We are seeking an experienced SAP Ariba & SAP S/4HANA Functional Test Engineer with strong expertise in Procure-to-Pay (P2P), Source-to-Pay (S2P), and Serrala FS Accounts Payable (Invoice Automation).

The ideal candidate will be responsible for validating end-to-end procurement and invoice processing business processes across SAP Ariba, SAP S/4HANA, and FS AP solutions.

The role involves functional, integration, system, regression, and user acceptance testing while collaborating with business stakeholders, functional consultants, developers, and integration teams to ensure successful project delivery.

Key Responsibilities :

SAP Ariba & SAP S/4HANA Testing :

- Perform Functional Testing, System Integration Testing (SIT), User Acceptance Testing (UAT), Regression Testing, Smoke Testing, and End-to-End Integration Testing.

- Validate SAP Ariba integration with SAP S/4HANA across procurement and finance business processes.

- Prepare comprehensive Test Strategy, Test Plan, Test Scenarios, Test Cases, Test Scripts, and Test Data.

- Execute manual testing for procurement and invoice processing modules.

- Identify, log, track, and retest defects using ALM/Jira/Solution Manager or equivalent tools.

- Coordinate with Functional Consultants, Developers, Integration Teams, and Business Users during defect resolution.

- Participate in requirement analysis, walkthroughs, and design review sessions.

- Support production validation, cutover activities, and hypercare phases during implementation.

- Validate interfaces between SAP Ariba, SAP S/4HANA, and third-party systems.

- Perform data validation between source and target systems after migration or interface execution.

- Ensure complete traceability between business requirements and executed test cases.

- Support regression cycles after system enhancements, patches, and upgrades.

Source-to-Pay (S2P) & Procure-to-Pay (P2P) Testing :

- Validate complete business lifecycle covering :

1. Strategic Sourcing

2. Supplier onboarding

3. Supplier qualification

4. RFI/RFP creation

5. Auctions

6. Contract management

7. Supplier collaboration

8. Procurement

- SAP Integration

Validate :

1. Posting into SAP S/4HANA FI-AP

2. Accounting document generation

3. Invoice blocking

4. Release procedures

5. Payment proposal validation

6. Error handling

7. Reprocessing failed invoices

8. Interface monitoring

9. Background job execution

10. IDoc processing

11. API validations

SAP S/4HANA Functional Testing :

- Experience validating:

1. Procurement

2. Materials Management (MM)

3. Accounts Payable (FI-AP)

Required Skills :

- SAP: SAP Ariba, SAP S/4HANA, SAP MM, SAP FI-AP, SAP Fiori, Business Partner, Procurement, Invoice Verification.

- Serrala: FS Accounts Payable, Invoice Automation, Workflow Configuration (functional validation), OCR Invoice Processing, Matching Engine.

- Testing: Functional Testing, Integration Testing, SIT, UAT, UiPath Test Suite, SAP CBTA, API Testing using Postman or ReadyAPI.

Qualifications :

- Bachelor's degree in Computer Science, Information Technology, Engineering, or a related discipline.

- 3 to 6 years of experience as an SAP Functional Tester or Functional Consultant with strong Source-to-Pay (S2P) and Procure-to-Pay (P2P) exposure.

- Minimum 2+ years of hands-on experience with Serrala FS Accounts Payable (Invoice Automation).

- Experience in at least one full-cycle SAP S/4HANA implementation or migration project.

- Strong understanding of procurement and accounts payable business processes.

- Hands-on experience testing SAP Ariba integrated with SAP S/4HANA.

- Experience working with SAP Fiori applications related to procurement and invoice processing.

- Knowledge of integration technologies such as SAP CPI/PI/PO, IDocs, APIs, and web services is preferred.

- Familiarity with test management and defect tracking tools.

- Experience working in Agile, Scrum, or Waterfall delivery models.

- Excellent analytical, documentation, stakeholder management, and communication skills.

Preferred Certifications :

- SAP Ariba Certification, SAP S/4HANA Sourcing & Procurement Certification, SAP S/4HANA Materials Management (MM), SAP FI/Finance Certification, ISTQB Certified Tester (Foundation or Advanced), Tricentis Tosca Certification (preferred), SAP Activate Project Management Certification (preferred).

Experience Required :

- Total Experience : 3 to 6 years in SAP Functional Testing or SAP Functional Consulting.

- FS AP Experience : Minimum 2+ years.

- SAP Ariba Experience : 2+ years with integrated S/4HANA environments.

- SAP S/4HANA Experience : Experience in at least one end-to-end implementation, migration, or rollout project.

- Proven experience in end-to-end testing of Source-to-Pay (S2P), Procure-to-Pay (P2P), SAP Ariba, Serrala FS AP, and SAP S/4HANA FI-AP business processes.