Senior Developer – OMS (L2-L3 Support)

We are seeking an experienced Senior Developer to own Level 2 and Level 3 production support for IBM Sterling Order Management Systems (OMS) & Call Center(CCC) Modules. The role focuses on ensuring stability, reliability, and performance of enterprise eCommerce order flows across OMS, commerce integrations, and downstream systems. Key ResponsibilitiesL2 / L3 Production Support (Primary – OMS Ownership)Own L2–L3 production support for OMS & CCC modules and related servicesDiagnose and resolve complex production issues involving:Order orchestration, routing, splits, fulfillment, cancellations, returns, and refundsInventory availability, allocation, and reservation failuresPayment, refund, and tax-related OMS workflowsIntegrations with ERP, WMS, CRM, carriers, and third-party systemsPerform detailed root cause analysis (RCA) and implement permanent corrective fixesLead resolution of critical incidents, major outages, and on-call support rotationsCommerce Cloud & Integration Support (Secondary)Support OMS interactions with Commerce Cloud platforms, including SFCC, during order creation and checkoutTroubleshoot issues related to order ingestion, pricing, promotions, payment callbacks, and reconciliationDebug API-based and event-driven integrations between commerce, OMS, and downstream systemsDevelopment & Continuous ImprovementDesign and implement production hotfixes, patches, and minor enhancementsReview code with a production stability and supportability mindsetIdentify and address performance bottlenecks and reliability gapsContribute to preventive fixes and operational hardening initiativesOperations & CollaborationSupport releases, deployments, and post-production validationsWork closely with L1 support, QA, DevOps, architects, and business stakeholdersCreate and maintain technical documentation, SOPs, runbooks, and knowledge articlesMentor junior developers and support engineers on L2–L3 support practicesEnsure adherence to ITIL processes, including Incident, Problem, and Change Management

Bachelor's degree in Computer Science, Engineering, or equivalent hands-on experience. 5+ years of experience in application development and production support.