Lead Java Developer

Citi; New York (NY); Hybrid; USD 120,000 - 150,000; Full time

Benefits offered by this job

Annual leave: 27 days

Discretional annual performance related bonus

Private Medical Care & Life Insurance

Employee Assistance Program

Pension Plan

Paid Parental Leave

Job summary

Citi is seeking a Lead Java Developer to establish and implement application systems. This senior role involves leading application systems analysis and programming activities, focusing on optimizing performance and enhancing user capabilities.

The candidate should have significant experience in Core Java, J2EE, and working within fast-moving Capital Markets. The position is hybrid and offers numerous benefits, including generous annual leave and private medical care.

Qualifications

• Strong experience in Core Java, J2EE, Spring Framework.
• Exposure to Python scripting and data analysis.
• Experience in fast moving Capital Markets Front Office technology environment.
• Working knowledge of Front Office Risk calculations.

Responsibilities

• Lead delivery of Real‑Time and On‑Demand Risk enhancements.
• Own the full development lifecycle.
• Drive alignment of workflows with Risk strategy.
• Collaborate actively with NAM and APAC teams.

Skills

Core Java

J2EE

Spring Framework

Python scripting

Fixed Income products

Microservices

APIs

Container technologies (Docker, Kubernetes, etc.)

Kafka

Performance optimization of Java

Education

Bachelor’s degree/University degree

Master’s degree preferred

Tools

Relational databases

NoSQL databases

Linux/Unix

Observability tools (ELK, Prometheus, etc.)

Job description

Lead Java Developer

Job Req Id: 26949717

Location(s): London, England, United Kingdom

Job Type: Hybrid

Posted: Mar. 30, 2026

Job Overview

Engine the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real‑world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.

Lead Java Developer

The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities.

Responsibilities

• Lead delivery of Real‑Time and On‑Demand Risk enhancements for the Credit Business by partnering directly with London‑based trading, MQA, Market Risk, and technology teams.
• Own the full development lifecycle: architecture, design, implementation, automated testing strategies, release execution, and ongoing production support.
• Drive alignment of RT/OD workflows with EOD Risk strategy, ensuring functional parity, reconciliation, and controlled cutover.
• Lead adoption and build‑out of RT/OD capabilities on strategic risk platform, including integration of new analytics, workflows, and risk datasets.
• Deliver significant performance improvements through optimized risk calculation strategies.
• Guide the migration of compute workloads to AWS, implementing best practices for scalability, throughput, resiliency, and cost efficiency.
• Collaborate actively with NAM and APAC teams in a follow‑the‑sun model to improve delivery velocity, reduce operational risk, and ensure rapid triage of production incidents.
• Provide user‑facing updates, demos, documentation, and education to promote adoption and ensure successful rollout of new capabilities.
• Lead root cause analysis on production issues, drive long‑term stability improvements, and strengthen monitoring and observability across the platform.

Recommended Experience

• Strong experience in Core Java, J2EE, Spring Framework
• Exposure to Python scripting and data analysis
• Experience in fast moving Capital Markets Front Office technology environment with experience in Fixed Income products
• Working knowledge of Front Office Risk calculations, especially for Credit products
• Experience in building highly scalable and distributed applications using Microservices, APIs, and Container technologies such as Docker, Kubernetes, OpenShift, etc.
• Strong expertise in messaging technologies such as Kafka, JMS, gRPC etc
• Proficient in latency measurement and performance optimization of Java based platforms with focus on JVM tuning
• Experience with observability stacks like ELK, Prometheus, Grafana, Kiali, Jaeger etc.
• Sound knowledge for persistence technologies such as relational databases, NoSQL databases, off heap storages and distributed caches
• Hands‑on knowledge of Linux / Unix
• Experience working with senior Quants and Technology Managers
• Good verbal and written communication

Education

• Bachelor’s degree/University degree or equivalent experience
• Master’s degree preferred

Benefits

• Annual leave: 27 days (plus bank holidays)
• Discretional annual performance related bonus
• Private Medical Care & Life Insurance
• Employee Assistance Program
• Pension Plan
• Paid Parental Leave
• Special discounts for employees, family, and friends
• Access to an array of learning and development resources

Legal Mandatory Statements

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.

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