Senior Java Developer Hybrid

Cantor Fitzgerald WARSAW 2026-08-17

Skills & Experience Required

  • Strong experience working with Excel, ideally in the context of pricing or analytics 
  • Background in pricing models or quantitative analytics (any asset class) 
  • Exposure to real-time or event-driven environments 
  • Ability to work with business users and translate requirements into solutions 
  • Solid analytical and problem-solving skills 
  • Good communication skills and collaborative mindset 

Desirable Skills & Experience

  • Some exposure to C++, Python, or Java 
  • Experience working with trading desks or in financial services 
  • Knowledge of asset classes (e.g. FX, rates, commodities) 
  • Interest in moving from Excel-based development into modern platforms 

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 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.

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
,[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.] Requirements: C++, Java, Communication skills, Spring, Spring Boot, Spring Framework, SQL, Multithreading, Maven, CI/CD, electronic trading systems, brokerage platforms, financial services technology Additionally: Modern technologies.