Demo

Senior MuleSoft Enterprise Integration Engineer

3Core Systems, Inc
Irvine, CA Contractor
POSTED ON 10/25/2026
AVAILABLE BEFORE 11/24/2026

3Core Systems, Inc is an SAP and Success Factors Partner with employees located across the United States. Our organization is dedicated to customer and employee satisfaction. We provide High Quality, Cost efficient and Competitive Solutions and Resources.

3Core Systems is looking for Senior MuleSoft Enterprise Integration Engineer for one of our clients in Irvine, CA (5 Days a Week Onsite)

"s and those authorized to work in the US are encouraged to apply. We are unable to sponsor visa at this time"

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.

Regards,
Recruiting Team
3Core Systems Inc
9101 Burnet Road, Suite 207, Austin, TX 78758

Salary : $60 - $70

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