IOS Developer

Job description

Key Responsibilities

Design & Development Microservices Development: Design, develop, test, deploy, and maintain high-throughput, low-latency microservices using Java (17/21) , Spring Boot , and cloud-native frameworks.

API Architecture

Build and document robust RESTful APIs and event-driven interfaces adhering to enterprise API standards, OpenAPI/Swagger specifications, Event-Driven & Messaging Systems: Design asynchronous workflows and event streaming pipelines using Apache Kafka or JMS .

Database & Data Management

Implement efficient data persistence layers using relational databases ( Oracle) and NoSQL stores (MongoDB), ensuring optimized indexing, query execution, and transactional integrity. Engineering Excellence & DevOps Code Quality & Best Practices: Enforce clean code principles, SOLID design patterns, domain-driven design (DDD), and test-driven development (TDD/BDD).

Automated Testing

Author comprehensive unit, integration, and contract tests utilizing JUnit 5, Mockito maintaining high automated test coverage (>85%).

CI/CD & Cloud Integration

Build and optimize CI/CD pipelines and containerize services using Docker and Kubernetes / OpenShift .

Observability & Reliability

Integrate logging, metrics, and tracing instrumentation into microservices using frameworks such as OpenTelemetry, Micrometer, Prometheus, Grafana, and Splunk/ELK.

Collaboration & Leadership Agile Participation

Actively participate in Scrum/Kanban ceremonies (sprint planning, daily standups, backlog refinement, retrospectives).

Production Support & Incident Management

Partner with Level 3 (L3) support teams for triage, root-cause analysis (RCA), and remediation of critical production incidents during release rollouts and business hours. 4-8 years in an Apps Development role. Demonstrated execution capabilities. Strong analytical and quantitative skills; Data driven and results-oriented Experience in running high traffic, distributed, cloud based services

Experience in affecting large culture change Experience leading infrastructure programs Skilled at working with third party service providers Excellent written and oral communication skills Education: Bachelor’s/University degree or equivalent experience ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Digital Software Engineering ------------------------------------------------------ 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.

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