Senior Java Developer - Hybrid

Company Overview

Cantor Fitzgerald is a leading global financial services firm specializing in investment banking, capital markets, institutional equity and fixed income sales and trading, commercial real estate, and prime brokerage. With a legacy of over 75 years of financial innovation and integrity, Cantor operates across major financial centres worldwide, delivering excellence and trusted expertise to its clients.

This role is part of a rapidly growing technology hub in Warsaw, which will be instrumental in supporting the company’s global technology expansion and driving innovation across its international operations.

Cantor Fitzgerald is seeking a highly skilled C++ 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 RES

Tful 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.

Desirable Skills:

• Monitoring and observability tools: Splunk, ELK stack, Grafana/Prometheus.

Personal Attributes

• Proactive and solution-oriented
• Comfortable working in a dynamic, business-facing environment
• Strong team player with a practical mindset
• Open to learning new technologies and approaches

Work Arrangement

• This is a hybrid role based in Warsaw, with three days per week in the office.
• The role is offered primarily as a permanent contract (Umowa o Pracę – UoP).
• Salary range: 20,000 PLN – 40,000 PLN (depending on experience and contract type).

Why Join Us?

• Work closely with front-office teams on business-critical systems
• Opportunity to build on strong Excel expertise while learning modern technologies
• Exposure to real-time pricing systems and global markets
• Join a collaborative, experienced team within a global organisation