collaborated with the product team to translate requirements into working functionality.