Sathiyabalan

At SAP Taulia — a leading fintech under SAP's umbrella — I architect and deliver enterprise-grade integration solutions on SAP BTP Integration Suite, connecting global ERP ecosystems with AP/AR, Supply Chain Finance, and S/4HANA Public Cloud. I own the full integration lifecycle: design, development, security, deployment, and monitoring at scale.

• Designed and delivered 45+ production-grade SAP BTP/CPI integration flows across AP/AR, Supply Chain Finance, and SAP Business Network — reducing customer onboarding cycles by 50%
• Built fault-tolerant, observable interfaces with retry logic, exception subprocesses, and dead letter queues — monitored via SAP Cloud ALM, improving incident response by 40%
• Delivered large-scale data mapping workflows maintaining 99.9% accuracy across mission-critical financial interfaces
• Implemented GitHub Actions CI/CD pipelines for automated iFlow deployment — cutting release time by 35% and post-release defects by 60%
• Enforced enterprise-grade security across all integrations — mTLS certificate rotation, OAuth 2.0, Principal Propagation, and IAS-based authentication
• Leveraged SAP Document AI for intelligent document parsing, significantly reducing manual processing effort across AP workflows

During my tenure at Cognizant, I led integration architecture and SAP development across multiple Fortune 500 clients — spanning SAP PI/PO to SAP BTP migrations, A2A/B2B interface design, and full-stack ABAP development. I delivered end-to-end integration solutions across finance, supply chain, and CRM landscapes.

• Architected and migrated 20+ ECC/CRM interfaces to SAP S/4HANA & SAP BTP — reducing overall integration costs by 40%
• Designed and delivered A2A/B2B interfaces using SAP PI/PO, CPI, ABAP, OData, SOAP, and IDoc — processing millions of transactions across AP/AR and Supply Chain workflows
• Delivered 100+ ABAP/RAP/Fiori/UI5 solutions including custom RFCs, BAPIs, BADIs, and IDoc enhancements — improving operational efficiency by 25%
• Built ABAP-based data conversion and migration programs for AP/AR and Supply Chain Finance transformation projects
• Optimized OData services, CDS views, and AMDP logic for high-performance real-time integration scenarios
• Designed integration orchestration, error-handling, and automated testing frameworks for mission-critical enterprise interfaces

At SAP Labs, as part of the Public Service team, I developed and enhanced SAP front-end and back-end applications — building secure, scalable integrations between SAP Fiori/UI5, SAP Gateway, and S/4HANA systems for public sector clients.

• Built 10+ SAP Fiori/UI5 applications with OData services tailored for public sector workflows — improving user engagement by 30%
• Developed and optimized ABAP/CDS/AMDP backend services, improving application performance by 40%
• Delivered secure integrations using REST/OData, RFC modules, and SAP Gateway — enabling seamless UI-to-backend connectivity
• Collaborated closely with SAP product teams to align implementations with SAP UX best practices and design standards

At Arteria Technologies, I began my SAP integration career working with manufacturing clients — designing and automating PI/PO-based A2A/B2B interfaces that connected ERP systems with suppliers, logistics partners, and financial systems.

• Designed and automated 30+ SAP PI/PO integration interfaces for manufacturing workflows — processing over 100,000 monthly transactions and reducing manual processing by 60%
• Built A2A/B2B integrations using SOAP, REST, IDoc, RFC, SFTP, XML, and flat file patterns for logistics, procurement, and finance processes
• Developed message mappings, UDFs, and XSLT transformations to handle complex data format conversions across manufacturing supply chain systems
• Implemented monitoring, alerting, and error-handling routines to ensure interface reliability and reduce downtime in production environments