Sr. Manager / Manager : IT ESB Lead

The ESB Lead will own the design, development, security and day-to-day administration of the organization's Enterprise Service Bus (ESB) layer the central integration backbone connecting all internal applications and channels with external partner and vendor systems. The role requires strong hands-on expertise across integration architecture, database management, networking and authentication/security.

• Own end-to-end architecture, design, build and administration of the ESB platform integrating all internal applications and external partner/vendor channels.
• Design integration solutions using SOA/microservices principles message queuing, pub-sub, request-reply, orchestration.
• Manage and optimize the database layer supporting the ESB schema design, stored procedures, indexing, query tuning, replication, high availability, and backup/DR.
• Define and enforce API management standards across integrations — versioning, throttling/rate limiting, idempotency, retry and circuit-breaker patterns, structured error handling.
• Architect and implement secure authentication and authorization for internal and external integrations — OAuth 2.0, JWT, mTLS, SAML, API keys, and end-to-end PKI/certificate lifecycle management.
• Own network-level connectivity and security for ESB integrations — firewall rule requests, VPN /MPLS setup with external vendors, DMZ architecture, load balancers/reverse proxies, and IP whitelisting.
• Lead technical onboarding of new external vendor/partner integrations — discovery, interface specification, sequence/DFD design, UAT coordination and go-live.
• Partner with InfoSec on VAPT, secure code reviews and regulatory compliance for the ESB layer, and drive closure of audit findings.
• Lead root-cause analysis and permanent fixes for production integration issues; own ESB uptime, performance and capacity planning.
• Mentor and lead a team of integration developers; manage OEM/vendor SLAs for ESB platform support.
• Maintain integration documentation — architecture diagrams, DFDs, sequence diagrams and the API/interface inventory — and act as the technical point of contact for the ESB across engineering, InfoSec, and business/vendor stakeholders.

Applicants should possess the following attributes:

• Strong hands-on experience with ESB/middleware platforms and integration development for connecting internal applications with external partner/vendor systems.
• Proficient in relational database management (e.g., MSSQL Server) —stored procedures/triggers, query optimization, indexing, replication, high availability, and backup/DR.
• Solid understanding of core networking concepts — TCP/IP, DNS, HTTP/HTTPS, load balancing, firewalls, VPN, DMZ architecture and network segmentation.
• Working knowledge of authentication and security protocols — OAuth 2.0, JWT, SAML, mutual TLS (mTLS), PKI/certificate management, and API key/secret management.
• Experience with API design and management — REST/SOAP, XML/JSON, WSDL, Swagger/OpenAPI, and API gateway concepts.
• Working knowledge of message queuing/event technologies (e.g., MQ, Kafka, or equivalent).
• Exposure to credit card/BFSI systems integration and payment/card network connectivity is highly desirable.
• Awareness of regulatory and compliance frameworks relevant to digital lending/payments (e.g., PCI-DSS, applicable data protection regulations).
• Exposure to cloud/on-prem hybrid environments and containerization (Docker/Kubernetes) will be an added advantage.
• Strong analytical and troubleshooting ability with the capacity to lead a team and manage multiple internal and external stakeholders.