Fullstack Engineer

Job Description : Fullstack Engineer

Location : Onsite San Francisco, CA (6 days / week, ~12 hours / day)

Position Type : Full-Time (Permanent)

Work Policy : Onsite (relocation dollars available only for exceptional candidates)

Start Timeline : ASAP

About

This fast-scaling AI startup is automating enterprise customer support with elite accuracy and scalability. Their AI agents already resolve over 1 million support tickets monthly for a single customer and are trusted by top brands across industries including food delivery and crypto. Recently funded with a large Series A and backed by leading investors, the team is on track to power the next trillion voice interactions.

Why join

• Momentum : Multi-year contracts and rapid adoption across multiple industries
• Ownership : Influence technical direction while working on cutting-edge ML projects
• Growth : Collaborate with top-tier engineers and founders on transformative AI systems

Compensation

Base Salary : $150,000 - $300,000 (average hires ~$160K -$170K base; equity potential pushes total comp toward $300K)

Equity : Offered

Notes : Relocation available for exceptional candidates; on-site interview travel at candidate's expense

Tech environment

Backend : Python (Django)

Frontend : Next.js, React, ShadCN

Cloud / Infra : AWS, Google Cloud, Kubernetes, Docker

Focus : LLM-based product development, scalable architecture, 01 product builds

Role summary

As a Fullstack Engineer, you will build and scale LLM-powered products from scratch, owning significant product lines and technical decisions. You'll work directly with founders and a small, high-caliber team to ship at speed in a high-intensity environment. The role requires full on-site commitment in San Francisco, 6 days per week, ~12 hours per day during core build phases.

Responsibilities

Rapidly contribute to and eventually own core product lines

Build and deploy LLM-based applications end-to-end

Design scalable, reliable, and secure systems for high-volume use cases

Collaborate with founders to translate product vision into launches

Write high-quality, maintainable code across backend and frontend systems

Must-have qualifications

Current or past founding engineer, founder, or early employee at a successful, fast-growing startup (YC-backed or multi-round funded preferred)

Hands-on experience building and deploying LLM-based products from scratch

Proven 01 product development and scaling experience with exceptional code quality

Degree from a top 25 US university or IIT, or exceptional work experience in lieu of degree

Strong expertise in Python (Django)

Proficiency in Next.js, React, and ShadCN

Familiarity with AWS or Google Cloud (Kubernetes / Docker a plus)

Passionate, entrepreneurial mindset with grit to work long hours in a high-growth environment

2-4 years of hands-on engineering experience

Willingness and ability to work onsite in San Francisco 6 days a week, ~12 hours a day

Preferred qualifications

AI startup experience

Strong JavaScript skills alongside Python

Unique side projects or ML experiments (GitHub link strongly encouraged)

Required Skills :

Adoption

Next.JS

Scalability

Ownership

Salary

React

Customer Support

Scratch

Compensation

Django

AWS

Product Development

Travel

Architecture

Kubernetes

Github

Docker

Design

Engineering

JavaScript

Python

Salary Package :

$ 150,000.00 - 300,000.00 (US Dollar)