---
title: 'Product Designer at Sauna'
canonical: 'https://feeny.ai/job/product-designer-sauna-san-francisco-vyaae9z6w49g'
type: 'job'
last_seen: '2026-09-09'
---

# Product Designer at Sauna

- **Company:** Sauna
- **Location:** San Francisco, CA
- **Compensation:** $140k–$220k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-05-20
- **Last confirmed live:** 2026-09-09
- **Apply:** https://jobs.ashbyhq.com/sauna.ai/42eb2ae9-0ba2-4332-a4c2-3f66ebe02ac3

## Job description

## ⚠️ PLEASE READ FIRST

- This is a full-time, in-person role based in San Francisco (Presidio) - we work from the office 5 days a week.
- You must be based in the Bay Area or willing to relocate before starting.
- We require US work authorization, but are open to O-1 or J-1 visa sponsorship for exceptional candidates.

## ABOUT SAUNA BY WORDWARE

Every tool you use was built as an island, so you became the glue between them. You carry a name from Gmail into the CRM, a time from the CRM into Calendly, a note from Calendly into a doc. AI showed up and mostly became an eleventh window to paste into.

Sauna is a hybrid of AI and software standing on one shared brain. It holds your context and hands you real software built on top of it. You talk to it like a chatbot and use what it builds like an app: software for the path you repeat, AI for the edge that never repeats. Keep it to yourself, or share the brain with your team.

The clearest way to see it is a tool doing what its whole category cannot. An ordinary Calendly shows a stranger your free slots. Your Calendly writes the invite email itself, because it knows how the two of you know each other, and it offers a board member the slot over your gym block, because it knows which of your busy hours bend and for whom.

Wordware is the team behind it, 15 people backed by Spark Capital, Felicis, and Y Combinator with a $30M seed, the largest in YC's history. We build from an office in the Presidio, fifty metres from Crissy Field beach, and we work absurdly hard because we can see and feel the outcome every day.

## ABOUT THE ROLE:

We're looking for a Product Designer to reimagine how humans collaborate with AI. You'll be designing the interfaces (not just screens) that make collaborating with AI and building AI assistants feel as intuitive as having a conversation with a friend, colleague or employee. This role requires someone who can navigate extreme complexity while maintaining an unwavering focus on delight and the experience for the user. You'll work directly with our engineers to create design patterns that don't exist yet, shaping how millions will build and collaborate with AI. As an early team member, you'll have an outsized impact on our product's evolution and report to our CEO and Head of Product.

Heads-up: while we don't use seniority titles at Wordware, this role is intended for designers with 5+ years of experience who are already operating at a Senior, Staff, or Principal level.

What You'll Do:

- Design end-to-end user flows for AI agent creation, from natural language input to deployment
- Design across platforms: you should be comfortable working on mobile interfaces, desktop, and responsive web
- Develop interaction patterns for real-time feedback where the assistant comes alive in the experience, while keeping the underlying mechanics quietly out of the way
- Build and maintain our design system, ensuring consistency across rapidly evolving product surfaces
- Prototype novel interfaces using real AI models to validate design decisions with actual system behavior and real users
- Partner with engineering to ensure designs perform beautifully at scale
- Conduct user research to uncover unmet needs and opportunities
- Design for progressive disclosure, revealing complexity only when users need it
- Create motion and micro-interactions that make synchronous and asynchronous AI processes feel responsive
- Influence product strategy by identifying opportunities through design exploration

Who You Are:

Minimum:

This role demands someone who thrives at the intersection of design craft and technical systems.

- Have designed complex products that achieved both usability and adoption goals
- Demonstrate deep understanding of information and interaction architecture for multi-platform systems
- Show expertise in interaction design, including keyboard-first interfaces
- Bring strong visual design skills with proven ability to create cohesive, scalable design systems
- Excel at prototyping, from paper sketches to high-fidelity interactive demos (bonus: the closer to real code the better)
- Understand interface development concepts and limitations for mobile and web to design feasible solutions
- Communicate design rationale effectively to both technical and non-technical stakeholders

Bonus (but not required):

- Built products using LLMs or other AI technologies as a designer or builder
- Digital native who leverages AI as a creative partner, using generative models and AI tools as a real competitive advantage in your workflow
- Thrive in an AI-native environment where pushing boundaries with these tools is part of the daily practice
- Motion design skills for creating fluid, responsive interfaces
- Code proficiency enabling you to build functional prototypes or contribute to implementation
- Experience with design engineering, bridging design and development workflows
- Track record of designing for uncertainty and evolving system capabilities
- Background in conversational UI or natural language interfaces
- Published writing or talks about product design
- Experience designing for both technical and non-technical users in the same product

Compensation & Benefits:

Base salary: $140K–$220K + meaningful early-stage equity + health, dental, 401(k), considerable PTO, gym budget, lunch.

