Senior Software Engineer ($120K - $180K + Equity) at YC-backed AI accounting startup

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Senior Software Engineer Salary $120K - $180K + Equity Company Description Y Combinator-backed AI-native accounting startup funded by Scrum Ventures and Soma Capital Job Description Join an early-stage team in San Francisco to architect AI-native workflows that automate bookkeeping and financial reporting. As a senior full-stack engineer, you will shape both the technical foundation and company culture, building data-intensive systems from scratch to modernize the financial back-office for startups and private market investors. Location San Francisco, USA Why this role is remarkable Work at the intersection of LLMs and fintech, building a product that does for the financial back-office what AWS did for cloud computing. Join a high-velocity YC W23 cohort startup backed by top-tier firms including Scrum Ventures, Beat Ventures, and Soma Capital. High-impact in-person culture in San Francisco's Financial District with significant equity and twice-yearly off-sites in SF and NYC. What You Will Do Architect and develop full-stack software solutions leveraging the OpenAI API and vector databases to automate complex finance processes. Build and manage scalable technical infrastructure including databases, servers, and APIs to support data-intensive distributed systems. Lead and mentor a growing team of engineers and data scientists while collaborating directly with founders on the product roadmap. The ideal candidate 3+ years of experience building web applications using TypeScript, React.js, and backend frameworks like Node.js, Express, or NestJS. Proven track record with relational databases such as PostgreSQL or MySQL and experience building data-intensive, distributed architectures. Strong autonomous operator with a passion for early-stage startups; previous founder experience or LLM application development is highly preferred. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. How does this work? Jack's an AI agent for job searching and career coaching. He works for you. Jill is the AI recruiter working for the company. She recruits from Jack's network. If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.