Fullstack Engineer (Backend, AI)

We’re uiAgent. We just raised our seed round and we’re building a world-class team to reinvent accounting through AI Agents. With real revenue, rapid growth, and a massive market ahead, we’re now looking for an exceptional Fullstack Engineer (Backend, AI) to join us —owning key pieces of the product and setting the culture for years to come.Why this role?You’re not just joining as another dev. As a Fullstack Engineer (Backend, AI), you’ll be at the core of what we build, ship, and scale. You’ll work side-by-side with founders and a small, elite team on real product and technical decisions. You’ll see your work go live fast and make a real impact for our customers—and for the business.What you’ll do:Architect, design, and build mission-critical features end-to-end (front and back)Ship, own, and iterate on production code (Python, Node.js, React)Integrate state-of-the-art AI/ML models (think LangChain, open-source LLMs, etc.)Work closely with founder on technical strategy, product roadmap, and scaling decisionsShape and mentor the engineering culture—code quality, reviews, processMove fast: deploy, test, get feedback, repeatWho you are:Our stack is Python, React, Node.js, Postgres, and AWSStrong communication skills with a variety of stakeholdersDeep understanding of system design, architecture, and microservicesExperience shipping zero-to-one products and iterating rapidlyPassion for clean, scalable code and a bias for actionHungry to learn and experiment with new tools (especially in AI/ML)Entrepreneurial mindset: you take ownership, push through ambiguity, and love building with othersHow we work:We’re founder-led and flat—your ideas and code will directly shape the productWe move fast, joke often, and genuinely enjoy building togetherNo side projects, no distractions—full focus on building uiAgentLocated in ManhattanNo remote work / only on-siteWhat you get:Top-tier salary ($100k–$200k base) + significant early equityDirect access to founders and major product decisionsOpportunity to build and lead as we scale the engineering teamReady to do the best work of your career?If you’re hungry to build, ready to own, and want to help shape a world-class company from the ground up, we want to meet you.Apply now. Let’s make history together.