Lead Java Developer

Overview

As Lead Java Developer at Citi, you will shape real-time and on-demand risk platforms for the Credit business, driving end-to-end delivery from architecture to production support. You will collaborate with trading, risk, and tech teams across regions to scale and optimize risk calculations and workflows. This role combines hands-on technical leadership with platform modernization, including cloud migration and observability improvements. You’ll work in a high-impact, collaborative environment that values mentorship and rapid delivery.

Pay / Benefits

• Hybrid working model (up to 2 days home)
• 27 days annual leave plus bank holidays
• Discretionary annual bonus
• Private medical care & life insurance
• Employee Assistance Program
• Pension Plan

Responsibilities

• Lead delivery of Real-Time and On-Demand Risk enhancements for the Credit business with cross-team collaboration
• Own full development lifecycle: architecture, design, implementation, testing strategies, release, and production support
• Align RT/OD workflows with End-of-Day Risk strategy ensuring parity and controlled cutover
• Lead adoption and expansion of RT/OD capabilities on the strategic risk platform
• Deliver performance improvements through optimized risk calculation strategies
• Guide migration of compute workloads to AWS ensuring scalability, throughput and cost efficiency
• Collaborate with NAM and APAC teams to improve delivery velocity and incident triage
• Provide user-facing updates, demos, documentation, and education for adoption and rollout
• Lead root cause analysis on production issues and improve platform stability and observability

Key requirements

• Core Java, J2EE, Spring Framework experience
• Python scripting and data analysis exposure
• Capital Markets Front Office tech experience with Fixed Income
• Knowledge of Front Office Risk calculations for Credit
• Experience with Microservices, APIs, Docker, Kubernetes, OpenShift
• Messaging technologies: Kafka, JMS, gRPC
• Latency measurement and JVM tuning proficiency
• Observability stacks: ELK, Prometheus, Grafana, Kiali, Jaeger
• Persistence tech: relational and NoSQL databases, distributed caches
• Linux/Unix proficiency
• Experience with Senior Quants and Technology Managers
• Effective verbal and written communication
• Bachelor’s degree; Master’s degree preferred

• Strong written and verbal communication
• Cross-team collaboration
• Mentorship and leadership
• Core Java, J2EE, Spring
• Python scripting
• Kafka, JMS, gRPC

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