Java 开发工程师 at Bitbaby

Design and develop the exchange market-making quantitative trading system, including core modules such as market data subscription, market-making strategy execution, order placement, risk control, and slippage management
Build low-latency, high-concurrency market-making trading services based on Go / Java, ensuring stability under high-frequency market conditions
Design and implement market-making risk control modules, including position control, exposure limits, order frequency limits, and abnormal market protection
Continuously optimize end-to-end system latency (market data → decision-making → order execution → execution feedback), identify and eliminate performance bottlenecks
Collaborate with matching, risk control, and clearing systems to ensure market-making activities comply with exchange rules and risk requirements
Monitor and analyze market-making performance (spread, depth, fill rate), and continuously improve system efficiency and strategy execution

3+ years of experience in quantitative trading system development
Proficient in Go and Java with real production environment experience
Strong concurrent programming and system design skills, familiar with Go goroutines and Java concurrency frameworks
Practical experience with low-latency systems and understanding of how network latency, serialization, GC, and lock contention affect trading systems
Familiar with risk control models and implementation in trading systems, able to translate rules into stable engineering logic
Familiar with common infrastructure: MySQL, Redis, Kafka (or similar messaging systems)
Strong debugging and troubleshooting skills, able to independently resolve production performance and stability issues

Experience in exchange market-making, quantitative trading, or automated trading systems
Understanding of matching engine principles, order book structure, and order types (Limit, Market, IOC, FOK, etc.)
Experience in derivatives, perpetual contracts, leverage trading, or copy trading market-making
Familiar with Linux performance tuning and production incident handling experience