Senior Integration Developer Jobs in California (NOW HIRING)

At CGS Business Solutions, we're dedicated to helping skilled IT and business professionals take the next meaningful step in their careers. Whether you're exploring project-based consulting roles or seeking a long-term position, we connect you with opportunities that align with your expertise, your goals, and your growth trajectory.

Backed by deep industry insight and our proven TalentFlow™ Framework, we ensure every role we present is thoughtfully matched to your skills, passions, and career ambitions. If you're ready for a role that challenges you and moves your career forward, we're currently partnering with leading organizations to fill the following opportunity:

CGS is hiring for a Senior Integration Developer with strong OIC and MuleSoft skills to be responsible for designing, developing, and implementing integration solutions that connect enterprise systems and applications. The Senior Integration Developer will lead the design and implementation of integration workflows, manage middleware platforms, and ensure seamless data flow across disparate systems.

Major Duties and Responsibilities

• Design, develop, and implement integration solutions using Oracle Integration Cloud (OIC), MuleSoft, and other iPaaS platforms across enterprise cloud and on-premise systems.
• Lead integration efforts specifically supporting Oracle Fusion ERP modules (Finance, SCM, HCM), ensuring reliable and scalable data exchange.
• Oversee the full API lifecycle, from designing and developing RESTful APIs to testing, monitoring, and optimizing for performance and scalability.
• Build and maintain integrations using Oracle Fusion web services (SOAP/REST), FBDI, OTBI, and event-driven frameworks.
• Create reusable API assets, connectors, and OIC integrations to accelerate development and standardize integration patterns.
• Work closely with third-party vendors and integration partners to integrate external applications into Oracle ERP and enterprise ecosystems.
• Monitor integration performance across OIC, MuleSoft, and other middleware platforms; troubleshoot and optimize system efficiency.
• Collaborate with business analysts, ERP functional teams, and architects to define technical requirements aligned with Oracle Fusion capabilities.
• Provide mentorship and guidance to IT peers on integration best practices, especially around ERP integrations and OIC design patterns.

Education and Experience

• 5+ years of experience in integration development with strong exposure to enterprise ERP systems and APIs.
• Hands-on experience with Oracle Fusion ERP integrations and Oracle Integration Cloud (OIC).
• Bachelor's degree in Computer Science, Information Technology, or related field.
• Proficiency in programming languages such as Java, C#, Python, or JavaScript.

Knowledge and Skills

• Extensive hands-on experience with MuleSoft Anypoint Platform (API design, development, deployment).
• Strong experience with Oracle Integration Cloud (OIC), including orchestration, adapters, and ERP integration patterns.
• Solid understanding of Oracle Fusion ERP architecture, including modules such as Finance, SCM, or HCM.
• Experience integrating with Oracle Fusion using:
• SOAP/REST APIs
• FBDI (File-Based Data Import)
• BI Publisher / OTBI extracts
• Event-driven integrations
• Experience with API-led connectivity and middleware architecture across hybrid environments.
• Strong proficiency in web services (REST, SOAP) and data formats like XML and JSON.
• Familiarity with API security best practices (OAuth, JWT, etc.) and enterprise security principles.
• Knowledge of event-driven architecture (Pub/Sub, Kafka, RabbitMQ).
• Experience with EDI standards (ANSI X12, EDIFACT) and protocols (AS2, SFTP, FTPS).
• Experience with version control tools (GitHub, Bitbucket).
• Strong data integration skills (mapping, transformation, database queries).
• Exposure to cloud platforms (AWS, Azure, Oracle Cloud Infrastructure).
• Strong analytical and troubleshooting skills in complex integration and ERP environments.
• Excellent communication and collaboration skills with business, ERP functional, and technical teams.
• Ability to manage multiple priorities in a fast-paced environment.
• Certifications in MuleSoft, Oracle Integration Cloud, or cloud platforms are a plus.

CGS Business Solutions is a nationally recognized leader in IT staffing and consulting, delivering top-tier talent across Applications, Cloud & Infrastructure, Cybersecurity, Data & AI, and Engineering. As a multi-year INC 5000 winner and one of California's Best IT Recruitment Firms, we're known for combining boutique-level service with enterprise-grade results.

We're also proud to be named one of the Orange County Business Journal's Fastest Growing Companies, earning the distinction for five consecutive years as we continue to expand into new markets across the U.S. Companies trust CGS to attract, engage, and retain elite technology talent—giving them the advantage they need to lead with confidence in a rapidly evolving digital landscape