Lead Java Developer — Real-Time Risk & Cloud (Hybrid)

Citibank (Switzerland) AG; Greater London; Hybrid; Confidential; Full time

Benefits offered by this job

27 days annual leave

Discretional annual bonus

Private medical care

Pension plan

Employee assistance program

Job summary

Citi is seeking a Lead Java Developer in London to architect and implement real-time and on-demand risk systems. You will own the full lifecycle from design to production support, integrating new analytics and data sets across global teams.

The role emphasizes scalable microservices, streaming data, and observability with ELK, Prometheus and Grafana. Hybrid work model and competitive benefits are offered.

Qualifications

• Bachelor’s degree in a related field or equivalent experience.
• Strong experience in Core Java and J2EE/Spring.
• Experience in Capital Markets Front Office technology.
• Strong communication and problem-solving skills.

Responsibilities

• Lead delivery of Real‑Time and On‑Demand Risk enhancements with London‑based traders and tech teams.
• Own the full development lifecycle: architecture, design, implementation, automated testing strategies, release execution, and production support.
• Drive alignment of RT/OD workflows with EOD Risk strategy, ensuring parity and controlled cutover.
• Lead adoption and build‑out of RT/OD capabilities on risk platforms, including integration of new analytics and datasets.
• Deliver performance improvements through optimized risk calculations and scalable architectures.
• Guide migration of compute workloads to AWS with scalability, throughput, and cost efficiency.
• Collaborate with NAM and APAC teams in follow-the-sun model to improve velocity and reliability.
• Provide user updates, demos, documentation, and education to promote adoption.

Skills

Core Java

J2EE

Spring Framework

Python scripting

Microservices

Docker

Kubernetes

OpenShift

Kafka

JMS

gRPC

ELK

Grafana

Prometheus

Databases

Education

Bachelor’s degree or higher

Tools

Docker

Kubernetes

OpenShift

Kafka

JMS

gRPC

ELK

Grafana

Prometheus

Job description

Citi is seeking a Lead Java Developer in London to architect and implement real-time and on-demand risk systems. You will own the full lifecycle from design to production support, integrating new analytics and data sets across global teams.

The role emphasizes scalable microservices, streaming data, and observability with ELK, Prometheus and Grafana. Hybrid work model and competitive benefits are offered.