At a Glance
- Tasks: Join a team to develop high-performance Java systems for global trading platforms.
- Company: Grid Dynamics, a leader in technology consulting and advanced analytics.
- Benefits: Competitive salary, flexible schedule, medical insurance, and professional development opportunities.
- Other info: Collaborative environment with a focus on innovation and career growth.
- Why this job: Work on cutting-edge projects that shape the future of finance and technology.
- Qualifications: Strong Java skills and experience with low-latency systems required.
The predicted salary is between 60000 - 80000 € 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.
ResponsibilitiesYou’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. This is an opportunity to bring world‑class engineering principles to projects at the very heart of modern finance. 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.
Requirements- Strong Java skills with deep knowledge of the JVM
- Proven experience building or optimising 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
- 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
- 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 in London employer: Grid Dynamics
At Grid Dynamics, we pride ourselves on being an exceptional employer, offering a dynamic work culture that values technical excellence and innovation. Our team of Senior and Principal Java Engineers will thrive in a collaborative environment, working on cutting-edge projects that shape the future of finance while enjoying competitive salaries, flexible schedules, and comprehensive benefits. With ample opportunities for professional development and a commitment to employee growth, joining us means becoming part of a forward-thinking company that truly invests in its people.
StudySmarter Expert Advice🤫
We think this is how you could land Senior/Principal Java Engineer - Low Latency in London
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, attend meetups, and engage in online forums. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those related to low-latency systems. This gives potential employers a taste of what you can do and sets you apart from the crowd.
✨Tip Number 3
Prepare for technical interviews by brushing up on your Java skills and understanding JVM intricacies. Practice coding challenges that focus on performance tuning and multithreading to impress during the interview.
✨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 in London
Some tips for your application 🫡
Show Off Your Java Skills:Make sure to highlight your strong Java skills and any experience you have with low-latency systems. We want to see how you've tackled performance tuning and profiling in your past projects, so don’t hold back!
Be Clear and Concise:When writing your application, clarity is key! Use straightforward language to explain your experience and how it relates to the role. We appreciate a well-structured application that gets straight to the point.
Demonstrate Your Problem-Solving Skills:We love engineers who can think critically about complex problems. Share examples of how you've approached performance-sensitive challenges in the past, and what solutions you implemented to overcome them.
Apply Through Our Website:Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity. We can’t wait to hear from you!
How to prepare for a job interview at Grid Dynamics
✨Know Your Java Inside Out
Make sure you brush up on your Java skills, especially around the JVM. Be prepared to discuss how you've optimised low-latency systems in the past and be ready to dive deep into technical discussions about performance tuning and profiling tools like JMH or Flight Recorder.
✨Showcase Your Problem-Solving Skills
During the interview, be ready to tackle complex, performance-sensitive problems. Think of examples from your previous work where you’ve had to design elegant solutions under pressure. This is your chance to demonstrate your understanding of multithreading, concurrency, and memory management.
✨Familiarise Yourself with Microservices
Since the role involves working with microservice architectures and event-driven systems, make sure you can articulate your experience with these technologies. Discuss any relevant projects where you’ve implemented or improved such systems, and be prepared to explain your design choices.
✨Communicate Clearly and Confidently
Clear communication is key, especially when discussing design and performance decisions. Practice explaining your thought process and be ready to produce lightweight documentation or UML diagrams if asked. This will show that you can convey complex ideas effectively, which is crucial in a collaborative environment.
