Senior Software Engineer

FuseAI; San Francisco (CA); Remote; USD 90,000 - 150,000; Full time

Job summary

Join a pioneering AI startup as a Senior Full Stack Engineer and work alongside visionary founders in a remote-first environment. This role offers the chance to shape the future of AI-powered sales automation while developing cutting-edge software. With a focus on rapid iteration and engineering excellence, you will architect and maintain high-performance applications using modern technologies like React, Node.js, and AWS. Be part of a high-impact team that values mentorship and innovation, and enjoy competitive compensation, including stock options. If you're ready to push boundaries and make a significant impact, we want to hear from you!

Benefits

Stock Options

Competitive Compensation

Remote Work Flexibility

Mentorship from Technical Leaders

Qualifications

• 3+ years of experience in full-stack development with React and Node.js.
• Experience with microservices architecture and Chrome extensions.

Responsibilities

• Architect, develop, test, and maintain end-to-end features across our stack.
• Optimize system performance and scalability in a microservices architecture.

Skills

Full Stack Development

React

Node.js

MongoDB

AWS

Microservices Architecture

Chrome Extensions

AI-driven Automation

Langchain

Sales Tools

Job description

The Role

We’re looking for a Senior Full Stack Engineer to join our fast-paced, high-impact engineering team. You will work directly with our co-founder and CTO, an AI startup veteran with a successful exit, a decade of ML experience, and a Forbes 30 Under 30 recognition. As a core team member, you’ll have the opportunity to shape the future of AI-powered sales automation while building world-class software at breakneck speed.

What You’ll Do

1. Architect, develop, test, and maintain end-to-end features across our stack (React, Node.js, MongoDB, AWS, microservices, and Chrome extensions).
2. Collaborate closely with the CTO and engineering team to build and ship features at the speed of light.
3. Design and implement scalable, high-performance AI-driven applications.
4. Optimize system performance, reliability, and scalability in a microservices architecture.
5. Experiment with AI agent architectures (bonus points for Langchain experience).
6. Contribute to a culture of rapid iteration, continuous learning, and engineering excellence.

What We’re Looking For

• 3+ years of experience in full-stack development, ideally with experience in React, Node.js, MongoDB, and AWS.
• Experience working with microservices architecture and Chrome extensions.
• Ability to thrive in an ultra-fast-paced startup environment where we ship daily.
• Passion for AI-driven automation and interest in Langchain or agent architectures is a big plus.
• Experience working with sales tools or GTM automation is a bonus.
• High agency with a bias for action and ownership.
• Strong communication skills with proficiency in English.

Why Join Us?

• Work directly with world-class founders and receive mentorship from elite technical leaders.
• Be a core part of building something game-changing with extreme impact.
• Remote-first environment—work from anywhere with WiFi while collaborating with an all-star team.
• Y Combinator-backed company with strong venture backing, high growth, and massive market potential.
• Competitive compensation, including stock options and cash, to ensure you have skin in the game.

This is not an average 9-to-5 job—this is a starship. If you’re ready to push boundaries, move fast, and build the future of AI-powered sales, we’d love to hear from you!