APAC Data Center Site Engineer

Overview

At Citadel Securities, technology powers everything we do. From real-time market connectivity to ultra-low latency trading and risk systems, our infrastructure must be fast, reliable, and secure—at all times. As an APAC Data Centre Site Engineer, you’ll be at the forefront of that mission. This is not just a data centre role—it’s a chance to design, deploy, and optimize infrastructure in high-performance environments where every millisecond matters. You’ll work directly with elite engineers, technologists, and traders to solve complex challenges that move global markets.

Location

Hong Kong

Objectives

• Deploy and maintain cutting-edge hardware across APAC exchange colocation and general-purpose data centres
• Lead onsite delivery for large-scale infrastructure rollouts, including racks, cabling, power, servers, and networking
• Ensure seamless integration of servers, network switches, and storage systems into Citadel’s global trading stack
• Troubleshoot and optimize infrastructure performance using advanced testing and diagnostic tools
• Collaborate with global engineering teams to deliver scalable, reliable, and low-latency environments
• Travel across the APAC region to support business-critical deployments and initiatives

Skills and Qualifications

Technical Skills

• 5+ years of hands-on experience in colocations and data centres, ideally in financial or high-performance environments
• Deep understanding of hardware lifecycle management and maintenance across: network (Cisco, Arista, Raritan); smart electrical systems and PDUs; expertise in installing and cabling equipment (fiber/copper), including termination, testing, and certification; familiarity with infrastructure diagnostic tools: OTDR, light meters, cable testers; understanding of cross-connect deployment in colocation and exchange environments
• Proficiency in Windows 11/10, MS Office; basic Linux knowledge a plus
• Experience with baseboard management tools: ILO, iDRAC, or equivalent

Operational & Business Execution

• Proven track record managing distributed data centre operations across multiple countries and time zones
• Strong ability to plan and execute large-scale rollouts while maintaining strategic oversight
• Experience bridging knowledge across server, network, and storage domains
• Skilled in managing vendor relationships and evaluating colocation contracts
• Organized and self-directed, with the ability to balance competing demands and ensure uptime
• Familiarity with data centre safety standards and operational best practices
• Excellent verbal and written communication in English; fluency in Mandarin, Cantonese, or Hindi is a strong plus
• Willingness to travel frequently across the APAC region

Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel Securities, please share your details and we will contact you if there is a vacancy available.

About Citadel Securities

Citadel Securities is the next-generation capital markets firm and a leading global market maker. We provide institutional and retail investors with the liquidity they need to trade a broad array of equity and fixed income products in any market condition. The brightest minds in finance, science and technology use powerful, advanced analytics to solve the market’s most critical challenges, turning big ideas into real-world outcomes.

Seniority level: Mid-Senior level

Employment type: Full-time

Job function: Data Center / Infrastructure