Senior Integration & Web Systems Engineer

Sellmark Corporation • Mansfield, TX

1d • Onsite

About The Position

The Senior Integration & Web Systems Engineer is responsible for designing, developing, and optimizing Sellmark’s web platforms, integrations, and data architecture. This role connects NetSuite (SuiteCommerce), Shopify, Salesforce, and other systems using Celigo iPaaS while ensuring scalability, performance, and reliability.

Requirements

• 3+ years experience in development/integrations
• Experience with Celigo iPaaS
• SuiteCommerce development experience
• Strong SQL and database design
• Shopify experience
• Strong experience with Google Sheets (advanced formulas, automation)
• JavaScript, Python, or Java proficiency

Nice To Haves

• Experience with Alloy
• NetSuite ecosystem knowledge
• AWS or cloud platforms
• Salesforce integrations

Responsibilities

• Develop responsive web applications from scratch
• Manage domains, DNS, and SSL certificates
• Optimize performance, SEO, and UX
• Develop and maintain SuiteCommerce solutions
• Customize themes and modules
• Work with SuiteScript and NetSuite APIs
• Design integrations using Celigo iPaaS
• Integrate NetSuite, Shopify, Salesforce
• Manage APIs, webhooks, and data flows
• Design data models and data lakes
• Develop SQL scripts, views, and procedures
• Optimize performance and ensure data integrity
• Manage Shopify stores and integrations
• Customize themes (Liquid)
• Advanced use of Google Sheets for data analysis and reporting
• Develop complex formulas, queries, and data transformations
• Integrate Google Sheets with other systems via APIs or middleware
• Automate workflows using scripts (Apps Script preferred)
• Develop in JavaScript, Python, Java
• Work with JSON and APIs
• Use GitHub for version control and CI/CD

Benefits

• 401k with company match.
• Excellent Medical, Dental, and Vision Insurance (effective first of the month following 30 days).
• Generous paid time off
• Access to company wellness amenities: gym, sauna, chiropractor, cafeteria, and event space.
• Intensive training program with ongoing professional development and career growth opportunities.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed
• Number of Employees: 11-50 employees