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Fiverr Pro
English
$
USD
I will do rest api integration webhooks crm data sync and google sheets automation
Serhii N
About this gig
Most integrations work on the day they are built. The question is what
happens on day 40, when the other side renames a field, the API starts
rate-limiting you, or a page of results comes back empty.
I build for that from the start:
- retries with backoff on transient failures, so one timeout doesn't lose a record
- idempotent runs - running it again never duplicates what already went through
- a reconciliation check: what went in and what came out have to agree, and the run fails loudly when they don't
What I connect: CRMs (HubSpot, Pipedrive, GoHighLevel), Airtable, Google
Sheets, Stripe, Slack, Notion, and any REST API that has documentation.
Python or n8n, whichever suits your setup - I'll tell you which and why
before we start.
Every delivery includes the code or workflow, a short handover note, and the
test I used to verify it, so you or your next developer can change it
without guessing.
I work in writing - detailed messages and short screen recordings - so every
decision stays on record and searchable.
Message me with the two systems you want connected and what should happen
between them. If it doesn't fit a package, I'll say so.
Get to know Serhii N
Serhii N
n8n, Make and Zapier automation developer
- FromUkraine
- Member sinceJul 2026
Languages
Ukrainian, Russian, English
I build automations that keep working after handover.
Mostly n8n, Make and Zapier: API integrations, CRM syncs, scheduled data
pulls, and scrapers that write into Sheets or a database. I build them to
fail loudly rather than quietly skip records - retries, safe re-runs, and a
check that what went in matches what came out.
Every order includes the workflow, a short handover note and the tests I
ran, so you or your next developer can change it without guessing.
I work in writing - detailed messages, screenshots and short screen
recordings - so every decision stays on record.
My Portfolio
FAQ
Do you need admin access to my accounts?
No. API keys with the minimum scopes, created by you - I list exactly which ones before we start, and you revoke them after handover.
What if the API needs a paid plan?
Some platforms put webhooks behind a higher tier. I check that before we start and tell you, so it isn't a surprise halfway through the order.
Can you fix an integration someone else built?
Yes, if the code or workflow is accessible. Send it over and I'll tell you what's wrong before you order anything.
Do you do calls?
I work in writing, with short screen recordings when something needs showing. It keeps every decision on record and searchable later.
