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Cantor Fitzgerald Ireland Ltd

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Senior Java Developer

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Summary

Senior Java Developer on Cantor Fitzgerald's Trading Systems team in Poland, building server-side modules for a high-frequency trading platform and matching engine. Core stack: Java 8+, Spring/Spring Boot, Maven, Kafka/JMS, Oracle/PostgreSQL, and GitLab/Jenkins CI/CD with a focus on low-latency, high-throughput performance.

Cantor Fitzgerald is seeking a highly skilled Senior Java Developer to join the Trading Systems development team. The role involves developing modules of a high-frequency trading platform and matching engine.

Key Responsibilities:

  • 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.

Core Competencies & Skills:

  • 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).

Qualifications:

  • Bachelor’s degree in Computer Science, Engineering, or a related field.
  • 5+ years of professional experience in Java development.
  • Prior experience in electronic trading systems, brokerage platforms, or financial services technology is a strong plus.
  • Monitoring and observability tools: Splunk, ELK stack, Grafana/Prometheus.

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