We are seeking a highly experienced and technically accomplished **Application Dev Lead** to join our team, responsible for architecting, developing, and leading our core banking integration strategies and modern microservices ecosystem. The ideal candidate will be a subject matter expert in integration technologies, possess deep, hands-on expertise in **Java Microservices and enterprise Database engineering (Oracle/SQL)** , have extensive knowledge of the financial services domain, and demonstrate a proven track record of leading technical teams to deliver robust, scalable, and secure solutions. This role requires a unique blend of hands-on technical excellence, architectural vision, database performance optimization, and solid people management skills to drive the modernization and stability of our mission-critical banking systems. **Key Responsibilities:** **Leadership & People Management** + **Team Leadership & Mentorship:** Lead, manage, and mentor a high-performing team of developers, backend engineers, and integration specialists, fostering technical capability, career growth, and engineering excellence across Java microservices and middleware platforms. + **Project & Delivery Ownership:** Take full ownership of technical delivery across complex integration initiatives, including architectural scoping, task breakdown (WBS), accurate sprint estimation, resource planning, and milestone prioritization. + **Quality Assurance & Engineering Governance:** Enforce best-in-class engineering practices by conducting rigorous code reviews, pull request audits, and comprehensive architectural design reviews (TDRs). + **Stakeholder Collaboration:** Collaborate seamlessly across business lines, enterprise architecture, database administrators, infrastructure, Information Security, and third-party vendor teams to align technical delivery with strategic business goals. + **SME & Agile Delivery:** Act as the primary Subject Matter Expert (SME) for complex escalations, production incident triage (Sev-1/MIM), and root-cause analysis, while driving Agile/Scrum ceremonies to ensure predictable, high-quality, and timely delivery. **Technical & Domain Responsibilities** + **Java Microservices Architecture:** Architect, build, and deploy production-grade, containerized Java microservices using Spring Boot, Spring Cloud, and RESTful/gRPC APIs, implementing distributed resilience patterns (Saga orchestrations, Circuit Breakers, Bulkheads, Outbox pattern). + **Database Engineering & Query Performance:** Design robust database models and persistence layers (Spring Data JPA, Hibernate, JDBC), execute query tuning, analyze execution plans (EXPLAIN PLAN), optimize indexing strategies (B-Tree, Bitmap, composite), and resolve connection pool (HikariCP) and row-level locking contentions in enterprise Oracle/SQL environments. + **High-Availability Integration Design:** Design and implement resilient, distributed integration solutions prioritizing active-active high availability (HA), fault tolerance, multi-region disaster recovery (DR), recoverability, and minimal business disruption. + **Legacy-to-Cloud Modernization:** Lead the architectural evolution and phased decomposition of legacy centralized middleware (TIBCO BusinessWorks, IBM MQ) into distributed, event-driven architectures utilizing Apache Kafka and cloud-native Java microservices.



