E-commerce / Online bookstore
Black Orchid
An online bookstore for Ukrainian literature, with delivery across Germany.
View project — Black Orchid
opopadinets43@gmail.com0
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1
ANDRIIPOPADYNETS
Full-Stack Developer
I build web services, mobile apps and backends.
↓Idea becomes
a product.
E-commerce / Agricultural supplies
Selena Agro
Spare parts for agricultural machinery, tractors and sprayers online.
View project↗ — Selena Agro
FinTech / Payments and digital assets
Banxe
Multi-currency accounts, payments, cards and digital asset services.
View project↗ — Banxe
FinTech / Fiat ↔ Crypto
Finlyft
Fiat and stablecoin conversion for businesses and high-net-worth clients.
View project↗ — Finlyft
FinTech / International payments
Payver
Multi-currency accounts, international transfers and online card payment acceptance.
View project↗ — PayverCurrently working on
My work at Payver
Building financial services and AI tools at Payver — from customer payments to automation for internal teams.
Explore my contributions↗
Technologies
JavaScript
React- React Native
Node.js
Python
FastAPI
Django
Go
PHP
Docker
PostgreSQL
SQLite
MongoDB
MS SQL
Grafana
Prometheus- ZZabbix
Telegram SaaS development: customer journeys, subscriptions, access management and integrations with your internal services.
- Telegram
- SaaS
- Subscriptions
WhatsApp services through Twilio: notifications, conversational workflows and connections to CRM and support tools.
- Twilio
- CRM
OTC platforms with client accounts, quote requests, deal statuses and integrations with the services your team uses.
- OTC
- Client portal
- Integrations
Web3 applications, wallet connections and launching your own tokens on Solana — connecting on-chain functionality with your product interface.
- Solana
- Tokens
- Wallets
Crypto trading bots with exchange API integrations, execution rules, limits and monitoring. Built around your strategy, without promises of returns.
- Exchange APIs
- Execution
- Monitoring
Integrate n8n into CI/CD and complex systems: connect events, deployments and business workflows with controlled retries and visibility.
- n8n
- CI/CD
- Automation
Develop, implement and configure load balancing for medium and complex systems, with health checks, failover and monitoring.
- Load balancing
- Failover
- Observability