Job Title: Functional Specialist QA (ACH & ISO 20022) Location: Remote Duration: 12 Months Ensure the quality, compliance, and resilience of ACH processing across NACHA and ISO 20022 rails. Design and execute automated test plans that validate file formats, payment messages, risk controls, and endtoend operational flows. Role Summary You will act as the ACH and ISO 20022 quality gatekeeper, validating NACHA file structures and ISO 20022 payment messages, testing ACH Positive Pay and debit fil