Senior Software Engineer – Low Latency Trading / Core Java

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

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.