---
title: 'Infrastructure Engineer at Simple AI'
canonical: 'https://feeny.ai/job/infrastructure-engineer-simple-ai-san-francisco-kaykkqy6znqb'
type: 'job'
last_seen: '2026-10-15'
---

# Infrastructure Engineer at Simple AI

- **Company:** Simple AI
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-11
- **Last confirmed live:** 2026-10-15
- **Apply:** https://jobs.ashbyhq.com/simple-ai/1dbaca6f-92cd-4ad9-ac3f-8fe6dce7e20c

## 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

Simple AI builds AI voice agents that handle real customer conversations over the phone. Our agents help businesses generate revenue and improve customer retention. We’re hiring a Platform Engineer to build and run the infrastructure behind those conversations. Real-time voice has demanding reliability requirements: latency is immediately noticeable, calls are stateful, and deployments need to happen without interrupting customers. You’ll work directly with the founders and engineering team to make our platform reliable, scalable, and easy to build on. This is a hands-on engineering role with meaningful ownership over infrastructure architecture and how we ship software.

## 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 do

- Build and operate AWS infrastructure using Terraform and Kubernetes, including EKS clusters, networking, IAM, load balancing, and secrets management.
- Develop reusable infrastructure modules and consistent development, staging, and production environments.
- Build deployment workflows with automated checks, clear deployment visibility, and reliable rollbacks.
- Design autoscaling and graceful shutdown behavior for services handling long-running voice conversations.
- Improve observability across infrastructure and application services, with useful dashboards, actionable alerts, and clear reliability and latency metrics.
- Investigate production issues, improve incident response, and address recurring problems at their source.
- Partner with application and AI engineers to deploy new services, improve performance, and manage infrastructure costs.
- Make it easier for engineers to provision resources, deploy changes, and debug their services safely.

## What we’re looking for

- 4+ years of experience.
- Hands-on experience running Kubernetes and AWS infrastructure in production.
- Strong Terraform experience, including maintainable modules, state management, and safe infrastructure changes.
- A solid understanding of Linux, containers, networking, and distributed systems.
- Experience building CI/CD pipelines and operating services through deployments, incidents, and growth.
- Ability to write software and automation in a language such as Python, Go, or TypeScript.
- Good judgment about when to introduce new infrastructure and when to keep things simple.
- Someone who takes ownership, communicates clearly, and follows problems through to a lasting fix.

## Nice to have

- Experience with Argo CD, Helm, or other GitOps tooling.
- Familiarity with real-time audio, SIP, WebRTC, or other latency-sensitive systems.
- Experience operating PostgreSQL, Redis, queues, and background workers.
- Experience deploying GPU workloads or self-hosted AI inference.
- Familiarity with infrastructure security and supporting SOC 2 requirements.

## Why Simple AI

You’ll shape the infrastructure of a growing voice AI company and see your work directly affect real customer conversations. There’s room to make architectural decisions, build useful tools, and establish engineering practices that the team will rely on as we grow.

## 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)

## Other roles at Simple AI

- [SDR Manager](https://feeny.ai/job/sdr-manager-simple-ai-san-francisco-jb93de3c44rn) — San Francisco, CA
- [Channel Partnerships Manager](https://feeny.ai/job/channel-partnerships-manager-simple-ai-san-francisco-3cbmhre811w7) — San Francisco, CA
- [Enterprise Account Executive](https://feeny.ai/job/enterprise-account-executive-simple-ai-san-francisco-1dp4xnrkgw7d) — San Francisco, CA
- [Head of Sales](https://feeny.ai/job/head-of-sales-simple-ai-san-francisco-0x7dnkpwbcc6) — San Francisco, CA
- [Software Engineer](https://feeny.ai/job/software-engineer-simple-ai-san-francisco-m4h9ddqadfrt) — San Francisco, CA
- [Sales Development Representative](https://feeny.ai/job/sales-development-representative-simple-ai-san-francisco-9xbc44jbrstk) — San Francisco, CA
- [Senior Sales Development Representative](https://feeny.ai/job/senior-sales-development-representative-simple-ai-san-francisco-1v6k36qraxhh) — San Francisco, CA
- [Sales Engineer](https://feeny.ai/job/sales-engineer-simple-ai-san-francisco-mxe96hgr3y45) — San Francisco, CA
- [Field Marketing Associate](https://feeny.ai/job/field-marketing-associate-simple-ai-san-francisco-qj59gx3ex742) — San Francisco, CA
- [AI Agent Engineer](https://feeny.ai/job/ai-agent-engineer-simple-ai-san-francisco-373343rtxkxf) — San Francisco, CA