CXM Direct

Backend Engineer

• Build and own the connector and adapter layer so providers can be added or replaced through configuration and thin adapters
• Migrate payment methods from redirect flows to server-to-server and embedded flows where supported, and measure the results
• Own reconciliation, transaction status handling, method configuration and payment flows into the client portal downstream of the orchestration layer
• Make transaction status reliable end to end through active polling, idempotent processing and reconciliation
• Build observability over transaction status and provider performance
• Specify and review orchestration platform behavior including transaction state machines, idempotency, polling, routing and cascading rules
• Support integration work for the card programme
• Extend the integration set to acquired entities through configuration rather than new builds
• Take over the integration codebase, strengthen transaction status handling and ship a first server-to-server integration
• Establish the adapter layer, launch providers against it and make transaction status and provider performance observable
• Lead migration to server-to-server and embedded flows across payment methods and extend integrations to other entities

Senior Backend Engineer – Payments

QA Engineer

• Run the full onboarding cycle for new payment providers, from the first technical call through credentials and sandbox access, configuration, test design, UAT, production launch and post-release stabilisation
• Own first-line response for payment incidents, including failed and stuck transactions, unconfirmed payments and method-level anomalies, and drive them to resolution
• Define the acceptance standard for new integrations and make the go or no-go decision before launch
• Read provider API documentation and turn it into implementation-ready specifications for engineering, including edge cases, failure paths and confirmation model behaviour
• Run hands-on verification through manual checkout testing on mobile and desktop, callback verification through Postman, and SQL queries against transaction data
• Maintain the catalogue of payment methods and providers, including capabilities, integration types, testing status and known failure modes
• Build the first capability inventory of all live methods and providers
• Produce a 90-day breakdown of deposit attempts by outcome: completed, declined by the provider, abandoned by the user, abandoned at redirect, and completed but never confirmed back to the company
• Take over incident first line, build the method and provider catalogue, and produce deposit attempt analysis during the first months
• Define and apply the integration acceptance standard to a live provider onboarding by mid-year
• Maintain the catalogue and acceptance gate as the team grows, while a Systems Analyst takes over formal verification

Senior Backend Engineer – Payments

Payment Integrations – Technical QA Manager