David Hagar
Senior Director Of Engineering at Abnormal AI
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolDavid Hagar is a seasoned engineering executive with 14 years of experience scaling teams and building high‑impact infrastructure across startups and large tech firms. Currently Senior Director of Engineering at Abnormal AI and formerly a senior leader at Twitter, he has driven projects from runtime search rebuilds and live event streaming to ML feature registries and privacy dashboards that supported GDPR efforts. He combines hands‑on systems and data engineering expertise—having built petabyte-scale pipelines and real‑time scoring services—with proven org design skills, including hiring, career ladders, and interview rubric design. A founder-turned-exec who has contributed technology central to acquisitions and IPOs, he writes about London, startups and tech at LondonTechLife. Notably, he’s comfortable operating across cloud providers and regions, having led efforts to make AWS and GCP operate seamlessly for global engineering teams.
14 years of coding experience
21 years of employment as a software developer
BA Mathematics, BA Mathematics at University of California, Berkeley
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (11)
kairosdb8
java7
timeseries-database6
database5
time-series4
scalable4
monitoring1
server1
alerts1
frame1
monitor1
Programming languages (1)
Github contributions (5)
proofpoint/execution-monitor
May 2012 - May 2012
Contributions:2 commits in 2 days
eventsmonitorframealertsmonitoring
proofpoint/event-collector
May 2012 - Jun 2013
Contributions:12 commits in 1 year 1 month
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