Full Stack Engineer -AI/LLM Products
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Full Stack Engineer (Founding Engineer #1)
📍 Location: San Francisco, CA (Onsite)
🇺🇸 Work Authorization: US Citizen Only
💼 Experience: 3+ Years
🕐 Employment Type: Full-Time
About the Role
We are looking for a highly driven Full Stack Engineer to join as Engineer #1 at an exciting early-stage startup in San Francisco. This is a unique opportunity to work directly with founders and play a key role in building an AI-powered platform that enables non-coders to create applications seamlessly.
You will be at the forefront of innovation—designing, building, and scaling full-stack systems while shaping the product, user experience, and technical direction from day one.
🚀 Key Responsibilities
Build and ship end-to-end full-stack features (frontend + backend)
Develop core platform components such as storage, payments, authentication
Work closely with users to understand needs and improve AI & UX (10–20% user interaction)
Enhance AI runtime systems and improve reliability for edge cases
Perform prompt engineering & evaluations to improve AI output quality
Design and scale infrastructure to support millions of applications
Take full ownership of features—from concept to production
🛠️ Required Skills & Experience
Strong hands-on experience with:
React
TypeScript
Node.js
Proven ability to ship production-ready features end-to-end
Minimum 3+ years of full-stack development experience
Strong understanding of product design & user experience
Ability to work independently with high ownership
Fast-paced execution with attention to quality
⭐ Ideal Candidate Profile
Founding engineer mindset – excited to build from scratch
Product-focused with strong UX intuition
Comfortable working in high ambiguity & fast-changing environments
Experience in one of the following areas:
🔹 Backend / Infrastructure Focus:
Strong experience with AWS
Building scalable, reliable backend systems
Knowledge of infrastructure & system design
🔹 Frontend Focus:
Experience with modern frontend frameworks
Strong UI/UX skills (design-engineer mindset)
Experience building complex interfaces (e.g., editors, frameworks)
🌟 Why Join?
Be Engineer #1 and shape the product from the ground up
Work directly with founders in a high-impact role
Opportunity to grow into a Tech Lead position
Build cutting-edge AI-driven products
Fast-moving startup environment with massive growth potential
📩 Interested?
If you're passionate about building innovative products, love solving complex problems, and want to make a real impact—apply now or reach out directly.