Senior Enterprise Integration Engineer

Role: Senior Mulesoft Enterprise Integration Engineer Location: Irvine, CA (5 Days a Week Onsite) Duration: 6 Months Contract (Can be Extended) About the Opportunity Our client, a well-established enterprise organization, is adding a Senior Enterprise Integration Engineer to its technology team. This is a hands-on build role for an engineer who is strongest with MuleSoft and modern API development. You will own integrations end to end: designing new connections between systems, improving the ones already in place, and resolving issues when data stops flowing. The work spans many applications and partner teams across a broad technology landscape. Key Responsibilities Build, test, release, and support integration solutions on the MuleSoft platform. Create and maintain APIs and web services that let applications share data reliably. Turn business and technical needs into integration designs that scale. Diagnose and resolve integration problems across development, QA, and production. Contribute to automated build, deployment, and release pipelines. Partner with development, architecture, infrastructure, and other IT groups. Strengthen the security, performance, stability, and maintainability of existing integrations. Review peers' code and help shape engineering standards and best practices. Keep clear documentation for integrations, APIs, and related processes. Qualifications Proven, hands-on background building and supporting enterprise integrations. Direct experience with MuleSoft Anypoint Platform, CloudHub, or both. Solid command of REST and SOAP APIs, web services, and common integration patterns. Comfort working with JSON, XML, and related data and API standards. Working knowledge of microservices and current application architecture approaches. Exposure to messaging, asynchronous processing, or event-driven designs. Coding skills in Java, Python, JavaScript, or a comparable language. Practical use of Git, CI/CD pipelines, and automated deployments. Sharp troubleshooting and analytical problem-solving ability. Background in large, multi-system enterprise IT environments. Clear communicator who works well with both technical and business stakeholders.