Lead Java Engineer for Real-Time Financial Analytics

Citi; Województwo mazowieckie; Hybrid; PLN 268,000 - 457,000; Full time

Benefits offered by this job

Private Medical Care

Life Insurance

Pension Plan (DC)

Parental Leave

Sport Card

Employee Assistance Program

Job summary

Citi Solutions Center Poland is seeking an experienced Lead Java Engineer to shape the delivery of a risk analytics platform. You will architect, build, and own scalable Java services within a Spring ecosystem while mentoring engineers and leading architectural decisions.

You will optimize for performance, implement real-time data pipelines with Kafka and Pinot, and drive DevOps automation on OpenShift. A strong background in SQL Server, distributed systems, and modern CI/CD tools is required.

Qualifications

• 8+ years of professional experience designing, building, and deploying enterprise-scale backend systems.
• Deep knowledge of modern Java (21+) and the Spring ecosystem (Spring Boot, Spring Security).
• Strong command of SQL and Microsoft SQL Server; writing optimized queries and schemas.
• Experience with Kafka, RabbitMQ, or similar messaging systems.
• Track record leading technical initiatives and mentoring engineers.
• CI/CD principles and tools (Jenkins, Tekton); containerization with Docker/Kubernetes/OpenShift.

Responsibilities

• Architect, build, and own end-to-end software solutions using Java and Spring.
• Lead and mentor sub-teams; conduct code reviews and knowledge sharing.
• Drive performance for high-throughput, low-latency systems; optimize data models and caching.
• Develop real-time data pipelines using Kafka and Pinot for instant analytics.
• Contribute to DevOps and automation; manage deployments on OpenShift; CI/CD pipeline improvements.
• Collaborate with PMs and stakeholders to translate requirements into architecture.
• Own the full application lifecycle and production support, including risk analytics insights.

Skills

Java

Spring framework

Leadership

Distributed systems

Education

MS or PhD in CS/Engineering/Math

Tools

SQL Server

Kafka

Redis

OpenShift

Docker

Kubernetes

Git

Jenkins/Tekton

Apache Pinot

Job description

Citi Solutions Center Poland is seeking an experienced Lead Java Engineer to shape the delivery of a risk analytics platform. You will architect, build, and own scalable Java services within a Spring ecosystem while mentoring engineers and leading architectural decisions.

You will optimize for performance, implement real-time data pipelines with Kafka and Pinot, and drive DevOps automation on OpenShift. A strong background in SQL Server, distributed systems, and modern CI/CD tools is required.