Description
Senior/Staff Engineer, Liquidity Platform, Trading Service
Location: Hong Kong, Hong Kong SAR
Department: Engineering
Who We Are
OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves.
Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er.
OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.
Key Responsibilities
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Design and optimize high throughput order execution systems with sub-millisecond latency targets
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Build real time market data pipelines aggregating order books and price feeds from multiple exchanges
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Implement position tracking with exchange reconciliation, risk limits, and multi account support
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Develop exchange connectivity using FIX 5.0+, WebSocket, and HTTP/2 protocols
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Profile and eliminate latency hotspots using garbage free coding and lock free concurrency
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Implement pre-trade risk controls, circuit breakers, and rate limiters
Qualifications
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Solid STEM (Science/Technology/Engineering/Mathematics) education background.
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5-8 years software development experience, preferably in trading/oms/latency sensitive systems
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Strong Java 17+ proficiency with understanding of JVM internals and GC behavior
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Hands-on experience with FIX 5.0+, WebSocket, and HTTP/2 protocols
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Solid multi-threaded programming and concurrent systems knowledge
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Understanding of order lifecycle and market microstructure basics
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Strong problem solving skills and attention to detail
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Excellent communication and collaboration skills
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Ability to work independently and as part of a team in a fast paced environment
Preferred Skills
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Cryptocurrency/Digital Assets: Crypto exchange APIs, DeFi, blockchain trading
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Execution Algorithms: TWAP, VWAP, iceberg, sniper, or other smart order routing strategies
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IPC Technologies: Aeron, Chronicle Queue, shared memory messaging
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Proficiency or strong interest in Rust for performance critical systems development
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Low latency libraries: Agrona Collections, Protocol Buffers, SBE for high performance serialization
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Spring Framework, Netty, Vert.x
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Timeseries databases (e.g InfluxDB)
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Redis, etcd for caching and coordination
Technical Environment
Languages: Java 17+, Rust, Python
Protocols: FIX 5.0+, WebSocket, HTTP/2
Stack: Spring, Netty, Aeron, Chronicle Queue, Redis, MySQL, InfluxDB
Perks & Benefits
- Competitive total compensation package
- L&D programs and education subsidy for employees' growth and development
- Various team building programs and company events
- Wellness and meal allowance
- Comprehensive healthcare schemes for employees and dependants
- More that we love to tell you along the process!
Please note that Hong Kong is a group-level service hub, and OKX does not carry on a business of operating a virtual asset trading platform in Hong Kong.
#LI-DY #LI-ONSITE
Notice:
All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website.
Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX's Candidate Privacy Notice.
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