Senior / Principal Java Developer – Low Latency Trading
About the Role
We are looking for multiple Senior and Principal Java Developers to join a high-performing engineering team responsible for building next-generation electronic trading technology.
This is an opportunity to work on business-critical, ultra-low latency trading systems where performance, reliability and scalability are fundamental. You'll design and develop sophisticated event-driven platforms, optimise system performance at every layer of the stack, and help shape the architecture of complex distributed applications used across global financial markets.
We're looking for engineers who are passionate about writing exceptional Java, enjoy solving complex performance challenges, and have a deep understanding of how software interacts with hardware, operating systems and networks.
What We're Looking For
You'll be a passionate engineer who enjoys solving complex technical problems and takes pride in producing elegant, high-quality software. You'll have a collaborative approach, thrive in highly technical environments, and be motivated by building systems where every microsecond matters.
This is an excellent opportunity to join a world-class engineering team working on some of the most demanding low-latency trading technology in the financial industry.
Essential functions
Key Responsibilities
Design and develop ultra-low latency Java applications and frameworks.
Build scalable event-driven microservices supporting mission-critical trading platforms.
Analyse, benchmark and optimise application performance across the JVM, operating system and network stack.
Design clean, maintainable and scalable software architectures.
Implement high-quality, production-ready software following engineering best practices.
Participate in architectural discussions and contribute to technical strategy.
Produce clear technical documentation, including UML sequence diagrams where appropriate.
Collaborate closely with software engineers, architects and business stakeholders to deliver robust solutions.
Qualifications
Essential Skills & Experience
Expert-level Java development experience.
Proven commercial experience building low latency, high-performance applications.
Deep understanding of:
Modern Java
JVM internals
Linux operating systems
Concurrency and multithreading
Performance profiling and optimisation
Strong software architecture and design skills.
Experience delivering complex software projects throughout the full development lifecycle.
Excellent communication skills with the ability to explain complex technical concepts clearly.
Experience with any of the following is highly desirable
High-Performance Messaging
Chronicle Queue / Chronicle Wire
Aeron
Kafka (low-latency implementations)
ZeroMQ
Memory & Performance
Chronicle Map
Direct ByteBuffers
Off-heap memory
Unsafe APIs / VarHandles
Networking
Netty
epoll / kqueue
FIX Protocol
QuickFIX/J
SBE (Simple Binary Encoding)
FIXP
Performance Engineering
JMH (Java Microbenchmark Harness)
Java Flight Recorder
Mission Control
async-profiler
perf
JVM GC tuning (ZGC, Shenandoah, G1)
Specialist Frameworks
OpenHFT libraries
LMAX Disruptor
Aeron Cluster
Lock-free queues and ring-buffer implementations
Would be a plus
Desirable Experience
Electronic trading or algorithmic trading platforms.
FX trading systems.
KDB+.
Grafana.
Experience with Ambrosia low-latency framework.
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
About us
Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.Apply to the position
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Grid Dynamics is an equal opportunity employer. We are committed to creating an inclusive environment for all employees during their employment and for all candidates during the application process.
All qualified applicants will receive consideration for employment without regard to, and will not be discriminated against based on, age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. All employment is decided on the basis of qualifications, merit, and business need.