ABAP Developer
Software Engineering · Contractor
Posted on Oct 27, 2026
Senior SAP ABAP & Integration Suite Developer
ABAP on HANA | S/4HANA | SAP BTP | Cloud Integration / CPI
Location: United States — Hybrid
Opportunity Type: Contract
Schedule: Standard U.S. business hours
Travel: Required
Build the SAP solutions that connect enterprise operations.
CornerStone Technology Talent Services (TTS) is seeking a Senior SAP ABAP & Integration Suite Developer who combines deep SAP development expertise with hands-on integration delivery. This opportunity supports enterprise SAP modernization, connecting business applications while advancing S/4HANA development and cloud integration capabilities.
The ideal candidate can own both sides of an interface: developing efficient ABAP backend logic and building reliable integration flows in SAP Integration Suite. You should be comfortable translating business requirements into technical designs, troubleshooting across connected systems, and carrying solutions through testing, cutover, and production support.
What You’ll Do
CornerStone TTS connects experienced technology professionals with organizations tackling complex business and technology challenges. Backed by CornerStone’s more than 30 years in staffing, our specialized recruiting team understands enterprise applications, integration platforms, and the expertise required to deliver successful modernization initiatives.
We bring clear communication, personal recruiting support, and a focus on opportunities that align with your technical strengths and career goals.
If you’ve built both the ABAP backend and the integration that connects it to the enterprise, we’d like to connect with you.
ABAP on HANA | S/4HANA | SAP BTP | Cloud Integration / CPI
Location: United States — Hybrid
Opportunity Type: Contract
Schedule: Standard U.S. business hours
Travel: Required
Build the SAP solutions that connect enterprise operations.
CornerStone Technology Talent Services (TTS) is seeking a Senior SAP ABAP & Integration Suite Developer who combines deep SAP development expertise with hands-on integration delivery. This opportunity supports enterprise SAP modernization, connecting business applications while advancing S/4HANA development and cloud integration capabilities.
The ideal candidate can own both sides of an interface: developing efficient ABAP backend logic and building reliable integration flows in SAP Integration Suite. You should be comfortable translating business requirements into technical designs, troubleshooting across connected systems, and carrying solutions through testing, cutover, and production support.
What You’ll Do
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Design, develop, and optimize SAP applications using ABAP on HANA, object-oriented ABAP, CDS views, and AMDP.
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Build and maintain OData services through SAP Gateway/SEGW and RAP, supporting Fiori applications and enterprise integrations.
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Develop SAP Integration Suite Cloud Integration/CPI iFlows, including mappings, Groovy scripts, routing, exception handling, and monitoring.
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Connect SAP and external applications using REST, SOAP, OData, IDoc, SFTP, JDBC, and AS2 adapters as required.
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Create and enhance ABAP interfaces using IDocs, BAPIs, RFCs, and proxies, along with BADIs, user exits, and the enhancement framework.
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Support migration of legacy SAP PI/PO interfaces to SAP Integration Suite, including dependency analysis, interface redesign, testing, and cutover.
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Apply clean-core principles and side-by-side extension approaches to support maintainable S/4HANA solutions.
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Configure and troubleshoot integration security and connectivity using OAuth, certificates, SAP Cloud Connector, and SAP BTP destinations.
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Diagnose performance issues across ABAP code, database access, services, and integration flows.
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Prepare technical specifications, develop reports and Adobe Forms/SmartForms, execute unit and integration testing, and support SIT, UAT, and production deployment.
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Collaborate with functional consultants, architects, and business stakeholders in an Agile/DevOps environment using Git and SAP transport management practices.
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15+ years of overall relevant SAP technical experience, including 10+ years of hands-on ABAP development.
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Participation in at least two end-to-end SAP ECC or S/4HANA implementation or migration engagements.
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Strong practical expertise in ABAP OO, CDS, AMDP, OData, RAP, and performance tuning.
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Demonstrated experience independently designing, building, deploying, and supporting SAP Cloud Integration/CPI interfaces.
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Strong understanding of interface design, data mappings, error handling, monitoring, and secure connectivity.
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Experience developing SAP enhancements and backend services that support business processes and Fiori applications.
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Ability to explain your technical decisions, document solutions clearly, and resolve issues across application and integration layers.
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Availability for a hybrid work arrangement and required travel.
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SAP API Management, Event Mesh, and Open Connectors.
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SAP BTP development and side-by-side extensions.
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SAP PI/PO modernization and interface migration.
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Integration Advisor and B2B/EDI integrations.
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Git, CTS+, and coordinated transport and release management.
CornerStone TTS connects experienced technology professionals with organizations tackling complex business and technology challenges. Backed by CornerStone’s more than 30 years in staffing, our specialized recruiting team understands enterprise applications, integration platforms, and the expertise required to deliver successful modernization initiatives.
We bring clear communication, personal recruiting support, and a focus on opportunities that align with your technical strengths and career goals.
If you’ve built both the ABAP backend and the integration that connects it to the enterprise, we’d like to connect with you.