Senior Software Engineer

Senior Software Engineer Location: New York, NY (on-site, 5 days a week)Compensation: $200,000–$275,000 + equityEmployment: Full-timeDepartment: EngineeringAbout RevinAt Revin, we're bringing AI to the built world. Millions of operators acrosshome services, construction, and remodeling have been overlooked by the lastwave of technology. We're building the system of intelligence that lets themautomate and scale revenue.Today, over $2.3B in revenue runs on Revin, making us the #1 AI partner forenterprise operators in this market. Our customers include Sears Home Services($800M), Astara Capital ($700M), Del Air ($150M), Long Home Remodeling($150M), ImproveIt Remodeling ($100M), Sage Home ($80M), and more.We've raised $10M from Stellation Capital, 1Sharpe, Gokul Rajaram, RussHeddleston, Michael Werner, Tandem, Max Branzburg, and Marc Bhargava.About the RoleWe're hiring an Senior Software Engineer to build the production systems behind ourAI agents — the agents that handle SMS, voice, and email conversations onbehalf of $100M+ home-services operators. When our agent makes a mistake —books outside hours, dispatches to the wrong zip code, promises a service thebusiness doesn't offer — it costs our customers real money. Your job is tobuild the systems that prevent that.This is a high-ownership role. You'll work end-to-end across a Python/FastAPIbackend, a Next.js/TypeScript dashboard, and the LangGraph workflows thatdrive agent behavior. You'll partner directly with product, design, andleadership, ship in production, and influence the direction of the platform.What You Will Do- Build and evolve LangGraph workflows that handle SMS and voice conversationsfor enterprise operators- Ship features end-to-end across a Python/FastAPI backend and aNext.js/TypeScript dashboard- Work in a multi-tenant Supabase/Postgres environment where every query isaccount-scoped (RLS, JWT-based access)- Build the eval frameworks that catch agent regressions before they reachcustomers — we treat eval quality as a first-class engineering discipline- Integrate with messy real-world CRMs (Salesforce, ServiceTitan,LeadPerfection, AccuLynx) where the data is never clean- Partner with the voice team on real-time agent behavior (LiveKit + OpenAI Realtime)- Optimize the omnichannel experience across SMS, voice, and emailWho You Are- 4–8 years of full-stack experience shipping production software at astartup, high-velocity SaaS, or AI-driven company- Production LLM experience — you've shipped LLM-powered features that realcustomers depend on, not just prototypes or internal tools- Fluent in Python (FastAPI) and TypeScript (Next.js, React Query)- Comfortable working in multi-tenant production systems — RLS, account-scopedqueries, JWT-based access- Experience debugging APIs, tracing distributed issues, and working withevent-driven systems and unstructured data pipelines- A continuous learner comfortable operating in ambiguity. You ship, learn,and adapt.- Customer-obsessed — you want to be close to the people using what you buildBonus:- LangGraph, LangChain, or other agent frameworks in production- Real-time voice/audio work (LiveKit, Daily.co, Twilio Voice)- Observability tooling for LLM systems (Langfuse, LangSmith, Helicone)Don't Apply If- You wait for instructions instead of taking initiative- You want a predictable, low-ownership role. We move fast, ship inproduction, and own outcomes end-to-end. If you're optimizing forpredictability, this won't be a fit.- You're not excited about applying AI to the built world. There's no playbookhere. If you want a well-trodden path, this isn't the role.Compensation and Benefits- Basesalary: $200,000–$275,000- Equity: Competitive equity package- Full-time, on-site in our NYC office, 5 days a week- Significant upside through early ownership and career growthBenefits:- Unlimited PTO- $0 cost medical- 401k matching- Lunch and dinner in office- Gym membership stipend- Clear Travel Pass- Tech equipment of your choice- Mentorship pairing with a Revin advisor/investor- Relocation assistance