> Markdown version of [/jobs/ext/3115599-integrations-engineer-ii-api](https://www.wearedevelopers.com/jobs/ext/3115599-integrations-engineer-ii-api). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Integrations Engineer II (API) - **Company:** System One - **Location:** Fayetteville, AR, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Microsoft Word, Microsoft Excel, Application Programming Interfaces (APIs), JIRA, User Authentication, Microsoft Outlook, Code Review, Data Governance, Data Mapping, Issue Tracking Systems, Key Management, Microsoft Office, Netsuite, OAuth, Data Streaming, Systems Architecture, Systems Integration, Openapi, Data Processing, SOAPAPI, Information Technology, Api Design, Api Management - **Published:** September 27, 2026 - **Apply:** https://dejobs.org/x/x/042084BBA3F54220A76F1B281A9E0CA7/job/ ## About the Role * 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. ## Description * 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. ## Related Videos - [Why make use of an integration platform in today's software developments and infrastructure?](https://www.wearedevelopers.com/videos/758-why-make-use-of-an-integration-platform-in-today-s-software-developments-and-infrastructure) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - 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