Lead Network Engineer

Key Responsibilities

Infrastructure Ownership and Architecture

- Own the complete lifecycle of trading infrastructure including design, deployment, optimization, and operations

- Architect scalable, resilient, and deterministic infrastructure for latency-sensitive trading workloads

- Ensure high availability, performance consistency, and fault tolerance across environments

Network Engineering

- Design and manage ultra-low latency network architectures using L2 and L3 protocols

- Deep expertise in multicast, PTP, GPS clocking, time synchronization, and timestamping

- Manage exchange connectivity, market data feeds, cross-connects, and order entry paths

- Optimize switches, NICs, and network paths for microsecond and nanosecond-level performance

Data Centre and Colocation Management

- Own exchange colocation strategy across multiple markets and venues

- Manage rack design, cabling standards, power planning, cooling, and space utilization

- Coordinate installations, audits, and upgrades with exchanges and colocation providers

- Oversee dark fiber, metro links, and third-party connectivity providers

Linux and Systems Engineering

- Build and maintain high-performance Linux environments for trading and market data systems

- Perform kernel tuning, CPU isolation, NUMA optimization, IRQ tuning, and real-time performance enhancements

- Ensure OS level stability, security, and performance best practices

Hardware and Connectivity

- Own selection and validation of servers, NICs, switches, and low-latency hardware components

- Manage firmware, BIOS, and driver configurations for optimal performance

- Oversee hardware procurement, deployment, lifecycle management, and decommissioning

- Ensure optimal physical connectivity and cabling standards within data centres

Operations and Reliability

- Define monitoring, alerting, and incident response frameworks

- Lead root cause analysis for outages, latency spikes, or performance degradation

- Establish robust change management and operational best practices

- Ensure infrastructure meets security and compliance requirements

Leadership and Collaboration

- Lead, mentor, and scale a team of network, infrastructure, and systems engineers

- Partner closely with trading, quant, and development teams to meet performance objectives

- Drive long term infrastructure strategy aligned with trading and business growth

- Manage vendor relationships and negotiate with hardware, exchange, and service providers

Required Skills and Experience

- 5+ years of experience in infrastructure roles within HFT, prop trading, or latency-critical environments

- Deep hands-on expertise in low-latency networking and Linux performance tuning

- Strong experience with exchange colocation setups and market connectivity

- Proven leadership experience managing mission-critical infrastructure teams

- Exceptional troubleshooting and decision-making skills under pressure

Preferred Qualifications

- Prior experience in a leading HFT or proprietary trading firm

- Exposure to FPGA-based trading or market data systems

- Experience with automation, scripting, or infrastructure as code

- Strong understanding of trading infrastructure security and compliance