ESB Developer

We have an Immediate Job opportunity for ESB Developer position.

Notice Period: Immediate to 30 days

At Synechron, we believe in the power of digital to transform businesses for the better.

Our global consulting firm combines creativity and innovative technology to deliver industry-leading digital solutions.

Synechron’s progressive technologies and optimization strategies span end-to-end Artificial Intelligence, Consulting, Digital, Cloud & DevOps, Data, and Software Engineering, servicing an array of noteworthy financial services and technology firms.

Through research and development initiatives in our FinLabs we develop solutions for modernization, from Artificial Intelligence and Blockchain to Data Science models, Digital Underwriting, mobile-first applications and more.

Over the last 20+ years, our company has been honored with multiple employer awards, recognizing our commitment to our talented teams.

With top clients to boast about, Synechron has a global workforce of 15,000+, and has 58 offices in 21 countries within key global markets.

For more information on the company, please visit our website or LinkedIn community

Diversity & Inclusion are fundamental to our culture, and Synechron is proud to be an equal opportunity workplace and an affirmative-action employer.

Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all.

We strongly believe that a diverse workforce helps build stronger, successful businesses as a global company.

We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply.

We empower our global workforce by offering flexible workplace arrangements, mentoring, internal mobility, learning and development programs, and more.

All employment decisions at Synechron are based on business needs, job requirements, and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected., and Inclusion:

Design and implement ESB services exposing CASA variable outputs from RDBMS via secure SOAP APIs.

Implement authentication and authorisation: OAuth2/JWT token validation, mTLS mutual authentication, request validation, throttling/quota enforcement, caching, and standardised error handling.

Design and enforce API versioning strategy (semantic versioning), backward compatibility policy, and deprecation framework.

Build non-prod sandboxes and developer portal artifacts: API specification, usage examples, Postman collection, and client stub code for FinnOne LOS integration team.

Collaborate with the FinnOne LOS team and FinnOne Vendor to configure scorecard module consumption of CASA variables: define request frequency patterns, idempotency keys, and error-retry logic at the consumer side.

Define integration design (sequence diagrams, message timing, fallback scenarios, circuit-breaker patterns) and produce the FinnOne LOS Consumption Guide and configuration checklist.

Execute non-functional testing (load, stress, endurance) of ESB services and produce tuning reports with bottleneck analysis and recommendations.

Integrate ESB services into CI/CD pipeline (build, security scan, deploy, rollback) with CAB approval gates for production.

Ensure all ESB services comply with security standards (IAM, PII masking, encryption at rest and in transit)

Produce operational monitoring dashboards (latency, error rates, throttle hits, availability) and runbooks for ESB layer; support KT and handover.

7+ years 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 OAuth2/JWT, mTLS, API gateway policies (throttling, caching, request validation), and security header standards; familiarity with IAM in enterprise banking environments.

Deep knowledge of enterprise integration patterns: request/reply, idempotency, correlation IDs, circuit breakers, retry/backoff, and dead-letter handling.

Strong experience with OpenAPI 3.0 / Swagger specification, Postman collections, developer portal documentation, and client stub generation.

designing and executing load and stress tests for API services; ability to analyse bottlenecks and produce tuning recommendations.

Prior experience integrating with FinnOne LOS or similar loan origination platforms is highly desirable; understanding of scorecard module consumption patterns.

Bachelor’s or Master’s degree in computer science, Information Systems, or related field

Excellent communication and leadership skills.

Strong interpersonal and collaboration skills.

Ability to work under pressure and meet tight deadlines.

Positive attitude and strong work ethic.