Senior Developer/Tech lead (Java)

About the Role

We’re looking for a Senior Developer/Tech Lead who thrives on solving complex technical problems and enjoys leading a team 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
• Lead and mentor a team of engineers
• Contribute to architectural decisions and technical direction

What We’re Looking For

• 8+ years of experience in Java development
• Strong fundamentals in algorithms, data structures, and multithreading
• Experience with performance optimization
• Leadership mindset or experience leading teams
• Solid English communication skills

Nice to Have

• Background in competitive programming (ACM, ICPC, Olympiads, etc.)

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.