SAP ABAP Developer / Programmer

Expleo • Green Bay, WI

20h • Hybrid

About The Position

Trissential is hiring an experienced SAP ABAP Developer / Programmer to join our client’s team and play a key role in supporting and enhancing SAP HR and Payroll processes. This is a hands-on senior role ideal for someone who understands payroll calculations, CATS, and end-to-end HR process flows, and who can bridge the gap between project-based work and ongoing internal support. You’ll collaborate closely with functional consultants, business analysts, and frontend developers to deliver scalable, high-quality SAP solutions.

Requirements

• 7–10+ years of hands-on SAP ABAP development experience
• Strong expertise in object-oriented ABAP development
• Solid understanding of SAP HR and Payroll processes, including payroll calculations
• Experience working with CATS (Cross-Application Time Sheet)
• Hands-on experience developing and supporting OData services
• Proven ability to work in complex SAP landscapes and enterprise environments
• Strong communication skills and ability to work cross-functionally

Nice To Haves

• Prior experience supporting SAP HR Payroll implementations or enhancements
• Exposure to SAP Fiori / UI5 integrations
• Experience balancing project work with production support responsibilities
• Background working in large, matrixed organizations
• SAP certifications are a plus but not required

Responsibilities

• Collaborate with functional consultants, business analysts, and end users to gather and translate business requirements into technical solutions
• Design, develop, and enhance custom ABAP reports, function modules, BAPIs, classes, and other ABAP objects
• Develop and maintain OData services using SAP Gateway and/or ABAP CDS views to expose backend data for SAP Fiori and other frontend applications
• Implement CRUD operations within OData services, ensuring business logic aligns with HR and Payroll requirements
• Define and structure OData metadata, including entities, associations, and navigation properties
• Perform unit testing and validate ABAP programs and OData services across multiple scenarios
• Troubleshoot and resolve issues using tools such as ABAP Debugger, ST22 dumps, and SAP Gateway logs
• Analyze and optimize ABAP code for performance, particularly for payroll and large-volume data processing
• Partner with SAP Fiori/UI5 developers to ensure seamless backend-to-frontend integration
• Maintain thorough technical documentation covering data flow, logic, and specifications
• Act as a bridge between project delivery and internal SAP support, ensuring continuity and stability

Benefits

• Medical, dental, vision, free tele-health, HSA with company contribution, life and disability insurance, and 401k with matching
• Paid Time Off
• Fully Remote Work Model

What This Job Offers

• Career Level: Senior