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- Tasks: Design and build ultra-low latency trading systems that process market data and execute strategies.
- Company: Leading global quantitative trading firm with a focus on technical excellence.
- Benefits: Market-leading salary, performance bonuses, and comprehensive benefits package.
- Why this job: Join an elite team and make a measurable impact in systematic trading.
- Qualifications: Outstanding Java development experience and strong understanding of performance-critical environments.
- Other info: Collaborative culture with direct visibility of your engineering impact.
The predicted salary is between 48000 - 72000 £ per year.
A leading global quantitative trading firm is seeking an exceptional Java Engineer to join one of the highest-performing engineering teams in systematic trading. This firm operates at the forefront of low-latency technology, where software performance directly drives trading outcomes. The successful candidate will work on highly optimised, mission-critical trading infrastructure alongside elite engineers, researchers, and traders. This is a highly selective environment focused on technical excellence, ownership, and measurable impact.
You will design and build ultra-low latency, high-throughput trading systems responsible for processing market data and executing strategies across global markets. The role involves solving complex distributed systems challenges, optimising performance at the JVM and hardware level, and partnering closely with quantitative researchers to deliver production-grade trading platforms.
Key Responsibilities- Design and develop high-performance Java trading infrastructure
- Build systems processing millions of events per second with deterministic latency requirements
- Optimise JVM behaviour, memory management, and concurrency models
- Identify and eliminate performance bottlenecks across CPU, network, and storage layers
- Collaborate directly with traders and researchers to implement and scale trading strategies
- Influence architectural decisions across critical trading platforms
- Maintain exceptional engineering standards across reliability, scalability, and code quality
- Outstanding Java development experience in performance-critical environments
- Deep understanding of:
- JVM internals
- Multithreading and lock-free concurrency
- Garbage collection and memory optimisation
- Low-latency messaging and network programming
- Experience within systematic trading, HFT, or market-making environments
- Background in other performance-sensitive industries (real-time gaming, telecoms, high-scale infrastructure, etc.)
- Experience with C++ or other systems programming languages
- Familiarity with CPU architecture and hardware-aware optimisation
- Contributions to open-source or performance-focused projects
- Strong academic background in Computer Science, Mathematics, Physics, or related disciplines
- Small, highly collaborative engineering teams
- Strong focus on technical autonomy and ownership
- Direct visibility of engineering impact on trading performance
- Low-bureaucracy, high-performance culture
- Access to cutting-edge trading infrastructure and research collaboration
- Market-leading base salary
- Significant performance-based bonus potential
- Strong long-term earning opportunity
- Comprehensive benefits package
Java Software Engineer in London employer: Block MB
Contact Detail:
Block MB Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Java Software Engineer in London
✨Tip Number 1
Network like a pro! Get out there and connect with people in the industry. Attend meetups, conferences, or even online webinars. You never know who might have the inside scoop on job openings or can refer you directly to hiring managers.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those related to low-latency systems or high-throughput applications. This will give potential employers a taste of what you can do and set you apart from the crowd.
✨Tip Number 3
Prepare for technical interviews by brushing up on your Java skills and understanding JVM internals. Practice coding challenges that focus on performance optimisation and multithreading. We recommend using platforms that simulate real interview scenarios.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive about their job search!
We think you need these skills to ace Java Software Engineer in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to highlight your Java expertise and experience in performance-critical environments. We want to see how your skills align with the role, so don’t be shy about showcasing your achievements in low-latency systems!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re passionate about ultra-low latency trading systems and how your background makes you a perfect fit for our team. Let us know what excites you about the opportunity!
Showcase Relevant Projects: If you've worked on any projects related to high-throughput distributed systems or performance optimisation, make sure to mention them. We love seeing real-world examples of your work that demonstrate your technical prowess and problem-solving skills.
Apply Through Our Website: We encourage you to apply through our website for a smoother application process. It helps us keep track of your application and ensures you get the attention you deserve. Plus, it’s super easy!
How to prepare for a job interview at Block MB
✨Know Your Java Inside Out
Make sure you brush up on your Java skills, especially in performance-critical environments. Be ready to discuss JVM internals, multithreading, and memory optimisation. They’ll likely ask you to solve problems on the spot, so practice coding challenges that focus on these areas.
✨Understand Low-Latency Systems
Familiarise yourself with the principles of low-latency messaging and network programming. Be prepared to explain how you would design systems that can handle millions of events per second. Having examples from your past experience will really help you stand out.
✨Showcase Your Problem-Solving Skills
Expect to tackle complex distributed systems challenges during the interview. Think about previous projects where you identified and eliminated performance bottlenecks. Be ready to walk through your thought process and the impact of your solutions.
✨Collaborate and Communicate
This role involves working closely with traders and researchers, so demonstrate your ability to collaborate effectively. Prepare to discuss how you’ve worked in teams before and how you communicate technical concepts to non-technical stakeholders.
