Java Developer - Low Latency Systems (FinTech)

Vertus Partners; London; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

A dynamic fintech company in London is seeking a skilled Java Developer specializing in low-latency systems. The ideal candidate will have over 5 years of experience in Java development, focusing on performance optimization for real-time financial applications. This hybrid role offers a competitive salary, performance-based bonuses, and opportunities for professional growth in a collaborative environment.

Benefits

Competitive salary

Performance-based bonuses

Professional growth opportunities

Qualifications

• 5+ years of professional Java development experience.
• Strong knowledge of multithreading, concurrency, and memory management.
• Experience with low-level performance tuning in transactional systems.

Responsibilities

• Design, develop, and maintain high-performance Java applications.
• Optimize throughput and minimize latency for real-time financial markets.
• Collaborate with teams to deliver scalable solutions.

Skills

Java Development

Performance Optimization

Multithreading

Real-time Systems

Tools

TCP/IP

UDP

Linux

Job description

Java Developer - Low Latency Systems (FinTech)

£90000 - £130000 per annum + + Benefits and Bonus, Hybrid

Contact email:

[e-mail]

Job ref:

LL/HH/1509_1757934588

Startdate:

ASAP

Java Developer - Low Latency Systems (FinTech)

Location: London (Hybrid)

Are you an experienced Java Developer with a passion for working on cutting-edge, low-latency systems? Join a dynamic and innovative fintech, delivering high-performance solutions in the world of financial markets. We're looking for a talented Mid/Senior Java Developer to contribute to our mission of building the fastest, most reliable systems in the industry.

What You'll Do:

• Design, develop, and maintain high-performance, low-latency Java applications for mission-critical trading systems.
• Work on optimising throughput and minimizing latency to meet the demands of real-time financial markets.
• Collaborate with cross-functional teams to deliver scalable solutions that handle large volumes of data with minimal delay.
• Troubleshoot and resolve performance bottlenecks and implement solutions that enhance system reliability.
• Participate in full SDLC, from technical design through to testing, deployment, and monitoring.

What You'll Bring:

• 5+ years of professional Java development experience, with a focus on performance and low-latency applications.
• Strong knowledge of multithreading, concurrency, and memory management in Java.
• Experience with low-level performance tuning and optimization in highly transactional systems.
• Familiarity with network programming (TCP/IP, UDP) and high-throughput messaging systems.
• Experience working in a high-performance environment, preferably within fintech, trading, or real-time systems.
• Excellent problem-solving skills, and an ability to work well in a fast-paced, collaborative environment.

Bonus Skills:

• Exposure to financial markets or trading platforms.
• Experience with Linux, distributed systems, and high-frequency trading environments.
• Knowledge of JVM internals and garbage collection tuning.

What's on Offer:

• A chance to work on industry-leading low-latency solutions.
• A collaborative, innovative environment with a strong focus on performance and quality.
• Competitive salary and performance-based bonuses.
• Opportunities for professional growth and development.

By submitting your details you agree to our T&Cs