+ **Banking Domain Systems Integration:** Apply deep expertise in banking and financial services to integration architecture, specifically in real-time fraud detection, payment processing rails (ISO 20022, SWIFT, Fedwire, ACH), clearing and settlement, and core enterprise banking ledgers. + **Security, Audit & Regulatory Compliance:** Ensure all integration services strictly comply with enterprise security baselines, audit controls, regulatory mandates (OCC, Fed, PRA, MAS), data protection rules (PII, PCI-DSS), Mutual TLS (mTLS) certificate management, and operational resilience standards. + **High-Volume Real-Time Messaging:** Oversee the architecture, throughput tuning, and management of real-time transaction flows, high-volume messaging pipelines, dead-letter queue (DLQ) automation, and sub-second SLA routing. **Recommended Qualifications** **Core Technical Skills** + **Java & Microservices:** + Advanced proficiency in Core Java (Java 11/17/21), Multithreading, Concurrency, and JVM tuning (Memory management, Garbage Collection - G1GC/ZGC). + Hands-on mastery of Spring Framework (Spring Boot, Spring Cloud, Spring Data, Spring Security, Spring Batch). + Deep experience with Microservices patterns (Saga Orchestration/Choreography, CQRS, Circuit Breaker via Resilience4j, API Gateway routing). + Containerization and orchestration experience using Docker, Kubernetes, and OpenShift. + **Database & Data Persistence:** + Advanced expertise in Relational Databases: Oracle (19c+), SQL, PL/SQL, stored procedures, functions, packages, and triggers. + Deep knowledge of Query Performance Tuning, Execution Plan analysis (EXPLAIN PLAN), index design, partitioning, and stats gathering. + Mastery of connection pool management (HikariCP), lock contention mitigation, deadlock resolution, and transaction isolation levels ( **READ COMMITTED** , **SERIALIZABLE** ). + Solid understanding of ORM frameworks (Hibernate, JPA) and mitigation of ORM antipatterns ( **N+1** queries, dirty checks). + **Enterprise Middleware & Messaging:** + Subject Matter Expertise in TIBCO technologies: TIBCO BusinessWorks (BW 5.x / 6.x), TIBCO Enterprise Message Service (EMS), TIBCO Administrator/TEA. + In-depth experience with enterprise queuing and streaming: IBM MQ and Apache Kafka (Topic design, Partitioning, Consumer Groups, Schema Registry). + **APIs & Protocols:** + Contract-first API development: RESTful Web Services, OpenAPI/Swagger, SOAP Web Services, gRPC. + Data formatting & transformation: JSON, XML, XSD, WSDL, XPath, XSLT, and Canonical Data Modeling. + **Security & Cryptography:** + Solid foundation in transport and application security: SSL/TLS 1.3, Mutual TLS (mTLS), Public Key Infrastructure (PKI), Keystores/Truststores, OAuth2, OIDC, SAML, and API Key/Token management. + **DevOps, CI/CD & Observability:** + Build & CI/CD toolchains: Git, Maven, Gradle, Harness, TeamCity, Jenkins, uDeploy. + Comprehensive monitoring & logging: Splunk, AppDynamics, Dynatrace, Prometheus, Grafana, Micrometer, and distributed tracing (OpenTelemetry/Zipkin).



**Good to Have Skills** + **Automated Testing & Quality Engineering:** + Experience with Test-Driven Development (TDD) and Behavior-Driven Development (BDD). + Familiarity with unit and integration testing frameworks such as JUnit 5, Mockito, Testcontainers, and Spring Boot Test. + Experience with API contract testing tools (Pact, Spring Cloud Contract) and performance/load testing tools (JMeter, Gatling). + Knowledge of automated code quality gates and static analysis tools (SonarQube, Checkstyle). **Banking Domain Expertise** + Deep expertise in banking and financial services integration architecture and enterprise application patterns. + Proven experience with real-time fraud detection pipelines, payment processing rails (ISO 20022, SWIFT MT/MX, Fedwire, NACHA/ACH, RTP), core ledger accounting, and trade/transaction processing systems. + In-depth knowledge of real-time transactional flows, straight-through processing (STP), guaranteed exactly-once delivery, idempotency key patterns, and high-volume messaging resilience. + Hands-on familiarity with global banking regulations, audit readiness, operational resilience standards, and data protection frameworks (GLBA, GDPR, PCI-DSS). **Leadership & Management** + Demonstrated experience leading, mentoring, and managing technical teams of developers, backend engineers, and integration architects. + Proven ability to manage full end-to-end technical delivery, including architectural roadmapping, scope definition, backlog grooming, estimation, and task prioritization. + Track record of establishing engineering best practices, leading code reviews, reducing technical debt, and elevating team capabilities in modern technologies. + Exceptional stakeholder management, technical communication, and presentation skills across technical teams and executive business sponsors. + Strong proficiency in driving agile project delivery using Scrum/Kanban methodologies, sprint planning, and release governance. ------------------------------------------------------ **Job Family Group:** Technology ------------------------------------------------------ **Job Family:** Applications Development ------------------------------------------------------ **Time Type:** Full time ------------------------------------------------------ **Most Relevant Skills** Please see the requirements listed above. ------------------------------------------------------ **Other Relevant Skills** For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ _Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law._ _If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review_ _Accessibility at Citi (https://www.citigroup.com/citi/accessibility/application-accessibility.htm)_ _._ _View Citi's_ _EEO Policy Statement (https://www.citigroup.com/global/eeo-aa-policy)_ _and the_ _Know Your Rights (https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12ScreenRdr.pdf)_ _poster._ Citi is an equal opportunity and affirmative action employer. Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.

📌 Lead Developer - Java and Microservices (Chennai)
🏢 Citigroup
📍 Chennai