Emil Hambardzumyan

Available to hire

I’m Emil Hambardzumyan, a backend and blockchain integration engineer focused on building multi-chain custody, wallet infrastructure, and crypto exchange services.

About

I’m Emil Hambardzumyan, a backend and blockchain integration engineer focused on building multi-chain custody, wallet infrastructure, and crypto exchange services. I work across wallet operations, transaction processing, blockchain RPC integrations, and asynchronous APIs—helping platforms move reliably from signing to broadcasting to confirmations.

I’m also the founder and lead backend developer of DENeon, where I designed and deliver B2B multi-chain custody infrastructure and a Telegram-native Web3 experience. My day-to-day includes building unified APIs for nodes, assets, wallets, transactions, scanners, and webhooks, along with implementing production-grade workflows like retries, state synchronization, and configurable multi-approval custody operations.

  • 4 years' experience
  • Joined November 2026

Languages

  • ArmenianFluent
  • RussianFluent
  • EnglishBeginner

Industry experience

  • Financial Services
  • Software & Internet
  • Other

Work experience· 4 roles

Founder & Lead Backend / Blockchain Developer · DENeonNov 2025 – Present · 1 yr 1 mo

Design and develop B2B multi-chain custody infrastructure and Web3 wallet products, owning backend architecture, blockchain integrations and production delivery. Build a unified API and operational layer for wallets, blockchain nodes, assets, transactions, chain scanners and webhooks. Implement transaction workflows including creation, signing, broadcasting, confirmation monitoring, retries and state synchronization. Develop role-based access, API keys, wallet policies and configurable multi-approval workflows for custody operations. Integrate wallet-connected DEX/swap experiences and Telegram Mini App flows for Ethereum and ERC-20 assets.

Founder & Lead Full-Stack / Blockchain Integration Engineer · DENeonNov 2025 – Present · 1 yr 1 mo

Led architecture and development of a connected Web3 ecosystem spanning a B2B custody SaaS, DEX infrastructure, and a live Telegram-native product. Owned backend services and admin/frontend interfaces, plus wallet and transaction integrations, APIs/webhooks, and production infrastructure. Built real-time balance/transaction events, chain scanners, approval workflows, transaction execution APIs, and operational dashboards.

Backend & Blockchain Integration Developer · FreedXApr 2024 – Mar 2026 · 2 yrs

Developed backend APIs and blockchain integrations for centralized exchange and wallet-related functionality. Implemented transaction processing logic, asynchronous workflows, persistence models, and integrations with external blockchain infrastructure. Diagnosed backend/blockchain issues across development and production and collaborated across frontend, product, and infrastructure teams.

Full-Stack Developer · HopShopMay 2022 – Feb 2024 · 1 yr 10 mos

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