Software Engineer

About Simple Simple AI builds voice AI agents that help businesses grow revenue. Our customers include Omaha Steaks, DoorDash, and Renewal by Andersen. Our agents qualify leads, book appointments, take orders, and upsell, turning phone conversations into revenue opportunities. 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 and Zach) 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’re excited to build, take ownership, and help shape an early-stage AI company, we’d 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.