API Integrations Engineer II — REST/SOAP

System One

Fayetteville (AR)

On-site

USD 65,000 - 95,000

Full time

2 days ago

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Benefits offered by this job

Health benefits

401(k) plan

Job summary

System One in Fayetteville, AR seeks an Integrations Engineer II (API) to design, develop, test, and support API-based integrations with customers and vendors using REST and SOAP. You will translate business and technical requirements into working solutions and build authentication and data-mapping logic for API connections.

Required is a Bachelor's degree in IT/CS or related field and 2–4+ years in API integrations, with OAuth 2.0 and API key management.

Qualifications

Bachelor's degree requirement or equivalent work experience.
2–4+ years building or supporting API integrations in logistics/supply chain environments.
Experience with REST and/or SOAP APIs, including OAuth 2.0 and API key management.
Familiarity with TMS/WMS/ERP integrations is a plus.
Strong analytical and problem-solving abilities; effective written and verbal communication.

Responsibilities

Design, develop, test, and support API-based integrations with customers and vendors (REST and SOAP).
Translate business and technical requirements into working integration solutions.
Build and maintain authentication, authorization, and data-mapping logic for API connections.
Monitor performance, identify, and resolve integration errors or data discrepancies.
Collaborate with TMS, WMS, ERP, and EDI teams to align with system architecture and data standards.
Develop and maintain technical documentation, including API specs and data-mapping guides.
Onboard customers and vendors to scope, test, and validate new integrations through go-live.
Troubleshoot issues across full stack, including payloads, auth, and downstream processing.
Support security and compliance for API access and third-party connections.
Participate in code reviews and continuous improvement of tools and processes.
Track work via Jira and support requests via Freshservice.