01
Python API integrations
Connect APIs, business applications and databases with reliable data flows tailored to the way you work.
Explore this service INDEPENDENT SOFTWARE DEVELOPERGood software.
Good software.
Less busywork.
I’m Serhii. I build Python integrations and automations that connect your systems and take repetitive work off your plate.
15 years of development experience.
Practical solutions. Clear communication. Maintainable code.
Practical solutions. Clear communication. Maintainable code.
FROM MANUAL TO AUTOMATIC
LESS REPETITION. MORE CONNECTION.PYTHON
Your systemsYour starting point
Custom PythonBuilt around your rules
Working togetherReady for what’s next
Thoughtful code. Practical outcomes.01 → 02 → 03
Built to fit your business. Not the other way around.
APIs connected.Data in sync.Time back.
TOOLS I WORK WITH
PythonDjangoFastAPIShopifyPostgreSQLDocker
01 / WHAT I CAN HELP WITHMake your tools
Make your tools
work harder for you.
From a single API connection to a complete supplier sync, I build around the workflow you actually need.
02
Shopify inventory sync
Keep Shopify stock, prices and product data aligned with your suppliers, without repetitive spreadsheet updates.
Explore this service03
Supplier feed automation
Transform supplier CSV, XML, JSON and API data into consistent inventory, pricing and catalog updates.
Explore this service02 / THE DEVELOPER BEHIND THE CODEA direct line to
A direct line to
the person building it.
Serhii R.
BASED IN UKRAINE · WORKING WORLDWIDE
I’m Serhii Riabcheniuk, a software developer with 15 years of experience turning business requirements into working software.
My focus is practical automation: connecting applications, keeping ecommerce data consistent and replacing repetitive manual tasks with dependable workflows.
I work with Python, Django, FastAPI and databases, with deployment tools such as Docker and AWS when a project needs them. You work directly with me, from the first conversation through the handover.
Built for your workflowClear rules before we write code.
Yours to run and extendSource code and a useful handover.
03 / A STRAIGHTFORWARD PROCESSFrom “can this be automated?”
From “can this be automated?”
to “it’s taken care of.”
Tell me what gets in the way.
Share your systems, a sample file or API docs, and what a successful result looks like.
Agree on a clear plan.
I review the workflow and confirm the scope, deliverables and quote through Fiverr.
Build, test and hand over.
I implement the agreed solution, test the data flow and explain how to operate it.
LET’S BUILD SOMETHING USEFULLess manual work.
Less manual work.
More room to grow.
Tell me what you’re doing manually.
I’ll help you find a practical way to automate it.
Discuss your project on Fiverr
Send a short brief. We’ll work out the details together.