Jeffrey Kleiss
Portland, Oregon, United States
Summary
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SeniorJeffrey Kleiss is a seasoned software engineer, architect, and founder with over a decade of experience building secure, high-performance backend systems and microservice architectures for fintech and large-scale web platforms. He has led technical teams through acquisitions and regulatory integrations—most notably as CTO of Gatsby Digital (acquired by eToro) and as Head Architect of Options at eToro—bringing practical expertise in options trading, fraud detection, and compliance systems. Comfortable both as an individual contributor and an engineering leader, he excels at designing cloud-native infrastructures that make developers more productive and resilient. Jeffrey is currently exploring production AI through a hands-on personal project, Lithy, which applies deep learning to tame browser tab clutter—an example of his ongoing focus on developer UX and applied ML. Based in Portland, he blends entrepreneurial drive with proven delivery across startups and enterprises, and holds a BS in Computer Science.
14 years of coding experience
Github Skills (42)
kotlin10
asynchronous10
async9
gwt9
logstash9
dto8
heartbeat8
filebeat8
metricbeat7
java7
webapp7
generator7
packetbeat7
xml7
parser7
Programming languages (5)
Github contributions (5)
slotted/slotted
Apr 2012 - Nov 2016
Contributions:250 commits, 3 PRs, 35 pushes in 4 years 8 months
activitiesgwt
reladev/quickdto
Apr 2015 - Feb 2019
Generator for DTO Boilerplate
Contributions:107 commits, 4 PRs, 60 pushes in 3 years 10 months
generatorboilerplatedto
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