Jesse Brennan
Founding Engineer at Adapt API
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJesse Brennan is a founding engineer based in San Francisco with 11 years of experience building production-ready web and mobile platforms, tooling, and backend systems. He has led engineering at early-stage startups, shipping offline-capable mobile apps, e-signature and cost-tracking features, and prioritizing rapid customer-driven iteration. Previously he contributed to open-source genomics infrastructure at the UC Santa Cruz Genomics Institute, becoming a core developer on Azul and a maintainer of the Toil workflow engine used in large-scale bioinformatics projects. Comfortable across backend, DevOps, and product-facing work, Jesse blends practical systems engineering with customer empathy to solve the right problems. Outside software he’s equally likely to be building something musical or hands-on in the real world, reflecting a maker mindset that surfaces in both code and product.
11 years of coding experience
9 years of employment as a software developer
University of California Santa Cruz
English, Spanish, Portuguese
Github Skills (9)
docker10
aws10
python10
dockers10
documentation10
terraform9
cicd9
terraformer9
test-automation8
Programming languages (15)
Github contributions (5)
DataBiosphere/toil
Nov 2016 - Jul 2018
A WDL, CWL and Python API supporting easy-to-use workflow engine. It is scalable, efficient and cross-platform (Linux/macOS).
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:271 commits, 40 PRs, 185 pushes in 1 year 8 months
Contributions summary:Jesse's contributions primarily focused on improving the Toil workflow engine's documentation, build process, and infrastructure support. The user added detailed installation instructions for Docker and included Quay account setup information for testing. They also improved Python 3 support, fixed argument parsing, and made modifications to facilitate tagging EC2 instances with user-specified tags. Additionally, they addressed file size retrieval and added tests for the results filename.
linuxmacospythonwdlworkflow-engine
DataBiosphere/newt-transformer
May 2018 - Nov 2018
Amphibious new data transformer to prepare various sources for CGP DSS Data Loader
Contributions:16 releases, 15 PRs, 43 pushes in 5 months
dataloader
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