API Integration & Development — Connect Any SystemSerhii Lukash
Need two systems to talk to each other — or a custom API built from scratch?
I design and build API integrations that connect your tools, automate data flow, and keep everything in sync — reliably and without manual work.
What I build:
💳 Payment integrations — Stripe, LiqPay, PayPal, crypto gateways
🔗 CRM & tool connections — HubSpot, Notion, Airtable, Salesforce via API
🏗️ REST APIs from scratch — for mobile apps, frontends, or internal tools
📡 Webhook automation — real-time triggers between services
📨 Third-party APIs — Google, Twilio, SendGrid, OpenAI, and more
🔄 Data migration — move and transform data between platforms via API
Built with: Python · FastAPI · PostgreSQL · Docker
FAQs
Example work
Starting at$250
Duration2 weeks
Tags
FastAPI
PostgreSQL
Python
Stripe
Webhooks
API Integration
Backend Engineer
REST API
Third-Party API
Service provided by
Serhii Lukash Vinnytsia, 21000
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- Followers
API Integration & Development — Connect Any SystemSerhii Lukash
Starting at$250
Duration2 weeks
Tags
FastAPI
PostgreSQL
Python
Stripe
Webhooks
API Integration
Backend Engineer
REST API
Third-Party API
Need two systems to talk to each other — or a custom API built from scratch?
I design and build API integrations that connect your tools, automate data flow, and keep everything in sync — reliably and without manual work.
What I build:
💳 Payment integrations — Stripe, LiqPay, PayPal, crypto gateways
🔗 CRM & tool connections — HubSpot, Notion, Airtable, Salesforce via API
🏗️ REST APIs from scratch — for mobile apps, frontends, or internal tools
📡 Webhook automation — real-time triggers between services
📨 Third-party APIs — Google, Twilio, SendGrid, OpenAI, and more
🔄 Data migration — move and transform data between platforms via API
Built with: Python · FastAPI · PostgreSQL · Docker
FAQs
Example work
$250