Jeff Gentry
Distinguished Bioinformatics Engineer
Somerville, Massachusetts, United States
Summary
🤩
Rockstar🎓
Top SchoolJeff Gentry is a Distinguished Bioinformatics Engineer with roughly two decades at the intersection of software engineering, bioinformatics, and data science, now based in Somerville, MA. He has led and built large-scale biomedical workflow systems—most notably driving development of Cromwell and the Workflow Description Language (WDL)—and has deep hands-on expertise in Scala, Java, cloud deployments (AWS/GCP), and bioinformatics tooling like Picard. His career spans research hospitals to major institutes and industry, including leadership roles at Broad Institute and Foundation Medicine and current engineering leadership at Fulcrum Genomics. Jeff blends product-minded engineering with standards work and community collaboration (WDL/CWL/GA4GH), enabling reproducible, production-grade genomics pipelines. Comfortable as an individual contributor or manager, he’s known for shipping durable infrastructure and for quietly recharging between roles to explore new technical directions.
16 years of coding experience
25 years of employment as a software developer
BS Computer Science, BS Computer Science at Rensselaer Polytechnic InstituteIndependent coursework for personal enrichment, Independent coursework for personal enrichment at Harvard Extension SchoolMS Computer Science, MS Computer Science at Boston University
Github Skills (25)
parser10
r10
work-flow10
workflow-engine10
java10
twitter-api10
scala10
javas10
workflow-automation10
parsing10
parse10
bioinformatics10
command-line-tool10
wdl10
oauth10
Programming languages (16)
Github contributions (5)
geoffjentry/twitteR
Jul 2010 - Sep 2016
R based twitter client
Role in this project:
Back-end Developer
Back-end DeveloperContributions:199 commits, 14 PRs, 18 pushes in 6 years 2 months
Contributions summary:Jeff primarily worked on the development of a Twitter client for R, as indicated by the repository description. Their contributions included cleaning up and modifying the project's source code. The changes involved converting date formats, and the implementation of API calls, and modifications to handle features such as retweets and user timelines, along with documentation updates. They also worked on incorporating HTTR for OAuth-based authentication, improving the overall client functionality.
twitter-client
broadinstitute/cromwell
Apr 2015 - Aug 2019
Scientific workflow engine designed for simplicity & scalability. Trivially transition between one off use cases to massive scale production environments
Role in this project:Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:2 releases, 9 reviews, 439 commits in 4 years 4 months
Contributions summary:Jeff primarily contributed to the development of back-end components, including the WDL parser, a workflow manager system, and metadata handling. They also made improvements to the testing framework and setup process, as well as the build and deployment scripts. Code changes demonstrate knowledge of Java, Scala and integration within the AWS and GCP cloud environments.
scientific-workflowworkflow-executionworkflowcloudhpc
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.