We have an immediate vacancy for an ESB Developer with over 6 years of experience at the company in Abu Dhabi. The role focuses on designing and implementing a middleware service layer that exposes CASA scorecard variables from a centralized RDBMS to the FinnOne Loan Origination System.
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Work Conditions: On-site contract (4–5 months, third party)
Job Description:
The ESB / Integration Developer will:
- Design and implement ESB services exposing CASA variable outputs from RDBMS via secure SOAP APIs.
- Implement authentication and authorization mechanisms including OAuth2/JWT token validation, mTLS mutual authentication, request validation, throttling, caching, and standardized error handling.
- Create an API versioning strategy, enforce backward compatibility policies, and develop deprecation frameworks.
- Build non-production sandboxes and develop portal artifacts, including API specifications, usage examples, and Postman collections.
- Collaborate with the FinnOne LOS team to define request patterns, idempotency keys, and error-retry logic.
- Define integration design parameters and produce the FinnOne LOS Consumption Guide and checklist.
- Execute non-functional testing of ESB services and provide tuning reports.
- Integrate ESB services into the CI/CD pipeline with security compliance and approval gates for production.
- Ensure all ESB services comply with security standards (IAM, PII masking, encryption).
- Produce operational monitoring dashboards and support handover processes.
Required Experience & Skills:
- 4+ years of hands-on experience with enterprise service bus platforms (IBM MQ, MuleSoft, TIBCO, WSO2, or equivalent).
- Strong understanding of SOAP, WSDL, and REST/JSON service design.
- Proven implementation of API security standards, including OAuth2/JWT, mTLS, and API gateway policies.
- Familiarity with IAM in enterprise banking environments.
- Deep knowledge of enterprise integration patterns and experience designing and executing load and stress tests for API services.
- Prior experience integrating with FinnOne LOS or similar loan origination platforms is highly desirable.
Language Requirements:
Fluency in English is required.
