SAP BTP/Fiori Lead Developer

Lead Developer for an SAP BTP side-by-side extension project at a major US utility company. You will own the end-to-end technical delivery of a mobile warehouse operations application built with SAPUI5/TypeScript and SAP CAP (Node.js), deployed on SAP BTP Cloud Foundry, and integrated with SAP ECC via Cloud Connector.

The application replaces manual SAP GUI-based warehouse operations with a mobile barcode-scanning Fiori app used by warehouse staff across multiple locations. The solution follows SAP’s Clean Core principle - zero custom ABAP in ECC; all logic resides in a CAP backend on BTP calling standard BAPIs via RFC., Design & Documentation

• Execute the existing solution design across frontend (UI5), backend (CAP/Node.js), and integration (Cloud Connector, RFC/BAPI) layers
• Implement OData V4 service contracts, screen specifications, and UX flows based on the existing solution design
• Resolve technical trade-offs that arise during implementation (e.g., error handling patterns, performance tuning)
• Produce and maintain architecture documentation for PSEG-LI stage gate process and each milestone

Full-Stack Development (Critical Path)

• Build the CAP backend framework: OData V4 services wrapping SAP ECC BAPIs via RFC
• Implement the authentication chain: XSUAA * SAP IAS * Okta (Principal Propagation to ECC)
• Develop shared UI5 components: barcode scanning module (camera + Bluetooth HID), responsive navigation shell, glove-friendly mobile interface
• Build 2-3 reference Fiori modules end-to-end that serve as templates for the offshore team
• Establish TypeScript project structure, build tooling, and coding standards

Integration

• Configure SAP BTP destinations and Cloud Connector for DEV/QAS/PRD landscapes
• Implement and validate Principal Propagation (end-user identity flows from BTP through to ECC)
• Validate standard BAPI inputs/outputs with the SAP functional team
• Troubleshoot RFC connectivity, SNC configuration, and transport issues

Team Leadership

• Guide 1-2 offshore UI5 developers who replicate your reference patterns across remaining screens
• Conduct code reviews and ensure quality/consistency across all modules
• Coordinate with SAP functional lead, BTP admin, and PSEG-LI project team

Testing & Delivery

• Support SIT, UAT, and Go-Live activities
• Provide production support during 90-day hypercare period

• SAPUI5/Fiori development - deep, hands-on experience building Fiori apps (not just configuring standard apps or Fiori Elements annotation-based development)
• TypeScript - the project uses TypeScript for both frontend and CAP backend, in line with SAP’s recommended approach for UI5 development
• SAP CAP (Cloud Application Programming Model) - Node.js runtime, OData V4 service development
• SAP BTP Cloud Foundry - deployment, service binding, subaccount management, MTA builds
• SAP ECC integration via RFC/BAPI - calling standard BAPIs from CAP through Cloud Connector
• XSUAA/SAP IAS - OAuth 2.0 authentication, role-based authorization, Principal Propagation configuration
• SAP Cloud Connector - destination configuration, RFC mapping, SNC setup

Preferred Certifications:

• Solution architecture - ability to design and document a multi-tier cloud application end-to-end
• SAP Warehouse Management (WM) or MM domain knowledge - understanding of MIGO, LT03/LT04/LT12, VL02N, physical inventory transactions
• Barcode scanning in Fiori - experience with sap.ndc.BarcodeScanner or equivalent mobile scanning implementations
• Offline-capable web apps - IndexedDB, Service Workers, sync/conflict resolution patterns