> Markdown version of [/jobs/ext/2819065-sap-s-4hana-abap-developer-brownfield-greenfield](https://www.wearedevelopers.com/jobs/ext/2819065-sap-s-4hana-abap-developer-brownfield-greenfield). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # SAP S/4HANA/ABAP Developer (Brownfield/Greenfield) - **Company:** Peraton Inc - **Location:** Reston, VA, United States - **Experience:** Expert - **Salary:** $86,000.0 - $138,000.0 - **Contract:** Permanent contract - **Skills:** Advanced Business Application Programming (ABAP), Microsoft Biztalk Servers, Configuration Management, Custom Software, Electronic Data Interchange (EDI), Middleware, IDoc, Role-Based Access Control, Release Management, Migration Manager, SAP (Applications), SAP CRM, Simple Object Access Protocol (SOAP), Software Deployment, Data Streaming, Systems Integration, Sap Fiori, SAP S/4HANA, Restful APIs - **Published:** September 10, 2026 - **Apply:** https://diversityjobs.com/main/sendform/8/8/28176/1/18238132?backUrl=%2Fcareer%2F18238132%2FSap-S-4hana-Abap-Developer-Brownfield-Greenfield-Virginia-Reston ## About the Role * Bachelor's degree with 5 years of relevant experience * S/4HANA Expertise: Minimum of 5 years of direct S/4HANA experience. * Migration Experience: At least 5 years of hands-on SAP Brownfield migration experience. * Integration Stack: Proven working experience with EDI (IDocs), integrations with SOAP and REST, and specific experience connecting SAP with BizTalk. * Solid understanding of both Greenfield and Brownfield development strategies. * Must be a US Citizen or Green Card Holder * Must be able to obtain/maintain the required agency clearance., * Prior experience supporting the CDC or other Federal Government programs. * Active CDC Clearance. * Experience working in highly regulated public-sector environments. * Strong cross-functional communication skills. ## Description We are seeking a highly skilled SAP S/4HANA/ABAP Developer (Brownfield/Greenfield) to support a critical modernization initiative for the Centers for Disease Control and Prevention (CDC). This role is instrumental in delivering a stable, scalable, and well-documented SAP S/4HANA Customer Management (CM) solution as part of the agency's transition from SAP CRM. The ideal candidate will bring S/4HANA experience, specifically within Brownfield migrations, custom development, and complex middleware integrations connecting SAP with BizTalk., Lead Brownfield technical development efforts to transition custom SAP CRM code to SAP S/4HANA Customer Management (CM). * Code Remediation: Optimize legacy code for compatibility and performance within the S/4HANA environment, conducting thorough impact analysis and testing. * Migration Strategy: Execute technical workstreams for SAP Brownfield conversions, ensuring system stability during the transition from legacy environments. Advanced Integration & Middleware * Architect Interfaces: Design and develop robust integrations using EDI (IDocs) for asynchronous data exchange. * Modern Connectivity: Implement and manage integrations using SOAP and REST web services. * Middleware Management: Lead integration activities specifically connecting SAP with BizTalk to ensure seamless data flow across the agency's landscape. Fiori Enablement * Deploy Applications: Enable and deploy SAP Fiori applications to modernize the user experience. * Configuration: Design and configure Fiori Spaces, Pages, and Catalogs while collaborating with Security teams for role-based access control. Governance & Best Practices * Apply best practices in Change Management, Release Management, and Configuration Management within a structured federal framework. * Ensure thorough technical documentation to mitigate migration risk and support long-term sustainability