Connect the tools your business already uses. I implement a defined data flow, handle failures and make the result visible in your application.

STARTER — $300 / 5 calendar days from the agreed start, with complete requirements. One provider, up to 2 endpoints and one input-to-output action in an existing application.

YOU RECEIVE: One provider, one defined workflow, credential handling in server configuration, agreed failure cases, checks and deployment notes.

LARGER OPTIONS: Webhook workflow: $650 / 9 days — One event type, signature verification where supported, duplicate handling and an agreed retry/error path. Payment checkout: $1000 / 12 days — One provider checkout, one currency, payment-status webhook and status display in an existing app; test-mode validation.

OUTSIDE THIS PACKAGE: Provider fees, account approval/KYC, multi-provider migration and complex subscription, tax or payout logic. Payment packages are verified in test mode; live activation depends on the client’s approved provider account.

BEFORE STARTING: Provider documentation, current app stack, expected input/output and failure behaviour, repository and a test environment. Share production secrets only through an agreed secure method after contracting.

RELEVANT EXPERIENCE: Continuum; Ozon · Price Operations. My role is engineering; design in joint projects is by a designer from the ODD Studio team.

Written communication and source-code handover are included. Model, hosting and provider costs are separate unless explicitly agreed. One active delivery at a time.