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Open nowPosted 52 days ago

Senior Network Engineer - Trading Infrastructure

Zanskar16 open roles

Where
Bengaluru
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Your applicationOpen nowSenior Network Engineer - Trading InfrastructureZanskar · Bengaluru

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The clock on this job

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Share of postings closed within
  1. 2.1%1 day
  2. 4.4%3 days
  3. 11.5%7 days
  4. 18.1%14 days
  5. 35.6%30 days
  6. 44.6%60 days
This job: posted 52 days ago

The posting

About the Role

We're looking for a Senior Network Engineer to own the design, build, and operation of our trading network and server estate. You'll be accountable for end-to-end latency across colocation sites, exchange connectivity, and internal fabric - measured in nanoseconds, not milliseconds. This is a hands-on, high-ownership role at the intersection of networking, systems engineering, and trading infrastructure.

What You'll Do

  • Architect, deploy, and tune low-latency switching fabric (Arista 7130/7150, Exablaze, Cisco Nexus) and exchange cross-connects
  • Manage exchange and market-data connectivity: multicast feeds, A/B feed arbitration, order entry sessions, and colo cage buildouts
  • Build and tune trading servers end to end - BIOS/UEFI settings, C-states, P-states, turbo, hyperthreading, NUMA topology, and PCIe lane placement
  • Own Linux kernel tuning: IRQ affinity, CPU isolation and shielding, hugepages, scheduler and NIC driver tuning, and kernel bypass (Solarflare Onload, Exanic, DPDK)
  • Automate server provisioning, configuration, and deployment across colo sites - no snowflake boxes, everything reproducible from code
  • Own the monitoring and observability stack for network, servers, and latency telemetry, including alerting and on-call escalation
  • Deploy and maintain precision timing infrastructure: PTP/White Rabbit, GPS grandmasters, hardware timestamping
  • Build latency measurement pipelines - tap aggregation, packet capture, and correlation of wire-to-wire and tick-to-trade metrics
  • Lead capacity planning, vendor and carrier management, and new venue onboarding
  • Mentor and grow a small team of network and systems engineers; set standards and run change control for production trading systems

Required Qualifications

  • 5+ years in network/systems engineering, including 2+ years in HFT, prop trading, market making, or a comparable ultra-low-latency environment
  • Deep hands-on expertise with low-latency switching, multicast, BGP/OSPF, and exchange connectivity
  • Strong Linux internals knowledge - kernel tuning, performance profiling, and troubleshooting under production load
  • Demonstrated experience with server-level hardware and firmware optimization for latency
  • Configuration management and deployment at scale: Ansible and Puppet (or Salt/Chef), PXE/kickstart provisioning, golden image and firmware lifecycle management, Git-based change workflows, and CI-driven rollout
  • Monitoring and observability experience with Prometheus and Grafana, plus practical exposure to several of: Zabbix, Nagios/Icinga, Telegraf/InfluxDB, Netdata, collected, ELK/Loki, SNMP-based network monitoring, LibreNMS, and Corvil/Beeks or equivalent latency monitoring platforms - must be able to build dashboards and alerting from scratch, not just consume them
  • Comfort with packet capture and analysis tools (tcpdump, Wireshark, hardware-timestamped capture)
  • A track record operating production systems where downtime has direct financial impact

Nice to Have

  • Python (or C/C++, Go) for automation, telemetry pipelines, and latency analysis tooling
  • FPGA/SmartNIC exposure (Xilinx, Napatech, Arista MetaWatch)
  • Terraform, containerization, and infrastructure-as-code beyond config management
  • Familiarity with venue-specific protocols (FIX, ITCH/OUCH, exchange-native binary APIs)
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