Shopify Experienced Middleware Developer (Contract) - North America

Anatta Design • Charleston, SC

2d • $80 - $120

About The Position

We're looking for an expert Middleware Developer to act as the technical bridge between the Shopify Plus ecommerce ecosystem and backend enterprise services. In this role, you will design, build, and maintain the integration layer that ensures seamless data synchronization across different business systems. As a key member of our engineering team, you'll ensure our solutions are performant, reliable, and perfectly aligned with our clients' business needs.
You will be responsible for extracting, transforming, and loading (ETL) complex datasets, ensuring that data flowing between Shopify and internal systems (ERP, CRM, WMS, POS) is accurate, timely, and formatted correctly.

Requirements

• Experience: 3+ years of backend development experience with a focus on middleware, iPaaS (e.g., Celigo, Mulesoft, Workato), or custom integration microservices.
• Shopify Expertise: Deep understanding of the Shopify API ecosystem. You must know the nuances of Shopify’s rate limiting, bulk operations, webhooks, and the transition between REST and GraphQL endpoints.
• Data Handling: Proven ability to read, parse, and transform data structures. Mastery of JSON, XML, CSV, and SQL is essential.
• Programming Languages: Strong proficiency in server-side languages such as Node.js or Laravel/PHP.
• Enterprise Protocols: Experience working with enterprise data exchange protocols, including REST, SOAP, FTP/SFTP, and EDI.
• Version Control: Proficiency with Git and CI/CD pipelines.
• Integrations: Proven integrations with payment gateways, tax engines, loyalty/fraud platforms, ERP, Inventory, OMS.
• Education: Degree or certification in software development.
• Communication: Fluent writing and speaking in English.
• Organization: Good organizational and documentation skills with a detail-oriented mindset.

Nice To Haves

• Experience with cloud functions (AWS Lambda, Azure Functions, or Google Cloud Functions) for serverless data processing.
• Knowledge of queueing systems (RabbitMQ, Kafka, AWS SQS) to manage high-volume data spikes during flash sales.
• Experience integrating with ERP’s, PIM’s, CDP’s, OMS’s, etc.
• Knowledge of Latest Admin Direct API’s.
• Experience in iPaaS and event-driven architectures.
• Observability Implementation (New Relic/Datadog/Sentry, alerts, dashboards, SLIs/SLOs).
• Knowledge of security best practices Tools & Stack (typical).
• Node.js, PHP, Shopify Admin GraphQL, Webhooks, App Bridge.
• CI/CD with GitHub Actions (or similar), Shopify Partners deploy.
• Bonus to have familiarity with inventory management systems, loyalty programs, or other common retail technologies.

Responsibilities

• Integration Architecture: Design and develop scalable middleware solutions to connect Shopify with external enterprise systems (e.g., SAP, Oracle, NetSuite, Salesforce).
• Middleware Experience: Must have hands-on experience with at least one of the following SaaS technologies: Mulesoft, Celigo, Workato, N8N, Pipe17, etc.
• Data Transformation: Write robust code to ingest data from various sources, apply complex business logic to transform data formats (e.g., converting Shopify JSON payloads to SOAP/XML for legacy ERPs), and deliver it to the target system.
• Shopify API Management: Utilize the Shopify Admin API (REST and GraphQL) and Storefront API to manage products, orders, customers, and inventory programmatically.
• Workflow Automation: Automate data flows for critical business processes such as Order-to-Cash, Inventory Synchronization, and Shipment Updates.
• Monitoring & Error Handling: Implement logging, alerting, and retry mechanisms to handle API rate limits, connection timeouts, and data validation errors without disrupting business operations.
• Security & Compliance: Ensure all data in transit is encrypted and handled in accordance with PII and PCI compliance standards.

What This Job Offers

• Career Level: Mid Level