Senior Java Developer

Cantor Fitzgerald; Warszawa; On-site; PLN 300,000 - 420,000; Full time

Job summary

Cantor Fitzgerald is seeking a highly skilled Java Developer to join the Trading Systems development team in Warsaw. You will design, develop, and maintain server-side Java applications for a high-frequency trading platform and matching engine.

The role requires strong expertise in Java 8+, Spring, Spring Boot, Maven, and experience with web frameworks, multithreading, and DevOps practices. You will work with analysts, traders, and other developers to deliver mission-critical features and

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or 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.

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.

Skills

Java

Spring

Spring Boot

Maven

Web frameworks

Multithreading

Concurrency

DevOps

RESTful services

SQL

Oracle

PostgreSQL

Kafka

JMS

Angular/React

Education

Bachelor’s degree in Computer Science, Engineering, or related field

Job description

Cantor Fitzgerald is seeking a highly skilled JAVA Developer to join the Trading Systems development team. The role involves developing modules of 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, 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 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.