SAP S/4HANA aATP ABAP Developer

Job title: SAP S/4HANA aATP ABAP Developer
Work Location: Irving, TX - 75039- Hybrid
Minimum years of experience: 10
Interview Mode- In-person Interview
Job Description:
We are seeking an experienced SAP S/4HANA aATP (Advanced Available-to-Promise) Technical Consultant to support the design, development, implementation, and optimization of SAP S/4HANA aATP solutions. The ideal candidate will possess strong technical expertise in SAP S/4HANA, ABAP development, system integration, and aATP functionalities, along with a solid understanding of Order-to-Cash (O2C), Supply Chain, and fulfillment processes.
The consultant will be responsible for configuring and enhancing aATP processes, developing technical objects, integrating SAP and non-SAP systems, and supporting business requirements related to inventory availability, product allocation, backorder processing, and demand fulfillment. The role requires close collaboration with business stakeholders, functional consultants, and cross-functional teams to deliver scalable and efficient ATP solutions that improve customer service levels and supply chain responsiveness.

Key Responsibilities
Design, develop, and support SAP S/4HANA aATP technical solutions to meet business requirements across order fulfillment and supply chain processes.
Collaborate with functional consultants and business stakeholders to analyze requirements and translate them into technical designs and system solutions.
Configure and support key aATP functionalities including Product Availability Check (PAC), Backorder Processing (BOP), Product Allocation (PAL), Supply Protection (SUP), Alternative-Based Confirmation (ABC), and Release for Delivery (RFD).
Develop and enhance custom ABAP objects, reports, interfaces, BADIs, user exits, CDS views, OData services, and Fiori applications supporting aATP processes.
Design and implement integrations between SAP S/4HANA and external planning, warehouse management, transportation, CRM, and eCommerce systems.
Support real-time inventory visibility and availability determination processes to ensure accurate order confirmations and commitments.
Perform technical analysis, troubleshooting, and resolution of aATP-related production issues.
Participate in end-to-end implementation, rollout, migration, upgrade, and support projects involving SAP S/4HANA aATP solutions.
Collaborate with SAP SD, MM, EWM, IBP, PP, and TM teams to ensure seamless process integration.
Develop technical specifications, unit test scripts, technical documentation, and knowledge transfer materials.
Conduct performance analysis and system optimization to improve ATP processing efficiency and response times.
Support data migration and cutover activities during S/4HANA transformation and deployment initiatives.
Assist in testing activities including unit testing, integration testing, UAT support, and defect resolution.

Required Technical Skills

SAP S/4HANA aATP
Advanced Available-to-Promise (aATP)
Product Availability Check (PAC)
Backorder Processing (BOP)
Product Allocation (PAL)
Alternative-Based Confirmation (ABC)
Supply Protection (SUP)
Release for Delivery (RFD)
Availability Check Configuration

SAP Technical Expertise
SAP ABAP on HANA
Object-Oriented ABAP
CDS Views
AMDP
OData Services
SAP Fiori
Enhancement Framework
BADIs and User Exits
Smart Forms / Adobe Forms
Workflow Integration

Integration Technologies
IDocs
RFC/BAPI
SAP PI/PO
SAP CPI
API Integration
Web Services
EDI Integration

Functional Understanding:
SAP SD (Order-to-Cash)
SAP MM (Procurement)
SAP EWM
SAP TM
SAP IBP
SAP PP
Supply Chain Fulfillment Processes

Preferred Skills:
SAP S/4HANA Sales and Distribution
SAP EWM Integration
SAP Integrated Business Planning (IBP)
SAP Transportation Management (TM)
SAP Business Technology Platform (BTP)
SAP Fiori/UI5 Development
SAP Event-Based Processing
Performance Optimization on SAP HANA
Cloud Integration Experience