Dan Hansen
Senior Software Engineer, Reliability at Recidiviz
Oakland, California, United States
Summary
👤
Senior🎓
Top SchoolDan Hansen is a Senior Software Engineer with 15 years’ experience building reliable, user-focused web systems from Oakland, CA. A Ruby and JavaScript specialist, he has led engineering and frontend efforts at startups and mission-driven orgs like BackerKit, TINT, Comfy, and Recidiviz, driving product launches, UI overhauls, and reliability improvements. He excels at translating complex problems into simple, accessible interfaces and has a strong track record implementing CI/CD, scaling multi-tenant Rails/React platforms, and improving test suites and accessibility compliance. Comfortable as both a hands-on developer and a team leader, Dan often shapes engineering practices through pair programming, rigorous code review, and mentoring. A pragmatic self-taught engineer, he combines startup grit—having been BackerKit’s first hire—with deep attention to detail in production reliability.
15 years of coding experience
11 years of employment as a software developer
Self-Taught
Github Skills (152)
google-cloud-platform10
python10
automation10
google-cloud10
orchestration10
streaming10
javascript10
django10
scheduler10
sql10
golang10
batch10
database10
sqlite10
monitor10
Programming languages (10)
Github contributions (5)
Recidiviz/bigquery-emulator
Jan 2024 - Mar 2025
BigQuery emulator server implemented in Go
Contributions:25 releases, 1 review, 42 PRs in 1 year 2 months
Recidiviz/go-zetasqlite
Jan 2024 - Jan 2025
A database driver library that interprets ZetaSQL queries and runs them using SQLite3
Contributions:13 releases, 8 reviews, 80 PRs in 1 year
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