Top 3 must have s: Knowledge of NACHA or ISO20022, Knowledge as Quality Engineer JD: Ensure the quality, compliance, and resilience of ACH processing across NACHA and ISO20022 rails. You ll design automated test plans that validate NACHA file format (File/Batch/Entry/Addenda) and ISO20022 payment messages (e.g., pain, pacs, camt), verify ACH Positive Pay and other risk controls, and ensure coverage for returns/NOCs/IAT, micro-entries, same day settlement, and rule change regression. This role de