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Senior Java Developer - FX Trading Platform

GFT Technologies SEKraków, PL

18 days ago

Job description

What will you do?

You will be fully involved in the development of a high-performance FX trading platform, working closely with the Client’s engineering team. The system includes components such as real-time pricing engines, connectivity to exchanges and market data providers (e.g. Bloomberg), and infrastructure supporting low-latency execution. Your core responsibility will be the design, development and continuous optimization of trading components with a strong focus on throughput and latency. The role requires a deep understanding of high-frequency trading architectures, efficient memory management, and performance-critical Java development. You’ll be working in an environment where microseconds matter — contributing directly to the speed, stability, and scalability of the system.

Your tasks :

Design, develop, and maintain components of a high-performance FX trading platform
Optimize system architecture and application code for ultra-low latency and high throughput
Implement and enhance real-time pricing engines and market data connectivity (e.g. Bloomberg, exchanges)
Collaborate closely with the Client’s engineering team in a hybrid model (2 days / week onsite)
Apply advanced Java techniques (off-heap memory, lock-free algorithms, GC tuning) in performance-critical contexts
Ensure reliability and scalability of the trading infrastructure under high load
Participate in code reviews and contribute to high-quality engineering standards
Monitor and profile application performance using appropriate tools and methodologies
Work in an agile environment with active involvement in technical discussions and continuous improvement

Your skills  :

At least 5 years of practical experience in Java with focus on low latency performance optimization (off-heap memory management, lock-free algorithms, GC tuning)

Deep understanding of high-frequency trading system architecture

Experience with specialized trading protocols (FIX, FAST, market-specific binary protocols)

Practical experience in implementing design processes ensuring high quality of solutions provided

Practical knowledge of the Scrum methodology or similar agile methodology

Good communication skills and ability to establish effective cooperation with clients

Fluent English and readiness for frequent written, phone or direct communication

Availability to work in a hybrid mode – twice a week from the office (GFT or client)

Nice to have  :

Experience with time-series databases and real-time analytics platforms

Experience with capacity planning for trading system infrastructure

Knowledge of Test Driven Development methodology

Experience with FPGA, hardware acceleration or co-located exchange connectivity

Familiarity with performance profiling tools (JMH, YourKit, Honest Profiler)

Work experience in distributed teams

We offer you :

Hybrid work – 2 days a week in our / our client's office

Working in a highly experienced and dedicated team

Competitive salary and extra benefit package that can be tailored to your personal needs (private medical coverage, sport & recreation package, lunch subsidy, life insurance, etc.)

Contract of employment or B2B contract

On-line training and certifications fit for career path

Free on-line foreign languages lessons

Regular social events

Access to e-learning platform

Remote work option available for candidates outside GFT office locations (Lodz, Krakow, Warszawa, Poznan, Wroclaw).

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Senior Java Developer • Kraków, PL