adrassad
Senior Backend Developer
Backend Developer focused on DeFi, Web3 infrastructure, and crypto analytics. I build backend services using Node.js, Express, PostgreSQL, Redis, REST APIs, Telegram Bot API, blockchain RPC, and Aave-based risk monitoring.
I’m currently building Cryprice, a DeFi-focused product for wallet tracking, crypto price monitoring, Aave Health Factor alerts, and liquidation-risk notifications. I have experience with backend architecture, authentication flows, background jobs, API integrations, database design, and multi-chain Web3 data services.
I’m looking for a Backend Developer role in Web3, DeFi, crypto infrastructure, fintech, blockchain analytics, or risk-monitoring products.
Experience: 11 years
Yearly salary: $80,000
Hourly rate: $40
Nationality: 🌏 Remote
Residency: 🇩🇪 Germany
Experience
Software Developer / Enterprise Systems Developer
AURORA 2023 - 2024
Developed Telegram bot integrations, Naumen ITSM automation, and Naumen to GanttPro integration. Stack: Groovy, Telegram Bot API, integrations.
Lead Software Developer / Backend & Integrations Engineer
DEFO 2017 - 2026
Developed business-critical backend logic, enterprise integrations, reporting, pricing logic, data processing, and automation. Designed and maintained system exchanges using JSON, XML, SOAP, HTTP services, and ESB; worked with SQL-heavy processing and complex operational logic.
Enterprise Systems Developer
ElitProfit/Alitet/Blankt 2007 - 2023
Worked across enterprise development, database-heavy systems, integrations, reporting, mobile-sync scenarios, and operational automation.
Skills
backend
blockchain
dart
docker
ethereum
flutter
git
integration
java
javascript
linux
nginx
postgres
redis
sql
typescript
web3js
node
english
russian