Senior Java Developer (Remote)
Join a high-performance engineering team building cutting-edge visualization technology used by professional traders worldwide.
About the Role
We’re looking for a Senior Java Developer who thrives on solving complex technical problems and enjoys working on performance-critical systems.
This is a fully remote position, offering flexibility while working on a product that processes massive real-time data streams and delivers high-end visual analytics.
What You’ll Do
Design and develop high-performance desktop applications
Tackle complex challenges in algorithms, data structures, and concurrency
Optimize systems for speed and efficiency under heavy data loads
Contribute to architectural decisions and technical direction
What We’re Looking For
5+ years of experience in Java development
Strong fundamentals in algorithms, data structures, and multithreading
Experience with performance optimization
Solid English communication skills
Nice to Have
Background in competitive programming (ACM, ICPC, Olympiads, etc.)
Experience with Kotlin
What Makes This Role Unique
Focus on desktop application development (no Spring, no off-the-shelf databases)
Work on systems handling hundreds of thousands of events per second
What We Offer
100% remote work with flexible setup
Paid annual and sick leave
Budget for equipment and software (scaled with tenure)
Sponsored training and English lessons
Collaborative, international team environment
Hiring Process
The first step to our process is a paid technical task:
Takes ~90 minutes on average
Please do not use AI
Compensation: $100 (upon successful completion and interview participation)
Focus on performance and correctness
You’ll receive a pass/fail result, and successful candidates will move forward in the process.
About Bookmap
Bookmap is a leading high-performance visualization and trading platform that transforms how market data is understood.
Our platform is widely used across major exchanges, including CME, Eurex, Nasdaq, and crypto markets.
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