Network Engineer

Network Engineer | 170k Bonus | Hybrid 2 days a week in Manhattan

What you'll get

Work with cutting-edge network hardware and ultra-low-latency tech

High autonomy, high visibility, and direct collaboration with trading leadership

Competitive compensation packages are typical of NYC financial engineering teams

What You’ll Do

• Architect and optimize low-latency network topologies for high-frequency and algorithmic trading workloads
• Engineer deterministic, high-performance connectivity between exchanges, colocation data centers, and trading systems
• Tune routing at an expert level using BGP, OSPF, multicast, and custom latency-optimized configurations
• Reduce hop count, jitter, and microburst issues through selective hardware choices, tuning, buffer management, and NIC optimization
• Support low-latency hardware: Arista, Cisco Nexus, Juniper QFX, Exablaze, Solarflare/Mellanox
• Improve multicast distribution performance for market data feeds
• Lead L3 escalations for complex routing, packet flow, microburst, and throughput issues
• Implement circuit upgrades (10/40/100G) and optimize cross-connects inside colo facilities
• Collaborate with trading teams to benchmark performance and shave microseconds off critical paths
• Use packet capture tools (Corvil/Viavi, ExaNIC, Scapy, tcpdump) for forensic and performance tuning analysis
• Develop automation for deployment, monitoring, and configuration using Python, Ansible, Go, or similar
• Manage relationships with Tier 1 carriers, dark fiber providers, and exchange connectivity teams
• Ensure fault-tolerance and rapid failover for trading-critical infrastructure

What We’re Looking For

• 7–12+ years of deep hands-on network engineering experience
• Strong background in financial services, trading, or exchange/colo networking
• Expert-level understanding of:
• Low-latency switching (Arista 7150/7280, Juniper QFX, Cisco Nexus)
• Routing protocols optimized for deterministic behavior
• Multicast market data distribution (PIM-SM, IGMP, UDP tuning)
• Layer 1/Layer 0 connectivity (DWDM, dark fiber, cross-connects)
• Experience with colo environments like Equinix, NY4/NY5, CH2, LD4
• Hands-on experience with:
• Packet capture / real-time performance tools (Corvil, Exablaze, Solarflare, Novaflow)
• Network jitter/burst mitigation
• Latency benchmarking and analytics
• Strong scripting/automation: Python, Ansible, or Go
• Financial market infrastructure experience strongly preferred
• Certifications (nice to have): CCNP/CCIE, JNCIP/JNCIE, Arista ACE, NSE 7/8

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