Lead Frontend Developer ($210K - $250K + Equity) at Series B-imminent AI Devtools Startup

Location San Mateo, CA (Monday, Wednesday, Friday in-office) | Must be located in or willing to relocate to the Bay Area | Green card or citizenship required. Company Description Pre-Series B AI engineering intelligence platform, SF Bay Area, 5x growth last year, Fortune 1000 customers. Job Description Join a 50-person team that is reshaping how engineering organizations operate with an AI-native platform that gives engineering leaders visibility and context across their entire software delivery system. The company grew 5x last year and just closed a massive deal with a Fortune 1000 industrial conglomerate, with other Fortune 1000 companies in the pipeline. Its founding team built Einstein at Salesforce, the AI layer that powers Salesforce’s predictive features. As Lead Frontend Developer you will be the primary owner of the frontend direction, working with junior engineers to lead and green‑field thinking. The current frontend codebase needs real ownership and you will be the person who provides it. Why this role is remarkable Own the entire frontend direction of an enterprise SaaS product at a company growing 5× year over year with a Series B imminent, with junior engineers reporting to you and full architectural authority over how the platform is built and what it looks like going forward. Join a founding team that built Einstein at Salesforce and is now laying the foundation for how humans and AI will build software together, at a company that just landed a Fortune 1000 deal and has the pipeline to prove the product is working at enterprise scale. Green‑field thinking is genuinely encouraged here, not just stated as a value; you will shape the product experience working directly alongside designers and PMs in a culture that values ownership over process and moving fast over perfection. What you will do Own the frontend architecture and development of the core SaaS product end‑to‑end using React, Next.js, TypeScript, CSS, Jest, and Cypress, setting technical direction and best practices for a team of junior contract developers while improving performance and accessibility across the platform. Work directly with designers and backend engineers to create a seamless user experience, integrate with open‑source solutions, and make opinionated decisions about how the frontend should evolve as the product scales to larger and more complex enterprise customers. Mentor junior frontend developers, review code contributions from contractors, and use AI coding tools heavily as a core part of your development workflow, bringing full‑stack awareness that lets you debug and integrate across the broader system when needed. The ideal candidate 7 or more years of experience as a frontend developer who has been the de‑facto frontend owner for an enterprise SaaS product, with strong React and TypeScript skills, experience working alongside designers and PMs to shape the product experience, and some backend or full‑stack capability to support debugging and integration in a complex environment. Background at a high‑growth VC‑backed startup or a strong big‑tech company, ideally with experience on developer tools, data products, or similarly complex SaaS interfaces, long tenures that demonstrate genuine commitment and depth rather than frequent job changes, and a CS degree from a solid program. Clear track record of coaching junior engineers and establishing best practices, someone who is opinionated about frontend quality and excited about owning an entire function rather than being one of many contributors, and a heavy user of AI coding tools as part of everyday work. #J-18808-Ljbffr CoffeeSpace