React and TypeScript web applications

External Service Integrations

An integration removes manual data transfer but must survive duplicate delivery and temporary outages.

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Tell me the goal, stack constraints, and timeline — I reply on Telegram.

An integration removes manual data transfer but must survive duplicate delivery and temporary outages. I connect payment, CRM, email, and other APIs through explicit contracts, webhooks, and observable background jobs.

For every flow I define an external ID, field ownership, API limits, and retries. Scope includes the adapter, transformation, an optional queue, secret storage, and technical logs—not vendor licences or source-directory cleanup. Acceptance simulates duplicate webhooks, bad signatures, rate limits, and recovery; one operation must not be created twice, and an operator can find failures by entity ID.

Acceptance criteria

Done when

  • Critical user journeys work end-to-end in staging
  • Roles and permissions match the agreed matrix
  • Repeated actions do not create duplicate entities

Deliverables

  • Source repo + deploy notes
  • Admin / operator access credentials
  • Short handoff checklist

Out of scope

  • Content writing and legal copy
  • 24/7 ops / on-call unless agreed

The final acceptance checklist is confirmed in the brief or contract; the list above is a scope alignment guide.

Ballpark estimate

Scope size
Extras

FAQ

Tap a question to expand the answer.

What if a service has no API?

I check official exports and webhooks. Browser automation is a fragile last resort and should not be represented as a stable integration.

Where are tokens stored?

In environment secrets or a dedicated vault with minimum permissions, never in the repository or logs.

Selected portfolio work

employment_cal

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ankiGenAddon

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PDFImageMerger

PDFImageMerger

PDFImageMerger is a Python tool designed to merge images into a single PDF file, specifically targeting folders named 'Passport'. It supports various image f…

Discuss this directionContact form

Tell me the goal, stack constraints, and timeline — I reply on Telegram.

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