Senior Core Java Engineer with low/ultra-low latency trading experience. Must know market data, order books, concurrency, TCP/UDP, Linux, and production latency troubleshooting.
Job description
Job Summary
We are seeking a Senior Core Java Engineer with recent, hands-on experience developing low- or ultra-low-latency electronic trading systems. The ideal candidate will have a strong understanding of actual trading workflows and experience building performance-sensitive backend systems.
Location: Chicago, IL – Hybrid (2 days onsite required)
Type: Long-term Contract
Preferred Background
Candidates with experience in the following areas are highly preferred:
Matching engines
Order books
Market data processing
Exchange connectivity
Order routing
Trading gateways
Other performance-sensitive backend trading systems
Experience within trading firms, banks, or exchanges
Job requirements
Required Skills & Experience
Strong expertise in Core Java
Recent hands-on experience with low-latency or ultra-low-latency electronic trading
Strong understanding of market data, order books, and trading logic
Excellent knowledge of multithreading and concurrency
Experience with TCP/UDP networking
Strong Linux experience
Proven experience with production performance and latency troubleshooting
Experience developing performance-sensitive backend trading systems
Important Candidate Requirements
Candidates must have actual low-latency trading development experience. Financial-services experience alone is not sufficient.
