Principal Software Engineer– EDI & Integrations, EDI and Integrations

About the role: We are seeking a Software Engineer specializing in EDI & Integrations, with experience in enterprise B2B/EDI integration and Integrations middleware technologies, to drive technical excellence, platform ownership, and seamless integration across GSK's Commercial and External Partner ecosystems. This role demands deep technical expertise in EDI & middleware Technologies. The engineer will partner with Product Management, Partner Operations, and business stakeholders to deliver secure, scalable, and reliable integration solutions.   Key Responsibilities:  1. Platform Ownership & Technical Leadership • Design, develop, implement, and support end-to-end B2B, EDI, and cloud integration solutions including configurations and customizations. • Serve as a technical authority for EDI and integration design, defining canonical data models, reusable patterns, and coding standards. • Implement and enforce ITMS (IT Management System) controls, ensuring compliance, audit readiness, and operational excellence in a regulated environment. • Collaborate with business, Order to Cash, SAP, external partner teams, and vendor/consultant resources to deliver integration outcomes on time and to standard. 2. EDI Mapping, Transformation & Order-to-Cash Expertise • Apply strong expertise in Order-to-Cash (O2C) business processes and EDI transactions. • Develop and maintain EDI mappings and transformations, including source-to-target mapping specifications, partner-specific implementations, business validations, and cross-reference management. • Integrate enterprise applications with SAP/ERP systems and with external customers, distributors, wholesalers and supply chain partners. 3. Trading Partner Onboarding, Protocols & Security • Lead EDI partner onboarding, B2B integrations, and trading partner management, from requirements and testing through certification and go-live. • Configure and support B2B communication protocols such as AS2, SFTP, FTPS, OFTP2, HTTPS, IBM MQ, REST APIs, and SOAP services. • Implement and maintain secure integration solutions using SSL/TLS, PGP encryption, digital certificates, digital signatures, OAuth, and JWT authentication, including certificate lifecycle management. 4. Azure Cloud Integrations & API Enablement • Develop scalable integrations using Azure services – API Management, Service Bus, Functions, Logic Apps, Log Analytics, Azure Monitor, and Application Insights. • Enable API-led and event-driven patterns that extend EDI and B2B flows to cloud SaaS and enterprise applications. • Contribute to cloud integration initiatives and modernization of legacy middleware toward cloud-native and hybrid integration patterns. 5. Production Support, Operations & Continuous Improvement • Lead L3 production support: troubleshoot complex integration issues, perform root cause analysis, and drive permanent fixes. • Support global EDI operations, including incident management, platform upgrades, disaster recovery planning, performance tuning, and high availability of business-critical integration services. • Implement automation, monitoring, DevOps best practices to improve reliability and accelerate delivery. • Stay current on B2B, middleware, and cloud integration trends, and share knowledge through documentation and mentoring. Required Qualifications: • 10+ years of experience in enterprise B2B/EDI integration and middleware technologies. • Strong hands-on expertise in at least one of the EDI & Integrations technologies (IBM DataPower Gateway, SAP Integration Suite, Mulesoft, Boomi, IBM Sterling B2B Integrator). • Deep knowledge of O2C processes and ANSI X12 EDI transactions (850, 855, 860, 856, 810, 820, 997, 844, 845, 849, 852, 867). • Proven experience with mapping and data formats – WTX/ITX