Senior Linux Systems Engineer — Low-Latency Trading

Millennium; Hong Kong; On-site; HKD 900,000 - 1,300,000; Full time

Job summary

Millennium is seeking a senior Linux-focused SRE/Platform Engineer in Hong Kong to support a high-performance, low-latency trading platform. You will work with infrastructure and application teams to ensure stability, reliability, and scalability in a globally deployed environment.

Responsibilities include incident response, automation, and documentation, with deep Linux tuning and VMware virtualization experience. Financial tech background preferred.

Qualifications

• 5+ years in financial technology services; 3+ years in low-latency trading systems or scalable infra.
• Deep Linux engineering including performance tuning and kernel parameter tuning.
• Experience with enterprise server platforms and virtualization technologies like VMware ESXi/vCenter; networking/DNS/Time sync.

Responsibilities

• Support and maintain Linux, virtualization, and related infrastructure as part of a globally deployed engineering team.
• Build, operate, and improve a high-performance, low-latency trading platform with infra and application support teams.
• Identify, prioritize, and resolve complex incidents and root causes to prevent recurrence.
• Gather requirements, evaluate options, and implement solutions aligned with business needs.
• Monitor platform health and performance; diagnose latency issues and drive remediation.
• Deliver stable, repeatable Linux systems through automation and code-driven engineering.
• Lead technical discussions; communicate clearly with stakeholders across teams.
• Produce clear documentation and participate in on-call support as needed.

Skills

Linux systems engineering

Low-latency Networking

Python scripting

Bash scripting

Automation (Ansible)

Documentation & incident response

Education

Bachelor’s degree in Engineering/CS or equivalent

Tools

VMware ESXi/vCenter

NVIDIA GPU/CUDA (Linux)

Solarflare OpenOnload

DNS/time synchronization (NTP/PTP)

Job description

Millennium is seeking a senior Linux-focused SRE/Platform Engineer in Hong Kong to support a high-performance, low-latency trading platform. You will work with infrastructure and application teams to ensure stability, reliability, and scalability in a globally deployed environment.

Responsibilities include incident response, automation, and documentation, with deep Linux tuning and VMware virtualization experience. Financial tech background preferred.