---
title: 'Software Engineer at Simple AI'
canonical: 'https://feeny.ai/job/software-engineer-simple-ai-san-francisco-m4h9ddqadfrt'
type: 'job'
last_seen: '2026-09-10'
---

# Software Engineer at Simple AI

- **Company:** Simple AI
- **Location:** San Francisco, CA
- **Compensation:** $130k–$280k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-07-07
- **Last confirmed live:** 2026-09-10
- **Apply:** https://jobs.ashbyhq.com/simple-ai/9a5f5694-e066-4087-9a13-b1a62d8d8025/application

**Skills:** Prompt engineering, AI/LLM-based platforms, TypeScript, React, Python, Ruby on Rails, PostgreSQL, AWS

> Founding software engineer role at Simple AI building voice AI agents for enterprise clients. Requires 4+ years of experience to handle customer demand and build future systems in a San Francisco office.

## 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.

## About Simple AI

## Company Overview
- **One-liner**: Simple AI builds voice AI agents that automate inbound and outbound B2C phone calls for sales, support, and customer engagement.
- **Entity Type**: Private (Seed stage)
- **Headquarters**: San Francisco, California, USA
- **Founded**: 2024
- **Founders**: Catheryn Li (CEO) and Zach Kamran (CTO)

## Core Business
- **Primary industry**: Artificial Intelligence / Voice AI Agents / Contact Center Automation
- **Target customers**: B2B — consumer brands and businesses of all sizes that handle high volumes of inbound and outbound B2C phone calls (e.g., retail, self-storage, home insurance, debt collection).
- **Mission or purpose statement**: To turn every customer conversation into a revenue opportunity by building AI voice agents that perform like a company's best human sales rep.

## Products & Services
- **Simple AI Voice Agent Platform**: A suite of AI-powered voice agents that automate inbound and outbound phone calls for sales, customer support, debt collection, data collection, and customer surveys. The platform ingests a company's full product catalog (SKUs, metadata, pricing) and uses real-time customer data to personalize interactions, place orders, and upsell. It supports multi-language (40+ languages), human handoff, and integrates with existing tech stacks. The system maintains sub-850ms latency for natural conversation flow. [usesimple.ai](https://www.usesimple.ai/)
- **Simple AI Analytics & Insights**: Every call is transcribed and analyzed for trends, summaries, and customer insights. Includes quality monitoring, trend/topic detection, and a queryable data layer. [usesimple.ai](https://www.usesimple.ai/)
- **Multi-Channel Support**: The same AI agent works across voice, SMS, chat (web), and email, maintaining context and personalization across channels. [usesimple.ai](https://www.usesimple.ai/)

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed.
- **Key Metric**: Raised **$14M** in a Seed round (announced February 10, 2026). [businesswire.com](https://www.businesswire.com/news/home/20260210526354/en/Simple-AI-Announces-%2414M-from-First-Harmonic-and-Y-Combinator-to-Build-Voice-AI-Agents-That-Sell)
- **Notable Investors/Partners**: First Harmonic (lead), Y Combinator, Massive Tech Ventures, True Ventures, Conviction Embed, HNVR. [businesswire.com](https://www.businesswire.com/news/home/20260210526354/en/Simple-AI-Announces-%2414M-from-First-Harmonic-and-Y-Combinator-to-Build-Voice-AI-Agents-That-Sell)
- **Growth Signals**: Raised $14M seed round in Feb 2026; Y Combinator Summer 2024 batch; claims AI agents outperform trained live reps by 30% on conversion and upsell; team size of 11 (as of YC profile); actively hiring across engineering, sales, and marketing roles. [ycombinator.com](https://www.ycombinator.com/companies/simple-ai)

## Competitive Advantages
- **Sub-850ms latency**: Full-stack voice AI pipeline (VAD, transcription, inference, TTS) optimized for natural, real-time conversation. [businesswire.com](https://www.businesswire.com/news/home/20260210526354/en/Simple-AI-Announces-%2414M-from-First-Harmonic-and-Y-Combinator-to-Build-Voice-AI-Agents-That-Sell)
- **Deep product knowledge**: Agents ingest the full product catalog (SKUs, pricing, metadata) and customer history, enabling personalized recommendations and upsells that outperform human reps by 30%. [businesswire.com](https://www.businesswire.com/news/home/20260210526354/en/Simple-AI-Announces-%2414M-from-First-Harmonic-and-Y-Combinator-to-Build-Voice-AI-Agents-That-Sell)
- **Enterprise-grade compliance**: SOC 2 Type II certified and HIPAA compliant. [usesimple.ai](https://www.usesimple.ai/)
- **Multi-channel orchestration**: A single AI agent works across voice, SMS, chat, and email with full context retention. [usesimple.ai](https://www.usesimple.ai/)
- **Founding team from Y Combinator**: Founders previously led software teams at YC, giving them deep insight into startup scaling and AI product development. [ycombinator.com](https://www.ycombinator.com/companies/simple-ai)

## Strategic Focus
- **Product expansion**: Continuing to invest in the voice agent platform, custom generative AI models, and analytics/insights capabilities. [businesswire.com](https://www.businesswire.com/news/home/20260210526354/en/Simple-AI-Announces-%2414M-from-First-Harmonic-and-Y-Combinator-to-Build-Voice-AI-Agents-That-Sell)
- **Go-to-market**: Scaling sales and marketing to acquire more consumer brands across verticals (retail, insurance, self-storage, etc.).
- **Talent acquisition**: Actively hiring across engineering (Founding Software Engineer, Forward Deployed Engineer, New Grad, Intern), product design, sales (AE, SDR), and growth marketing. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/simple-ai)

## Why Work Here
- **Founding team pedigree**: Founders are Y Combinator alumni (Summer 2024 batch) with deep experience in software and AI. CEO Catheryn Li led the software team at YC for 4 years; CTO Zach Kamran worked on Bookface at YC. [ycombinator.com](https://www.ycombinator.com/companies/simple-ai)
- **Early-stage impact**: With a team of ~11 and a fresh $14M seed round, new hires will have outsized ownership and influence over product direction and company culture.
- **Cutting-edge AI work**: Building state-of-the-art voice AI with sub-850ms latency, custom generative models, and real-time personalization — a technically challenging and high-impact domain.
- **Culture & perks**: On-site onboarding and dedicated launch team for customers; hands-on partnership approach. Roles are full-time in San Francisco. Open positions include Founding Software Engineer, Forward Deployed Engineer, New Grad SWE, Intern, Founding Product Designer, Account Executive, SDR, and Growth Marketing. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/simple-ai)
- **Work policy**: All listed roles are full-time in San Francisco (in-office/hybrid expected).

## Sources
1. [usesimple.ai](https://www.usesimple.ai/)
2. [usesimple.ai/careers](https://www.usesimple.ai/careers)
3. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/simple-ai)
4. [ycombinator.com](https://www.ycombinator.com/companies/simple-ai)
5. [businesswire.com](https://www.businesswire.com/news/home/20260210526354/en/Simple-AI-Announces-%2414M-from-First-Harmonic-and-Y-Combinator-to-Build-Voice-AI-Agents-That-Sell)

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