Senior Specialist - Package Implementation

• *Role description**

ob Description: SAP ABAP Core – Vertex Integration

Role Overview

The ABAP Consultant is responsible for designing, developing, and supporting SAP–Vertex integration components that enable real\-time tax calculation and compliance across SAP business processes (FI, SD, MM, BRIM).

Key Responsibilities

SAP–Vertex Integration Development

• Develop and enhance RFC\-based integration with Vertex using the SAP Interface Component (SIC).

• Build and maintain outbound tax request interfaces (SAP Vertex) and inbound response processing (Vertex SAP).

• Implement logic to pass transactional data (invoices, POs, billings) for tax calculation.

• Integration follows an RFC\-based pattern between SAP and Vertex SIC as outlined in LTM Proposal Vertex and E‑Invoicing SAP DRC LTM Prog SAP DRC PDF.

Interface Technical Object Development (RICEF)

• Develop reports, interfaces, conversions, enhancements, and forms for Vertex\-enabled processes.

• Build ALE/IDoc, Proxy, and Web Service–based integrations.

• Create custom function modules for handling tax request and response processing.

• Apply enhancements through BADIs, user exits, and enhancement spots.

• Utilize ABAP interface capabilities such as ALE/IDoc, Web Services, and enhancements.

Tax Data Mapping \& Logic

• Map SAP data elements (company code, plant, jurisdiction, material, customer, vendor) to the Vertex tax engine.

• Implement pre‑ and post‑processing logic for tax determination.

• Perform tax‑specific validations and error handling.

• Vertex process includes tax determination, jurisdiction mapping, and event processing as detailed in LTM Proposal Vertex and E‑Invoicing SAP DRC LTM Prog SAP DRC PDF.

Integration with SAP Modules

* Support integration across SAP modules

– FI: AR/AP invoices

– SD: Sales orders and billing

– MM: Procurement and POs

• Enable integration for OTC, PTP, and Finance processes.

• Vertex integration spans FICO, PTP, and OTC modules as referenced in LTM Vertex and E‑Invoicing Proposal LTM Vert Proposal PDF.

Testing \& Debugging

• Perform Unit Testing (UT) and System Integration Testing (SIT).

• Debug RFC calls, IDocs, and interface failures.

• Support UAT cycles and resolve production issues.

Performance Optimization

• Optimize ABAP programs for high‑volume transactions and real‑time tax processing.

• Use SAP performance tools (ST05, SE30, ATC) as required.

Support \& Enhancements

• Provide production support for Vertex‑integrated processes.

• Analyze and resolve tax calculation issues.

• Implement change requests and regulatory updates.

Documentation \& Governance

• Prepare Technical Design Documents (TDD) and interface specifications.

• Follow coding standards, transport procedures, and peer review practices.

Required Skills

Core ABAP

• Strong hands‑on experience with RICEF development, OOPS ABAP, RFCs, BAPIs, and Function Modules.

• Proficiency in ALE/IDoc, Proxy, and Web Service development.

• Experience implementing enhancements using BADIs and user exits.

• *Skills** **Mandatory Skills :** GCP Vertex AI, HANA ABAP (CDS\-AMDP\-RAP), RICF\-SPDD\-SPAU\-ATC Remediation

• *About LTM**

LTM is an AI\-centric global technology services company and the Business Creativity partner to the world’s largest and most disruptive enterprises. We bring human insights and intelligent systems together to help clients create greater value at the intersection of technology and domain expertise. Our capabilities span integrated operations, transformation, and business AI — enabling new ways of working, new productivity paradigms, and new roads to value. Together with over 87,000 employees across 40 countries and our global network of partners, LTM — a Larsen \& Toubro company — owns business outcomes for our clients, helping them not just outperform the market, but to Outcreate it. Please also note that neither LTM nor any of its authorized recruitment agencies/partners charge any candidate registration fee or any other fees from talent (candidates) towards appearing for an interview or securing employment/internship. Candidates shall be solely responsible for verifying the credentials of any agency/consultant that claims to be working with LTM for recruitment. Please note that anyone who relies on the representations made by fraudulent employment agencies does so at their own risk, and LTM disclaims any liability in case of loss or damage suffered as a consequence of the same. Recruitment Fraud Alert \- https://www.ltimindtree.com/recruitment\-fraud\-alert/