Christopher Johnston
Head Of North America Compute at Citadel
Baldwin, New York, United States
Summary
👤
Senior🎓
Top SchoolChristopher Johnston is a seasoned infrastructure and compute leader with 14+ years driving low-latency, x86 hardware and cloud platforms for top-tier quantitative trading firms. Currently Head of North America Compute at Citadel, he built and led platform Linux and infrastructure teams at Millennium, PDT Partners, Jump Trading and others, shaping high-performance, storage and DevOps environments where milliseconds matter. He blends hands-on systems engineering with executive leadership—having served as CIO and Head of Infrastructure at fintech startups—bridging strategic planning and detailed hardware-level optimization. Based in Baldwin, New York, Christopher is known for squeezing predictable, repeatable performance out of complex stacks and for translating trading requirements into operationally resilient compute systems.
14 years of coding experience
24 years of employment as a software developer
Baldwin
Github Skills (153)
python10
automation10
infrastructure10
dhcp10
remote-execution10
package-repository10
infrastructure-management10
scale10
event-stream10
tftp10
cobbler10
configuration-management10
iot10
solaris10
salt10
Programming languages (7)
Github contributions (5)
cobbler/cobbler
Dec 2011 - Nov 2013
Cobbler is a versatile Linux deployment server
Contributions:5 commits in 1 year 11 months
tftppythondeploymentlinuxdocker
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