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Senior Java Developer โ Trading Systems
Cantor Fitzgerald
Source: Headcount Labs ยท original listing โ
Job data: Headcount Labs, ODbL 1.0. Job descriptions belong to their employers.
Source date: 10/27/2026
About this role
Job Description Senior Java Developer โ Trading Systems Company: Cantor Fitzgerald Team: Trading Systems Development Location: Poland (Warsaw) Employment type: Full-time, permanent Design, develop, and maintain server-side Java applications for trading platforms. Implement robust, scalable solutions using Spring Framework and Spring Boot. Collaborate with business analysts, tech leads, traders, and other developers to deliver mission-critical features. Optimize application performance for high throughput and low latency in a real-time trading environment. Ensure code quality through unit tests and end-to-end test automation. Participate in DevOps pipeline development and deployment automation using Git/GitLab, Maven, and Jenkins CI/CD pipelines. Troubleshoot production issues and provide timely resolutions. Strong proficiency in Java (8+) with a focus on server-side development. Expertise in Spring, Spring Boot, and Maven for enterprise application development. Experience with at least one web application development framework (e.g., Angular, React, or similar). Solid understanding of multithreading, concurrency, and application performance tuning. Experience with DevOps practices and CI/CD pipelines. Familiarity with message queue systems (e.g., Kafka, JMS) and RESTful services. Knowledge of SQL and relational databases (Oracle, PostgreSQL). Preferred Qualifications Monitoring and observability tools: Splunk, ELK stack, Grafana/Prometheus. Job Info Job Identification 248951 Posting Date 10/27/2026 Job Schedule Full time Locations Ul. Prosta 20, Warsaw, 00-850, PL (Hybrid)