Software Engineer

Simple AI is a software development firm that made an AI Assistant.

Location: San Francisco
Company size: 2–10
Posted: Today
Via: Yc

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Job listing · Updated 23 OCT 2026

Software Engineer

Simple AI· San FranciscoView company profile

Job title: Software Engineer
Job location: San Francisco
Job listing URL: https://www.ycombinator.com/companies/simple-ai/jobs/HwtDp6V-software-engineer
Job description: # About Simple [Simple AI](http://usesimple.ai) is building state of the art voice AI agents for enterprise. Our realistic agents help iconic businesses like Doordash, xAI, and Omaha Steaks handle all kinds of phone operations, from customer support to order intake to lead qualifications. We are growing revenue like crazy and looking to hire a couple founding software engineers to help us stay afloat of current customer demand and also build out systems for the future. We are very excited about the potential for AI to change the world, and work out of our SF based office. Simple AI raised $14M from world-class investors and operators like Y Combinator, First Harmonic, Massive Tech Ventures, Michael Seibel, Jared Friedman, Alexandr Wang, Matt Van Horn, Suhail Doshi, and Scott Wu. # **The Team** The founders ([Catheryn](https://www.linkedin.com/in/catherynli/) and [Zach](https://www.linkedin.com/in/zach-kamran/)) met while running software teams at YC, where they shipped tons of new products for YC founders, including YC’s co-founder matching site. Cat previously worked at Instagram and Facebook and earned degrees in math and computer science at MIT. Zach previously studied computer science and statistics at U Chicago and led software at PEAK6. We have grown into a strong team of 20+ and are continuing to scale quickly. # **About the Role** We are looking for founding software engineers to help us build the core systems behind Simple AI’s voice agents. You will work across product to make our agents faster, more reliable, and more capable in real production environments. This is a high-ownership engineering role. You will ship customer-facing features, improve latency and reliability, build internal tools, debug complex edge cases, and help us scale the platform as customer demand grows. Engineers here work close to the product and close to customers. You should be excited to move fast, own large parts of the system, and build technology that directly impacts revenue for businesses using Simple. # **What We Offer** - Competitive salary & meaningful equity - Employee-friendly equity terms - An office located in SF - Health, dental & vision insurance - Free lunch & dinner at the office - Late night Ubers - Regular team events & offsites # **What You'll Need** - 4+ years of relevant work experience. - Strong problem-solving skills and enthusiasm for addressing technical challenges. - A customer-first mindset with strong communication skills and interest in product design and prioritization. - Self-motivated and able to work independently. - Passion about learning and keeping up with latest AI advancements. # **Nice To Have** - Previous experience with prompt engineering or working with AI/LLM-based platforms. - Experience as an early-stage startup engineer or founder. - Experience with TypeScript, React, Python, Ruby on Rails, PostgreSQL, AWS. ### If you are excited to shape the visual identity of a fast-growing AI company, we would love to chat. _Please note: At this time, Simple AI is unable to provide employment visa sponsorship for this role. We appreciate your interest and understanding._

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