Lead Java Engineer: Real-Time Finance Risk & BI

Citigroup Inc.; Warszawa; Hybrid; PLN 268,000 - 457,000; Full time

Job summary

Citigroup Inc. in Warsaw is seeking a Lead Java Software Engineer for Prime Finance Risk & Business Intelligence. You will architect and deliver high‑throughput Java services, mentor engineers, and drive technical direction in a hybrid work model.

You will work with Kafka, Pinot, SQL Server, Redis, OpenShift, and a modern Java/Spring stack to power real‑time risk analytics and data pipelines for business users worldwide.

Qualifications

• 8+ years of backend design, development, and deployment in enterprise systems.
• Expertise in Java (21+), Spring, and distributed data processing.
• Experience with SQL Server and real-time analytics stacks.
• Strong leadership, mentoring, and collaboration skills.

Responsibilities

• Architect, build, and own end-to-end Java services and APIs.
• Lead sub-teams, review code, and mentor engineers.
• Optimize high-throughput, low-latency systems and data models.
• Partner with data sources, DevOps, and stakeholders to deliver solutions.

Skills

Java

Spring

Distributed systems

Real-time analytics

SQL

Kafka

Redis

OpenShift

CI/CD

Mentorship

Leadership

Education

Advanced degree in CS/Engineering/Math or related field

Tools

Kafka

RabbitMQ

OpenShift

Docker

Kubernetes

Git

Jenkins

Tekton

Job description

Citigroup Inc. in Warsaw is seeking a Lead Java Software Engineer for Prime Finance Risk & Business Intelligence. You will architect and deliver high‑throughput Java services, mentor engineers, and drive technical direction in a hybrid work model.

You will work with Kafka, Pinot, SQL Server, Redis, OpenShift, and a modern Java/Spring stack to power real‑time risk analytics and data pipelines for business users worldwide.