This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Information Systems Engineer 2 based in the United States. This role supports the technical certification and testing lifecycle for merchant and point-of-sale environments across assigned portfolios.You will coordinate complex certification projects from initial scope discovery through laboratory testing, production release, and post-launch stabilization.The position combines systems engineering, technical QA, payment processing, network connectivity, SQL-based data validation, and operational troubleshooting.You will work closely with external clients, engineering teams, network operations, product support, and other cross-functional stakeholders.A strong focus is placed on data integrity, technical specification compliance, secure connectivity, and reliable transaction processing.You will also have opportunities to introduce AI-assisted diagnostics, automation, and process improvements that reduce manual effort and operational risk.This is a strong opportunity for a technically curious professional who enjoys solving complex problems in a fast-paced, ... Click Apply to read the full job description.