Senior Engineer, Trading Platform Engineering

Bullish is an institutionally focused global digital asset platform that provides market infrastructure and information services. The company is looking for a Senior Engineer to join its Trading Platform Engineering team, responsible for designing and optimizing high-performance systems using C and Java.

Requirements

• Design, build, and optimize high-performance systems using C and Java
• Engineer performance-critical components across user space and kernel interfaces, focusing on memory, scheduling, I/O, and networking paths
• Develop and tune networking pipelines (multicast/unicast UDP and TCP) and implement kernel-bypass or fast-path networking (e.g., DPDK, XDP)
• Interact with and optimize Linux kernel subsystems, including memory management, schedulers, device drivers, and filesystems (VFS)
• Optimize systems for deterministic latency through CPU isolation, thread pinning, NUMA locality, cache awareness, and lock contention reduction
• Apply distributed systems patterns, such as sequencer (virtual synchrony), for total ordering and consistency
• Use tools like perf, strace, eBPF, and flame graphs to identify and eliminate system bottlenecks
• Collaborate cross-functionally to deliver robust production systems with clear SLOs, reproducible performance tests, and actionable runbooks

Benefits

• Generous Paid Time Off
• 401k Matching
• Retirement Plan
• Visa Sponsorship
• Four Day Work Week
• Generous Parental Leave
• Tuition Reimbursement
• Relocation Assistance