CorServ

Systems Engineer

• Help build the next generation credit card processing platform that powers real-time financial transactions
• Design, optimize, and support high volume transaction processing systems in a 24/7 production environment
• Build and support operational systems responsible for transaction processing, reconciliation, data integrity, and reporting
• Design, build, and maintain batch interfaces, backend services, and API integrations supporting transaction processing and operational reporting
• Demonstrable fluency in utilizing AI tools and optimizing workflows to incorporate agentic AI
• Support and enhance existing data pipelines and reporting frameworks using Microsoft SQL and other development tools
• Lead the resolution of ambiguous or complex technical problems, applying strong analytical and problem-solving skills to deliver effective solutions
• Write clean, maintainable, and well-tested code, while contributing to strong engineering practices and testing standards
• Follow secure coding standards and ensure all systems comply with data protection, security, and privacy requirements
• Translate business requirements into scalable technical solutions, clearly communicating trade-offs between speed, scalability, and maintainability
• Contribute to the growth of the engineering team through knowledge sharing, documentation, and technical demonstrations

Senior Systems Engineer

Financial Crime

• Work cases making outbound calls to verify suspected fraudulent authorizations
• Work chargeback and dispute cases for VISA and Mastercard programs as needed
• Work closely with the Fraud Analyst and Risk Manager to identify fraud patterns and resolve trends
• Review FDWC cases
• Make outbound calls/emails to cardholder to verify authorizations
• Review suspect payments
• Review active fraud patterns as needed
• Act as secondary to Fraud Analyst for administration
• Other duties as assigned

Fraud Detection Analyst

Conversion Rate Optimizer

• Coordinate and execute system conversion activities with precision, ensuring data integrity and alignment with project timelines
• Analyze and map data between source systems and target platforms, identifying discrepancies and resolving issues proactively
• Perform data validation, reconciliation, and quality assurance testing throughout all conversion phases (pre-conversion, conversion, post-conversion)
• Troubleshoot and resolve conversion-related issues; escalate complex problems when appropriate
• Document conversion processes, mappings, reconciliation results, and testing outcomes for compliance and future reference
• Provide post-conversion support to internal teams and clients to ensure a smooth operational transition
• Collaborate with partners to define conversion requirements, establish milestones, monitor progress, and validate results
• Manage configurations within the Fiserv Optis Platform, Decision Quest (DQ) logic, and Rewards structures
• Maintain a deep understanding of system functionality, data structures, and integration points across the Fiserv ecosystem
• Manage inserts and messaging by building and testing requirements through Fiserv PCF, PCS, and DQ
• Own the setup, testing, and ongoing maintenance of settings within PCF
• Own the setup and ongoing maintenance of decision logic criteria within DQ
• Manage the setup and testing of Rewards structures using Fiserv DMM tables and Rule logic
• Identify opportunities to streamline conversion processes, optimize workflows, enhance automation, and improve integration efficiency
• Ensure all work adheres to company policies, regulatory standards, and financial industry best practices
• Lead Fiserv-related projects by coordinating testing, validation, and implementation with internal stakeholders
• Support configuration updates, integration enhancements, and cross-functional operational initiatives
• Perform other duties as assigned

Senior Systems Engineer

Fraud Detection Analyst

Senior Conversion Analyst