Senior Full-Stack Engineer

Authorium | Full-Stack Engineer (Mid & Senior) | San Francisco, CA | ONSITE (Mon-Thu hybrid) | Full-time | $148k-230k + equity | https://authorium.com We're building the operating system for the digital infrastructure of government. Authorium is a GovTech SaaS platform that unifies the messy, high-stakes workflows (procurement, grants, budgeting) that keep state and local governments running. We replace fragmented docs, spreadsheets and decades-old legacy systems with a unified data layer managing billions in public funds. Customers include California's CDSS, CalPERS, and EDD, plus major agencies in NY, Florida and Washington. We're >40 people, growing 45% YoY, with a clear path to profitability in 2026. Real product-market fit, scale, and impact. We're standing up our SF office as the war room for our hardest problems: modularizing our core domain, designing the next-gen workflow engine, building versioning and approval systems that hold up across dozens of customer configurations. You'd whiteboard, debug, and ship in person alongside a high-caliber team. Stack: Ruby on Rails BE, Hotwire and Next.js FE, enterprise form and document capabilities. We're leveraging AI in our development process: Claude Code for specs, agentic testing, automated reviews. Two roles open: - Full-Stack Engineer (3+ yrs) | $148,750-$201,250 + equity | https://jobs.ashbyhq.com/Authorium/b59ff28c-3e3c-4190-abaa-a... - Senior Full-Stack Engineer (6+ yrs) | $170,000-$230,000 + equity | https://jobs.ashbyhq.com/Authorium/dc83e0dd-9279-4381-9930-f... Both value deep fundamentals (system design, database optimization, clean architecture) over specific syntax. Bonus for Rails, document-heavy systems, or regulated-industry experience (GovTech, FinTech, HealthTech). Benefits: 100% employee coverage, 401(k), flexible PTO, home office + commuter stipend. Apply at the links above (mention Hacker News). I'm Jay, co-founder and xCIO of City of SF. Happy to connect directly if you have questions, just reply here or reach out jay@authorium.com