Ted Ralphs
Professor at Lehigh University
Bethlehem, Pennsylvania, United States
Summary
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Rockstar🎓
Top SchoolTed Ralphs is a Professor of Operations Research at Lehigh University with 24 years of academic and applied experience bridging mathematical optimization and practical software engineering. He holds advanced degrees from Cornell and Carnegie Mellon and has held visiting and fellowship positions internationally, including at Monash, Newcastle, and the Institute for Advanced Studies in Bologna. His background includes applied analytics work as a lead analyst for the U.S. Air Force and postdoctoral research at Rice, giving him a rare blend of defense, academic, and research perspectives. Ted contributes to open-source optimization tooling as a DevOps engineer on the widely used COIN-OR Cbc solver, improving CI/CD and cross-platform build reliability. Known for translating deep theory into robust computational workflows, he focuses on reproducible, production-ready solver deployments that support decision-making in complex systems. Based in Bethlehem, Pennsylvania, he combines rigorous mathematical training with hands-on infrastructure work to deliver dependable optimization software.
25 years of coding experience
1 year of employment as a software developer
North Penn High SchoolM.S., Ph.D, Operations Research, M.S., Ph.D, Operations Research at Cornell UniversityBS, MS, Mathematics, BS, MS, Mathematics at Carnegie Mellon University
Github Skills (10)
bash10
script10
travis-ci10
build-automation10
cicd10
linux9
windows9
bintray9
github-ci8
githubaction-workflow8
Programming languages (27)
Github contributions (5)
coin-or/Cbc
Mar 2020 - Sep 2022
COIN-OR Branch-and-Cut solver
Role in this project:
DevOps Engineer
DevOps EngineerContributions:9 releases, 2 reviews, 291 commits in 2 years 5 months
Contributions summary:Ted's contributions primarily focused on configuring and maintaining the continuous integration and continuous deployment (CI/CD) infrastructure. They modified shell scripts (.sh) for setting up the build environment on different operating systems, particularly Linux and Windows. They also worked on scripts to upload binaries to Bintray and implemented solutions for issues with the build process.
coin-or
coin-or/CHiPPS-BiCePS
Oct 2006 - Jan 2022
This is the Branch, Constrain, and Price Software (BiCePS), a layer of the COIN-OR High Performance Parallel Search framework supporting the implementation of relaxation-based optimization algorithms.
Contributions:10 releases, 410 commits, 7 PRs in 15 years 5 months
coin-or
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