Mark Walker
Senior Group Leader, Computational BIology
Cambridge, Massachusetts, United States
Summary
🤩
Rockstar🎓
Top SchoolMark Walker is a senior computational biology leader with a decade of experience building scalable, production-grade genomic analysis pipelines at the Broad Institute and as an affiliate at Massachusetts General Hospital. He leads development and delivery of GATK-SV, overseeing structural variant call set generation for large WGS projects such as gnomAD and All of Us, and combines hands-on backend engineering with test automation to keep pipelines robust. His work spans cloud-native pipelines, ML models for genomic analyses, and pathogen discovery tools (GATK PathSeq) developed in collaboration with leading cancer genomics labs. Trained as a PhD biomedical engineer and a chemical engineer by undergraduate training, he uniquely blends deep quantitative rigor with software engineering discipline to move research-grade methods into reliable, large-scale production.
11 years of coding experience
Doctor of Philosophy (Ph.D.), Biomedical Engineering, Doctor of Philosophy (Ph.D.), Biomedical Engineering at The Johns Hopkins University School of MedicineBachelor’s Degree, Chemical Engineering, Bachelor’s Degree, Chemical Engineering at Tufts University
Github Skills (12)
testing10
bioinformatics10
javas10
gatk10
java10
genomes9
data-structure9
genomics9
algorithm9
data-structures9
genome9
algorithms9
Programming languages (8)
Github contributions (5)
broadinstitute/gatk
Nov 2016 - Jan 2023
Official code repository for GATK versions 4 and up
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:221 reviews, 214 commits, 119 PRs in 6 years 3 months
Contributions summary:Mark implemented new features related to structural variation (SV) analysis in the GATK tool, specifically focusing on Kmer processing and masking. They added functionality to create SVKmers, and mask and space them. The contributions include unit tests for the new features, demonstrating a focus on code quality and functionality. The user also contributed to the implementation of several unit tests related to various functionalities such as BWA filter, host alignment read filter, and test the read pairing.
gatkgenomicssparksciencedna
JazzEd-EdTech/gatk
Dec 2017 - Nov 2020
Official code repository for GATK versions 4 and up
Contributions:85 commits in 2 years 10 months
gatk
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