Josh Zarrabi is an infrastructure engineer with 11 years of software experience and 6+ years focused on backend and infrastructure development, currently based in New York. He has led small engineering teams delivering public-health critical systems like the Health Equity Tracker, shepherding technical work, public communication, and CDC collaboration while mentoring engineers and hiring on a tight budget. Josh combines hands-on DevOps and backend skills—contributing to notable open-source projects such as Concourse and BOSH bootloader—with experience modernizing CI/CD workflows and buildpacks at VMware and Pivotal. He’s comfortable across the stack, from TypeScript frontends and Python Airflow pipelines to Terraform, Go, and test automation for production infrastructure. His open-source work shows a penchant for reliable deployment and test automation (SSH/director setup, key rotation, non-blocking builds), reflecting a pragmatic focus on operability and reproducible releases. Outside core engineering, he’s presented publicly about his projects and even earned recognition for undergraduate research integrating ML and transportation data.
11 years of coding experience
8 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at University of California, Berkeley
Command line utility for standing up a BOSH director on an IAAS of your choice.
Role in this project:
DevOps Engineer
Contributions:32 commits, 14 PRs, 36 pushes in 1 year 1 month
Contributions summary:Josh primarily contributed to the project by implementing and testing infrastructure-related functionality. They introduced and modified acceptance tests focused on SSH connections and director setup, including key rotation. The changes also involved updating and refactoring various tests and scripts within the acceptance test suite, indicating a strong focus on automating and verifying the deployment process. The user's commits further included adjustments to the test environment configurations, and ensuring smooth operation of BOSH director.
Concourse is a container-based continuous thing-doer written in Go.
Role in this project:
Back-end Developer
Contributions:217 commits, 4 PRs, 56 pushes in 2 years 11 months
Contributions summary:Josh primarily contributed to the Concourse container-based automation system, making changes related to build preparation and the login functionality. The user made updates to the build and database files related to preparing non-blocking builds. They also added a login page with team selection implemented in Elm, indicating a focus on frontend interaction and backend integration.
golangcontainersdoergocdelm
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Josh Zarrabi - Infrastructure Engineer at PicnicHealth