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We're seeking a Senior Integration Engineer to lead the modernization of our e-commerce data infrastructure. This critical role focuses on building real-time integrations between our NetSuite ERP and Shopify Plus e-commerce platform using the Celigo iPaaS. You'll design and implement event-driven integration flows that eliminate overselling, accelerate order processing, and provide real-time data synchronization across our core business systems. This role is essential to decommissioning our legacy middleware and establishing a modern, scalable integration architecture. This is hands-on integration development work. You'll spend 80% of your time building Celigo flows, 15% writing NetSuite customizations, and 5% configuring Shopify APIs.
Job Responsibility:
Design and build event-driven integration flows in Celigo for real-time inventory synchronization between NetSuite and Shopify
Develop bidirectional order sync integrations to push Shopify orders into NetSuite for fulfillment and financial reconciliation
Implement complex data transformation and mapping logic to ensure data integrity across systems
Build error handling, retry logic, and idempotency controls for mission-critical data flows
Configure monitoring, logging, and alerting systems to enable proactive issue detection
Write SuiteScript 2.0 code to implement validation rules, custom workflows, and import processing logic
Develop RESTlets and custom endpoints to support integration requirements
Design and implement data integrity controls within NetSuite's import workflows
Configure Shopify webhooks for inventory updates, order creation, and customer data changes
Integrate with Shopify REST and GraphQL APIs for product, inventory, and order management
Implement proper webhook handling with authentication, validation, and idempotency
Conduct technical audits to identify all integration points requiring migration
Document integration architecture, data flows, and operational runbooks
Implement comprehensive observability (monitoring, alerting, logging) for all integration flows
Conduct integration testing, performance testing, and User Acceptance Testing (UAT) coordination
Create technical documentation and train operations teams on new workflows
Requirements:
3+ years of hands-on experience building production integration flows in Celigo iPaaS
Deep knowledge of Celigo's connectors, flow builder, mapping tools, and error handling capabilities
3+ years of NetSuite development experience with strong SuiteScript 2.0 skills
Hands-on experience building RESTlets, scheduled scripts, user event scripts, and workflows
Deep understanding of NetSuite data model (customers, items, sales orders, inventory, locations)
Knowledge of NetSuite's role-based permissions, saved searches, and customization framework
2+ years working with Shopify APIs (REST, GraphQL, Admin API, Storefront API)
Experience configuring and consuming Shopify webhooks for real-time events
Understanding of Shopify data model (products, variants, inventory, orders, customers, fulfillments)
Knowledge of Shopify Plus features and API differences from standard Shopify
Strong understanding of event-driven architecture and real-time data synchronization
Experience designing robust error handling, retry logic, and dead letter queue patterns
Knowledge of idempotency, eventual consistency, and distributed system challenges
Ability to design data validation rules and integrity controls
Understanding of API design principles, RESTful patterns, and webhook best practices
Experience with integration monitoring, observability, and alerting strategies
A good understanding of e-commerce workflows: inventory management, order fulfillment, returns processing
Nice to have:
Celigo certification (Integrator or Architect level)
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