Integrations Engineer II (API)

• Design, develop, test, and support API-based integrations with customers and vendors, including REST and SOAP web services.
• Gather and translate business and technical requirements from customers, vendors, and internal teams into working integration solutions.
• Build and maintain authentication, authorization, and data mapping logic for inbound and outbound API connections (e.g., OAuth, API keys, tokens).
• Monitor integration performance and data flow, proactively identifying and resolving errors, failures, or data discrepancies.
• Collaborate with TMS, WMS, ERP, and EDI teams to ensure integrations align with broader system architecture and data standards.
• Develop and maintain clear technical documentation, including API specifications, data mapping guides, and integration runbooks.
• Partner with customers and vendors during onboarding to scope, test, and validate new integrations through go-live.
• Troubleshoot integration issues across the full stack - from API payloads and authentication to downstream system processing.
• Support security and compliance requirements related to API access, data handling, and third-party connections.
• Participate in code reviews, testing, and continuous improvement of integration tools, patterns, and processes.
• Track and manage integration work through Jira and support requests through Freshservice.

• Bachelor’s degree in Information Technology, Computer Science, Supply Chain, or a related field; or equivalent work experience.
• 2-4+ years of experience building or supporting API integrations, preferably in a logistics, supply chain, or transportation environment.
• Experience working with REST and/or SOAP APIs, including authentication methods such as OAuth 2.0 and API key management.
• Experience integrating with or supporting TMS, WMS, or ERP platforms is a plus.
• Familiarity with EDI concepts and X12 transaction sets is a plus, but not required.
• Knowledge of NetSuite and/or MercuryGate is a plus, but not required.
• Strong analytical and problem-solving skills.
• Effective written and verbal communication skills.
• Ability to manage multiple priorities in a fast-paced environment.
• Proficiency in Microsoft Office (Excel, Word, Outlook).
• Experience with Jira for ticket tracking and project management is a plus.
• Experience with Freshservice for IT service management is a plus.

System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.