Senior Integration Engineer – Contractor

October 22

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Tech Holding

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B2B • Enterprise • SaaS

Tech Holding is a global technology solution company that provides Professional Services, Managed Services, and Staffing Solutions. Specializing in digital transformation and business growth, the company leverages its extensive industry knowledge and technological expertise to assist businesses in navigating the digital landscape. Tech Holding is committed to optimizing business operations and supplying the necessary talent to help clients achieve strategic objectives, making them a trusted partner for leading companies worldwide.

51 - 200 employees

🤝 B2B

🏢 Enterprise

☁️ SaaS

📋 Description

• 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.

🏖️ Benefits

• Remote and flexible work environment. • Exposure to enterprise clients and transformative cloud projects. • Opportunity to directly impact Tech Holding's growth and client success. • Competitive compensation package.