Firmosonline.com is up and running; the last piece missing is seamless credit and debit card checkout. I already hold live credentials for my chosen payment gateway, so what I need now is the actual integration and final polish that lets shoppers pay with Visa, MasterCard, and American Express directly on the site. Your work will involve connecting the gateway’s API or official plugin, configuring the keys, endpoints, and webhooks, and making sure the checkout page stays inside PCI-DSS guidelines with SSL enforced at every step. Once everything is wired up, I’d like a round of sandbox tests followed by one live test transaction so we can be certain funds settle correctly. Deliverables • Gateway connected to the live store with Visa, MasterCard, and American Express enabled • Successful sandbox-mode run and a verified live transaction • Brief hand-off notes covering refunds, settlement timing, and where to update keys in the future If you’ve handled card integrations before—whether through direct API calls, hosted fields, or drop-in SDKs—this should be straightforward. I’m ready to provide the gateway login, credentials, and any branding assets as soon as we start, so we can move straight to implementation and testing.