Professional Summary
Lead Fullstack & Blockchain Engineer
Backend-focused Fullstack and Blockchain Engineer with
experience designing and delivering production-oriented
fintech and Web3 systems. Specialized in multi-chain
custody, wallets, transaction processing, trading
platforms, blockchain scanners, approval workflows,
real-time applications and API-first architecture.
Strongest in owning complex products across system
design, backend implementation, frontend delivery,
blockchain integrations and infrastructure. Comfortable
translating business requirements into scalable
technical systems and maintaining responsibility through
deployment, debugging and production iteration.
Engineering Value
✓
Design complete blockchain and financial
transaction architectures.
✓
Build secure wallet, custody and signing flows.
✓
Implement backend, frontend and infrastructure
as one consistent system.
✓
Handle transaction states, confirmations,
retries, failures and recovery.
✓
Integrate blockchain networks, exchanges,
DEX services and external APIs.
✓
Lead delivery from early concept to production.
Professional Experience
Founder & Lead Fullstack Blockchain Engineer
DENeon · Nov 2025 — Present · Yerevan / Remote
Founded and lead development of a multi-product
blockchain ecosystem covering enterprise custody,
wallets, DEX infrastructure and Telegram GameFi.
-
Architected a multi-chain custody platform for
custodial and non-custodial wallets.
-
Designed unified transaction APIs across Bitcoin,
EVM, TRON, TON and Solana.
-
Implemented wallet policies, role-based
permissions, workspaces and API keys.
-
Built configurable multi-approval transaction
workflows with thresholds, distinct approvers
and initiator restrictions.
-
Developed blockchain scanners, webhooks and
real-time balance and transaction events.
-
Built admin interfaces for wallets, assets,
transactions, approvals, scanners and webhooks.
-
Designed a generic serialized transaction
execution endpoint for custodial signing and
broadcasting of client-built Solana transactions.
-
Developed a Telegram Mini App with wallets,
rewards, GameFi, referrals and advertising flows.
-
Managed Docker, Kubernetes, ingress, domains,
TLS and production deployment infrastructure.
Architecture
FastAPI
Vue.js
SQLAlchemy
Redis
Kubernetes
Blockchain
Backend & Blockchain Developer
FreedX · Apr 2024 — Mar 2026 · Remote
Worked on backend and blockchain systems in a
cryptocurrency exchange environment, including
transaction workflows, APIs, integrations and
financial platform functionality.
-
Developed backend APIs and services for exchange
and wallet-related functionality.
-
Integrated blockchain networks and external
infrastructure services.
-
Worked with transaction processing logic,
financial operation states and blockchain data.
-
Implemented asynchronous workflows and supporting
persistence models.
-
Diagnosed backend and blockchain integration
issues across development and production.
-
Collaborated with frontend, product and
infrastructure teams on end-to-end delivery.
Python
Backend
Blockchain
Exchange Systems
REST APIs
Fullstack Developer
HopShop · May 2022 — Feb 2024
Developed and maintained fullstack web product
functionality across backend APIs, frontend
interfaces, databases and production support.
-
Built Python backend functionality and REST APIs.
-
Developed Vue.js components and integrated them
with backend services.
-
Implemented database models, queries and
application business logic.
-
Improved existing functionality and resolved
defects across the full stack.
-
Participated in deployment, maintenance and
production issue resolution.
Python
Flask
Vue.js
JavaScript
SQL
Key Projects
DENeon Custody
Multi-chain custody and blockchain processing platform
B2B custody infrastructure with wallets, transactions,
approvals, scanners, webhooks, workspaces, API keys
and unified blockchain APIs.
-
Custodial and non-custodial wallet models.
-
Multi-chain transaction creation, signing and
broadcasting.
-
Policy-based approval and execution workflows.
-
Event-driven scanners and webhook delivery.
-
Generic serialized transaction execution,
initially supporting Solana.
Bitcoin
EVM
TRON
TON
Solana
Custody
DENeon GameFi
Telegram Mini App · Wallet and GameFi product
Consumer Web3 application combining wallet onboarding,
game mechanics, rewards, referrals, ads and real-time
application events.
Telegram Mini App
GameFi
Wallet
Rewards
AdsGram
WebSockets
StockySpace & StockyEngine
Trading platform and Solana execution infrastructure
Fullstack trading platform integrating market data,
corporate wallet management, portfolio workflows,
Jupiter quotes and serialized Solana transactions.
-
Real-time market price delivery.
-
Workspace and API key access control.
-
Corporate wallet registry for operational roles.
-
Jupiter swap transaction package generation.
-
DENeon Custody integration for signing and broadcasting.
ASP.NET Core
FastAPI
Vue.js
Solana
Jupiter
ArbiNator
Multi-exchange cryptocurrency trading infrastructure
Trading automation system with multi-exchange market
data, signal confirmation, strategy configuration,
risk controls and paper-trading workflows.
Python
CCXT
Futures
Exchange APIs
Risk Management
Architecture Expertise
Financial & Blockchain Systems
- Wallet and custody architecture
- Transaction lifecycle design
- Signing and broadcasting boundaries
- Approval and authorization systems
- Blockchain scanners and confirmations
- Webhook and event delivery
Backend & Product Systems
- API-first architecture
- Async workers and queues
- Realtime application state
- Database consistency
- Administrative interfaces
- Deployment and production operations
Leadership & Ownership
Comfortable owning architecture and implementation
independently, coordinating technical decisions across
product, backend, frontend and infrastructure, and
maintaining responsibility through production delivery.
Technical Direction
Architecture
Product Ownership
Prioritization
Production Support