## THE PROCESS:

We keep our process simple. Exceptional candidates go from first touch to offer within 2 weeks.

1. Application: Submit your resume and answer a few short questions.
2. 15-minute intro call: Quick check to align on location, motivation, and logistics. If it's a go, we move fast from here.
3. Portfolio review & design exercise: Walk through your work, then work through a real Wordware design problem with us.
4. Final conversation: We answer your questions and scope out the work trial.
5. Work trial: Paid, in person, usually a few days to two weeks. You work on a real project with us. See how we work, see if it fits, both sides.

## About Sauna

## Company Overview
- **One-liner**: Sauna is building a multiplayer AI agent that learns how you and your team work, remembers everything that matters, and acts on your behalf across thousands of connected tools.
- **Entity Type**: Private (Seed stage)
- **Headquarters**: San Francisco, CA, USA
- **Founded**: Not publicly available
- **Founders**: Not publicly available (company is described as being built by "ex-YC founders")

## Core Business
- Primary industry/industries: Artificial Intelligence, Enterprise Software, Productivity
- Target customers: B2B, teams and knowledge workers
- Mission or purpose statement: To create an AI agent that works as a teammate—running in the background, learning context across sessions, and getting work done even when users are offline.

## Products & Services
- **[Sauna AI Agent]**: A cloud-based AI agent that connects to over 3,000 tools and apps (Linear, GitHub, Notion, Gmail, Google Calendar, Jira, HubSpot, Stripe, etc.). It drafts messages, tracks what matters, files tickets, and delivers briefings. It is "multiplayer"—teammates share a Sauna's context and memory, and individual agents can communicate with each other. Available on web app, iOS, iMessage, Slack, and email.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: Total funding of $30M (largest seed round in YC history)
- **Notable Investors/Partners**: Y Combinator, Spark Capital
- **Growth Signals**: Named "Makers of the #1 Product of All Time on Product Hunt"; launched publicly on April 29, 2025; currently 18 employees; shipping to first paying users; described as building "Cursor for knowledge work"

## Competitive Advantages
- **Multiplayer AI**: Unlike single-user AI assistants, Sauna allows entire teams to share context and memory, and individual agents can communicate peer-to-peer.
- **Always-on Cloud Agent**: Runs 24/7 in the cloud, working even when the user is offline—drafting, tracking, filing, and briefing autonomously.
- **Massive Tool Integration**: Connects to over 3,000 tools and apps, with custom MCP connector support.
- **Record Seed Round**: The largest seed round in YC history signals strong investor confidence and ample runway.

## Strategic Focus
- Current priorities include scaling the agent runtime to handle 1000x current load, building out sandbox infrastructure for secure code execution, and expanding the product to serve more team workflows. The company is hiring heavily across engineering, product, and growth roles to accelerate product-market fit.

## Why Work Here
- **Culture**: Early-stage startup (18 people) with a "ship fast" ethos—one-week sprints, weekly demos, and features going from sketch to launch in days. The company uses its own product daily.
- **Work Policy**: Fully in-office, five days a week at the Presidio in San Francisco. Relocation required for non-local candidates.
- **Compensation**: Competitive base salary ($180K–$240K for Senior Full Stack Engineer), meaningful early-stage equity, health/dental, 401(k), considerable PTO, gym budget, and lunch provided.
- **Engineering Culture**: Work directly with the CTO; own infrastructure decisions that determine system reliability at scale; build real-time streaming, task queues, and multi-model LLM routing.
- **Hiring Process**: Simple and fast—exceptional candidates can go from first touch to offer within 2 weeks. Includes a paid in-person work trial (a few days to two weeks).

## Sources
1. [sauna.ai](https://www.sauna.ai/)
2. [builtin.com - Sauna Jobs](https://builtin.com/company/sauna/jobs)
3. [ainative.careers - Product Manager at Sauna](https://ainative.careers/jobs/sauna-product-manager)
4. [jobs.ashbyhq.com - Growth @ Sauna](https://jobs.ashbyhq.com/sauna.ai/56f92234-3ad1-4eaf-8f95-c53fa15af0a0)
5. [builtin.com - Senior Full Stack Engineer (Back-End)](https://builtin.com/job/senior-full-stack-engineer-back-end/9906576)

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