Lazer is hiring a Senior Back-End Engineer – Integrations & Systems Architecture to lead complex Shopify integrations with ERPs, OMS, CMS platforms, and third-party systems. You'll be working at the intersection of commerce infrastructure and backend engineering, designing scalable integration pipelines that power global storefronts.

What You'll Do

Develop and maintain custom backend integrations for Shopify with ERP, OMS, and CMS systems
Build and deploy services using Node.js, Remix, and Next.js
Handle data migration and data integration tasks from legacy systems to Shopify
Work with platforms like Manhattan, Netsuite, D365, Contentful, Strapi, and Sanity
Design and manage PostgreSQL schemas and data transformations
Utilize iPaaS tools where needed (e.g., Celigo, MuleSoft, Workato)
Collaborate with client stakeholders and technical teams to ensure secure and reliable data flows
Monitor, document, and optimize integration pipelines

What We're Looking For

Extensive experience with Shopify backend integrations
Proficient in Node.js, Remix, and Next.js
Solid understanding of data migration, data mapping, and ETL processes
Experience working with ERPs (D365, Netsuite), OMS (Manhattan), and CMS platforms
Skilled in PostgreSQL and API authentication flows
Familiar with iPaaS solutions and cloud deployment best practices
Strong communicator with the ability to collaborate across teams and time zones

Nice to Have

Experience with Shopify Functions
Familiarity with POS Extensions
Knowledge of cloud platforms (e.g., AWS, GCP, Vercel)

Technical Stack

Node.js, Remix, Next.js
PostgreSQL
Shopify, ERP, OMS, CMS
iPaaS

Team & Environment

Lazer is composed of 80+ senior engineers and designers. You'll join part of Lazer Commerce, a specialized team within Lazer focused on the Shopify ecosystem.