SowmyaSri Cherukuri, Developer in Kitchener, ON, Canada
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SowmyaSri Cherukuri

Verified Expert  in Engineering

SAP Integration Expert and Developer

Kitchener, ON, Canada

Toptal member since February 17, 2025

Expertise
PostmanJiraJavaAutomationDatabase
Bio

Sowmya is an experienced SAP integration consultant with 9+ years of hands-on experience designing and implementing seamless integrations across SAP and non-SAP systems. She specializes in SAP CPI and Process Integration and Orchestration (PI/PO) and has worked on data synchronization, replication, and custom iFlows. A SAP-certified integration developer, Sowmya delivers efficient, scalable integration solutions and is expanding toward SAP BTP solution architecture.

Portfolio

Cognizant
SAP Cloud Platform Integration (CPI), SAP Process Integration (PI)...
Philips
SAP Process Integration (PI), SAP Process Orchestration (PO)

Experience

  • Postman - 10 years
  • SAP IDoc - 10 years
  • SAP HANA - 6 years
  • SAP Cloud Platform Integration (CPI) - 6 years
  • SAP SuccessFactors - 4 years
  • API Management - 3 years
  • SAP Process Integration (PI) - 2 years
  • SAP Process Orchestration (PO) - 2 years

Availability

Full-time

Preferred Environment

Jira, Postman, SoapUI, SAP Cloud Platform Integration (CPI), SAP Process Integration (PI), SAP Process Orchestration (PO)

The most amazing...

...solution I've implemented is a complex SAP CPI for SuccessFactors Employee Central—ensuring seamless data sync, reducing errors, and improving HR efficiency.

Work Experience

Technical Lead

2019 - 2025
Cognizant
  • Implemented SAP Cloud Platform Integrations (CPI) with S/4HANA and SuccessFactors, streamlining data exchange and improving processing time by 40%.
  • Developed Groovy scripts for IDoc-to-flat file conversion, reducing errors by 30% and enhancing automation.
  • Designed API management in SAP Business Technology Platform (BTP), improving security and reducing response time by 50%.
  • Migrated complex legacy integrations to SAP CPI, reducing operational costs by 20% and improving data processing efficiency.
  • Optimized SAP CPI iFlows for Cloud for Customer (C4C) and S/4HANA integration, reducing data processing time by 30% and improving system reliability.
Technologies: SAP Cloud Platform Integration (CPI), SAP Process Integration (PI), SAP Process Orchestration (PO), SAP HANA, SAP S/4HANA, SAP SuccessFactors, Groovy, Groovy Scripting, API Management, SAP Business Technology Platform (BTP), SAP Cloud for Customer (C4C), Automation

SAP PI/PO Consultant

2015 - 2019
Philips
  • Designed and implemented EDI solutions to facilitate seamless data exchange with trading partners to integrate various EDI standards and ensured secure communication through a range of adapters.
  • Designed and implemented EDI integration scenarios (order-to-cash, purchase orders, invoices) using SAP PI, ensuring seamless data exchange with trading partners.
  • Configured and managed AS2, SFTP, HTTP, FTP, and SOAP adapters to ensure reliable communication across systems with secure encryption and authentication.
  • Developed complex mappings for EDI messages (850 Purchase Orders, 810 Invoices, 856 Ship Notices) using Graphical, Java, and XSLT Mappings to transform messages into IDOCs or XML formats for SAP systems.
  • Led unit, integration, and user acceptance testing (UAT) to ensure compliance with partner specifications and internal standards.
  • Contributed to production support and system health checks: Provided live production support, troubleshooted EDI transactions, monitored the ABAP stack, and handled integration engine issues.
  • Created detailed technical documentation (functional specs, process flows) and handled change requests for configuration and mapping adjustments.
Technologies: SAP Process Integration (PI), SAP Process Orchestration (PO)

Experience

SAP CPI for C4C & S/4HANA

Designed and implemented an end-to-end integration between SAP C4C and S/4HANA using SAP CPI. I developed custom iFlows, handled IDoc and OData processing, optimized error handling, and improved data synchronization efficiency.

SAP CPI for SuccessFactors & S/4HANA

Designed and implemented integrations for SuccessFactors with S/4HANA and 3rd-party payroll systems using SAP CPI.

I developed custom inbound and outbound interfaces for employee master data synchronization, ensuring accurate HR data flow. I also configured OData and SOAP APIs to streamline real-time data exchange and built error-handling mechanisms for seamless payroll processing. Finally, I optimized CPI iFlows to enhance performance, reducing integration failures by 40% and improving HR and payroll process efficiency.

SAP SuccessFactors Employee Central to SAP S/4HANA Integration

Developed and customized SAP-delivered iFlows for employee master data replication. I used OData APIs and IDocs for seamless data exchange between SuccessFactors EC and S/4HANA. I also implemented error-handling mechanisms with logging and alerting for smooth operations.

Payroll & Benefits Integration Using SAP CPI

Designed custom iFlows to integrate EC Payroll (ECP) with SAP ERP and third-party payroll systems. I used SOAP and REST APIs for secure data exchange between SuccessFactors EC and external payroll providers. I also configured an SFTP adapter for automated payroll file transfers and error-handling processes.

Migration from SAP PI/PO to SAP CPI for SuccessFactors Integrations

Migrated existing SAP PI/PO interfaces for SuccessFactors EC to SAP CPI. I replaced PI message mappings with SAP CPI iFlows using graphical mapping and Groovy Scripts. I also ensured seamless authentication using OAuth and SAML for secure API calls.

Education

2010 - 2014

Coursework Toward a Degree in Information Technology

GVP College of Engineering for Women - India

Certifications

MARCH 2021 - DECEMBER 2025

SAP Certified Associate - Integration Developer

SAP

Skills

Libraries/APIs

SOAP APIs

Tools

Postman, SoapUI, Jira, SAP Cloud for Customer (C4C), SAP SuccessFactors, SAP S/4HANA

Languages

Java, Groovy

Paradigms

Automation

Platforms

SAP HANA

Storage

Data Synchronization

Other

SAP Cloud Platform Integration (CPI), SAP IDoc, OData, SAP Process Integration (PI), SAP Process Orchestration (PO), API Management, Groovy Scripting, SAP Business Technology Platform (BTP), End-to-end Implementation (E2E), Data Flows, SAP Open Data Protocol (OData), SOAP, ECP

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