Mark Lemoine
Senior Software Engineer at ScienceIO
California, United States
Summary
👤
Senior🎓
Top SchoolMark Lemoine is a Senior Software Engineer with 11 years of experience blending backend development, DevOps, and systems administration across fintech, security, and blockchain projects. Based in California, he has driven production-grade Python systems for portfolio backtesting and automation at Research Affiliates, managed large SaaS server fleets and tooling at ThreatMetrix and AOL, and contributed infrastructure and testnet tooling to the Casper blockchain reference node. He prefers well-crafted, testable code and refactoring, and has a demonstrated knack for automating operational workflows—from Ansible invokers to SSL dashboards—to reduce manual toil. With a Computer Science MS from Georgia Tech and a history of improving deployment, orchestration, and parallel processing pipelines, he combines practical ops discipline with hands-on engineering to deliver reliable, scalable systems.
11 years of coding experience
10 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at Georgia Institute of TechnologyBachelor's degree, Computer Science, Bachelor's degree, Computer Science at University of California, Los Angeles
Stackoverflow
4,578reputation
303kreached
8answers
63questions
Github Skills (20)
scripting10
cas10
script10
casperjs10
blockchain10
sh10
shell10
configuration-management9
devops9
rust8
networking8
assemblies6
linker6
closest6
serde6
Programming languages (10)
Github contributions (5)
casper-network/casper-node
Nov 2020 - Mar 2021
Reference node for CASPER protocol
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:50 reviews, 37 commits, 8 PRs in 4 months
Contributions summary:Mark primarily contributes to the Casper-node repository by modifying shell scripts related to network configuration and node management, particularly within the nctl (Casper testnet) utilities. Their work includes enhancing the setup, starting, and stopping of nodes, as well as updating deployment scripts and configuration files for new endpoints. These changes suggest involvement in setting up and configuring the infrastructure for the Casper blockchain nodes and test environments.
ethereumcasperblockchaininternet-computercasper-network
linclelinkpart5/regulus
Aug 2020 - Sep 2021
Contributions:98 commits, 148 pushes, 1 branch in 1 year 1 month
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.