SF Ruby News
February 2026
The Crazy Unlock
I think people are sleeping a bit on how much Ruby on Rails + Claude Code is a crazy unlock — I mean Rails was designed for people who love syntactic sugar, and LLMs are sugar fiends.
Garry Tan
President of Y Combinator · Feb 14, 2026
Sixfold Closes $30M Series B
Jan 30, 2026
AI underwriting insurtech hits $51.5M total, 1M+ submissions processed.
Read moreSimple AI Raises $14M Seed Round
Feb 2026
YC-backed voice AI startup, $14M led by First Harmonic.
Read moreRubyLLM 1.12: The Agents DSL
Feb 14, 2026
First-class agent DSL for Ruby developers.
Read moreJoin the Next SF Ruby Meetup
Connect with founders and engineers building with Ruby. Learn, share, and make friends for life!
New Ruby Jobs
22 open positions at Ruby startups and companies.
Staff Software Engineer, Backend
Whop · Bay Area, CA & Brooklyn, NY
Software Engineer, Ruby on Rails
Persona · San Francisco
Senior Ruby on Rails + AI Engineer
Cactus · San Mateo, CA (In-person)
Staff Software Engineer
Gusto · San Francisco, CA; Denver, CO;
Software Engineer II (Enterprise)
Omada · Remote (US Only)
Engineering Manager
Thatch · Remote (US)
New Meetup Videos
Conference keynotes, meetup presentations, and startup demos.
Our Hosts
These companies open their doors to the Ruby community every month.
Every YC batch runs through Rails — applications, Bookface, office hours, all of it
2M lines of Rails. 1,000+ engineers. Deploys 20x/day. Upgrades Rails every week
Massive Ruby on Rails monolith powering millions of financial transactions
91M+ gem downloads. First-class Rails tracing, profiling, and error tracking out of the box
2M-line Rails monolith since 2007. Powers 10M+ devices across 3.5M networks
Born in 2008 as a Rails-only APM. Ruby literally built the observability industry
Rails monolith powers product decisions at Microsoft, Avast, and 6,000+ companies
Ruby monolith on Sinatra + ActiveRecord handles the majority of web requests. DB scaled 100x, kept the monolith
2M-line Rails majestic monolith. 150K req/sec at peak. 100K+ tests per PR in 6 minutes
$171B in assets managed through a Rails modular monolith. Moved microservices back in
The database company runs on Rails — dashboard, API, and control plane all built with it
Rails app serves 47% of US foster children. 550+ agencies across 36 states
Rails powers identity verification across 200+ countries. High-stakes, regulated, mission-critical
Rails since 2008. 270M users, 55M research papers. 18 years and still shipping
Our Startups
25 startups are part of the SF Ruby community.
AI-native browser tool for building and deploying full-stack web apps with zero code. Launched 2024; $40M ARR in 5 months.
Online healthcare training for entry-level roles in four months. Tech-driven, accessible to those with a high school diploma.
API for issuing NFC keys for Apple and Google Wallet for startups, access control integrators, and large enterprises.
Suppli provides digital payments and accounts receivable (AR) software solutions for construction materials supply and distribution sector.
Accelerating innovation in healthcare with our universal API, powered by the Synchronizer. Used by tens of thousands of practices in North America, and hundreds of startups building with us. We're a healthtech unicorn!
Simple AI makes it easy to build and deploy enterprise-grade phone agents in days, not weeks. Iconic businesses use us for sales calls, customer support, leads qualification, and more. YC-backed.
Insurtech startup that utilizes generative AI to optimize insurance underwriting processes.
AI-powered business assistant that answers, qualifies, and follows up with every lead around the clock—so you never miss a customer, call, or opportunity.
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SF Ruby Conference 2025 Sponsors
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