At a Glance
- Tasks: Join a team to develop high-performance trading systems using Java and low-latency technologies.
- Company: Major financial institution focused on innovative, precision-driven software engineering.
- Benefits: Competitive salary, flexible schedule, medical insurance, and professional development opportunities.
- Other info: Collaborative environment with a focus on career growth and technical excellence.
- Why this job: Elevate your skills while working on cutting-edge projects that power global trading platforms.
- Qualifications: Strong Java skills and experience with low-latency systems and performance tuning.
The predicted salary is between 70000 - 90000 £ per year.
We're looking for Senior and Principal Java Developers with a strong background in low-latency systems to join us on a high-performance trading and real-time data project, for a major financial institution. You’ll be joining an environment where good software engineering truly matters, where clean design, measurable performance, and deep system understanding are valued. This is an opportunity to work alongside recognised low‑latency specialists, elevate your expertise, and contribute to systems that demand precision and technical excellence. We’re looking for developers who are technically exceptional, but also pragmatic engineers who love to understand how things work under the hood, measure performance precisely, and continuously refine their craft.
Essential Functions
- You’ll work on mission‑critical applications where performance, scalability, and reliability truly matter – the kind of systems that power global trading platforms and require a deep understanding of how the JVM and Linux really work.
- Your work will focus on writing and tuning high-performance Java frameworks, improving throughput and latency, and applying event-driven, microservice-based architectures.
- You’ll collaborate closely with other talented engineers, helping to shape elegant solutions to complex, performance-sensitive problems.
Qualifications
- Strong Java skills with deep knowledge of the JVM
- Proven experience building or optimizing low-latency systems
- Familiarity with performance tuning and profiling tools (e.g., JMH, async-profiler, Flight Recorder)
- Solid understanding of multithreading, concurrency, and memory management
- Experience with microservice architectures and event-driven systems
- Strong Linux fundamentals and comfort with performance diagnostics
- Clear communication skills and ability to articulate design and performance decisions
Nice to Have
- Experience with high-performance messaging (Chronicle Queue/Wire, Aeron, ZeroMQ, Kafka tuning)
- Familiarity with off‑heap or direct memory structures (Chronicle Map, VarHandles, DirectByteBuffers)
- Networking/I/O frameworks such as Netty or custom FIX engines
- Exposure to OpenHFT, LMAX Disruptor, or similar performance-focused frameworks
- Prior experience in trading, financial markets, or real-time data systems
- Ability to produce clear, lightweight documentation or UML diagrams when needed
We Offer
- Opportunity to work on bleeding-edge projects
- Work with a highly motivated and dedicated team
- Competitive salary
- Flexible schedule
- Benefits package – medical insurance, sports
- Corporate social events
- Professional development opportunities
- Well-equipped office
Senior/Principal Java Engineer - Low Latency employer: Grid Dynamics Holdings
At Grid Dynamics, we pride ourselves on being an excellent employer, offering a dynamic work culture that fosters innovation and collaboration. As a Data Governance Lead, you will have the opportunity to work on cutting-edge sustainability initiatives while enjoying a competitive salary, flexible schedules, and comprehensive benefits, including medical insurance and professional development opportunities. Join us in making a real-world impact through technology, all within a supportive environment that values your growth and contributions.
StudySmarter Expert Advice🤫
We think this is how you could land Senior/Principal Java Engineer - Low Latency
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those who work in low-latency systems. A friendly chat can lead to insider info about job openings or even a referral.
✨Tip Number 2
Show off your skills! Consider contributing to open-source projects related to Java or low-latency systems. This not only sharpens your skills but also gives you something impressive to talk about in interviews.
✨Tip Number 3
Prepare for technical interviews by brushing up on performance tuning and multithreading concepts. Practise coding challenges that focus on low-latency scenarios to demonstrate your expertise.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, we love seeing candidates who are proactive about their job search.
We think you need these skills to ace Senior/Principal Java Engineer - Low Latency
Some tips for your application 🫡
Tailor Your CV:Make sure your CV highlights your strong Java skills and experience with low-latency systems. We want to see how your background aligns with the role, so don’t be shy about showcasing relevant projects and achievements!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you’re passionate about working on high-performance trading systems and how your expertise can contribute to our team. Keep it concise but impactful!
Showcase Your Technical Skills:When applying, be sure to mention any specific tools or frameworks you’ve used, like JMH or Kafka tuning. We love seeing candidates who are familiar with performance tuning and profiling tools, so let us know what you’ve got!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen to join our team!
How to prepare for a job interview at Grid Dynamics Holdings
✨Know Your Java Inside Out
Make sure you brush up on your Java skills, especially around low-latency systems. Be prepared to discuss your experience with the JVM, multithreading, and performance tuning tools like JMH or async-profiler. They’ll want to see that you can not only write code but also understand how it performs under pressure.
✨Showcase Your Problem-Solving Skills
Be ready to tackle some technical challenges during the interview. Think about how you would approach optimising a low-latency system or improving throughput. Use real examples from your past work to illustrate your thought process and how you’ve solved similar problems before.
✨Communicate Clearly and Confidently
Since clear communication is key, practice articulating your design and performance decisions. You might be asked to explain complex concepts, so make sure you can break them down into understandable terms. This will show that you not only know your stuff but can also share it effectively with others.
✨Familiarise Yourself with the Company’s Tech Stack
Do a bit of homework on the technologies they use, such as microservice architectures and event-driven systems. If you have experience with specific tools like Chronicle Queue or Kafka, be ready to discuss how you’ve used them in your projects. This shows genuine interest and helps you stand out as a candidate who fits their needs.
