IOS Developer

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. 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. View Citi’s EEO Policy Statement and the Know Your Rights poster.