Senior Payment Gateway Engineer - Secure UCO & Salesforce

Pentangle Tech Services | P5 Group is seeking an experienced Payment Gateway Specialist in Canada to own end-to-end integrations with CyberSource UCO, Flex Microform, and Salesforce Commerce/Experience Cloud. You will lead secure tokenization flows, implement BFF services with Node.js/Express, and enforce PCI-DSS compliance and security hardening across production environments.

You will communicate security risks clearly to clients and stakeholders, manage integration lifecycles, and drive