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Fiverr Pro
English
$
USD
I will build reliable python API integrations, data sync and automation
Serhii R
Level 2
About this gig
Need two systems to exchange data reliably without manual work?
I build production-ready Python API integrations that connect applications, databases, CRMs, ERPs, e-commerce platforms, supplier systems, and internal tools.
Typical projects:
- API-to-API, API-to-database, Sheets or CSV integrations
- One-way or two-way data synchronization
- Scheduled sync jobs and webhooks
- OAuth 2.0, API keys, bearer tokens, and custom authentication
- Data mapping, validation, transformation, and deduplication
- Pagination, rate limits, retries, logging, and error handling
- FastAPI, Flask, or Django endpoints
- Docker, AWS, VPS, or cloud deployment
You receive maintainable Python source code, setup instructions, and a solution tested against the agreed workflow.
I have 15 years of software development experience and focus on reliable business integrations that are easy to operate and extend.
Please message me before ordering with the API documentation, systems involved, data flow, frequency, volume, and business rules.
Get to know Serhii R
Serhii R
Python Automation, API and Data Integration Developer
Level 2
- FromUkraine
- Member sinceNov 2019
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Ukrainian
I help businesses reduce manual work, cut operating costs, and connect systems through practical automation.
I build Python and n8n workflows, AI-powered automations, API integrations, e-commerce sync for products, inventory, prices and orders, web scraping, data processing, Django/FastAPI applications, and Plotly Dash dashboards.
I can work with APIs, ERP systems, marketplaces, XML, CSV, JSON and spreadsheets.
With 15+ years of software development experience, I focus on reliable, maintainable solutions that fit real business processes and deliver measurable value.
My Portfolio
Other Software Development Services I Offer
FAQ
What do you need from me before starting?
Please send the API documentation, the systems you want to connect, the data that needs to move between them, sync frequency, and any business rules or transformations required.
Can you work with APIs that require authentication?
Yes. I can work with API keys, bearer tokens, OAuth 2.0, JWT, basic authentication, and custom authentication flows.
Can you synchronize data in both directions?
Yes. I can build one-way or two-way synchronization, depending on the APIs and your business requirements.
Can the integration run automatically?
Yes. Integrations can run on a schedule, react to webhooks, or operate continuously as a background service.
Can you deploy and host the integration?
Yes. I can deploy to AWS, VPS servers, Docker environments, or other suitable cloud infrastructure. Hosting costs are not included unless agreed separately.
What if the API has rate limits or temporary errors?
I can implement retries, rate-limit handling, logging, validation, and error recovery so the integration operates reliably.
Can you integrate with an API that has poor or incomplete documentation?
Yes, in many cases. Send me the available documentation or access details and I can assess what is possible before you order.
