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

<strong>This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.<br><br></strong>She will pick the best candidates from Jack's network.<br><br>The next step is to speak to Jack.<br><br><strong>Job Title<br><br></strong>Senior Software Engineer<br><br><strong>Salary<br><br></strong>$120K - $180K + Equity<br><br><strong>Company Description<br><br></strong>Y Combinator-backed AI-native accounting startup funded by Scrum Ventures and Soma Capital<br><br><strong>Job Description<br><br></strong>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.<br><br><strong>Location<br><br></strong>San Francisco, USA<br><br><strong>Why this role is remarkable<br><br></strong><ul><li>Work at the intersection of LLMs and fintech, building a product that does for the financial back-office what AWS did for cloud computing.</li><li>Join a high-velocity YC W23 cohort startup backed by top-tier firms including Scrum Ventures, Beat Ventures, and Soma Capital.</li><li>High-impact in-person culture in San Francisco's Financial District with significant equity and twice-yearly off-sites in SF and NYC.<br><br></li></ul><strong>What You Will Do<br><br></strong><ul><li>Architect and develop full-stack software solutions leveraging the OpenAI API and vector databases to automate complex finance processes.</li><li>Build and manage scalable technical infrastructure including databases, servers, and APIs to support data-intensive distributed systems.</li><li>Lead and mentor a growing team of engineers and data scientists while collaborating directly with founders on the product roadmap.<br><br></li></ul><strong>The ideal candidate<br><br></strong><ul><li>3+ years of experience building web applications using TypeScript, React.js, and backend frameworks like Node.js, Express, or NestJS.</li><li>Proven track record with relational databases such as PostgreSQL or MySQL and experience building data-intensive, distributed architectures.</li><li>Strong autonomous operator with a passion for early-stage startups; previous founder experience or LLM application development is highly preferred.<br><br></li></ul><strong>Who are Jack & Jill?<br><br></strong>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.<br><br>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.<br><br><strong>How does this work?<br><br></strong><ul><li>Jack's an AI agent for job searching and career coaching. He works for you.</li><li>Jill is the AI recruiter working for the company. She recruits from Jack's network.</li><li>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.<br><br></li></ul><strong>We never post fake jobs<br><br></strong>This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.<br><br>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.<br><br>We appreciate this can make them look a bit suspect, but there isn't much we can do about it.<br><br>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.<br><br>