Founding Product Designer

Temper

• $125K — $150K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of design experience in B2B SaaS products, particularly complex and technical ones.
  • Strong skills in frontend production, able to implement and ship designs personally.
  • Deep understanding of agentic and HCI design principles.
  • Ability to differentiate between high-quality and excellent design outputs.
  • Proven track record of working independently and taking ownership of projects.
  • Desire to produce top work and grow within an early-stage startup.

Responsibilities

  • Design and develop user interfaces for agentic and platform UX.
  • Collaborate directly with the CPO and engineers on product design.
  • Own the complete design process from concept to execution.
  • Set and maintain design language for future team members.
  • Interface directly with the codebase for implementation of designs.
  • Ensure the optimal user experience for integrations between companies.

Benefits

  • Top-quartile compensation package with equity options.
  • Prime office location in San Francisco.
  • State-of-the-art MacBook Pro and tools to enhance productivity.
  • Comprehensive health coverage for all employees.
Full Job Description
01. The Problem

Lack of connectivity is the most fundamental problem in the physical economy.

The physical economy runs on networks of interconnected companies, but on systems that were never designed to talk to each other. Every time two companies need to exchange data, someone builds a custom integration by hand: business analysts, integration engineers, QA. Manual, every time. (Google EDI if you haven't. It's wild.)

A lot of companies have tried to fix this. Nobody has. We think AI agents are the way.

02. What We're Building

Temper is an agentic integration platform for the real economy. Specialized AI agents handle the full lifecycle: gathering requirements in plain English, generating integration code, testing, deploying, and keeping integrations alive in production. When something breaks, the agents fix it.

We have paying enterprise customers and real integrations running in production. There's more demand than we can keep up with.

Seed-funded with over $8M raised. Earliest team of under 10.

03. What You'd Design

You'd own two product surfaces.

Agentic UX: the interface where people and coding agents build integrations together. Think conductor.build.

Platform UX: the mini-cloud our integrations run on. Think Vercel or Railway. Deploys, runtime, observability, logs.

You design it and you ship it. Design engineer means exactly that.

05. The Role

You'd be our founding designer, working directly with Daniel (CPO) and alongside some of the strongest engineers working in HCI and agent systems today.

You'll own design end-to-end across the agentic ADE, the platform, and the brand, and set the design language every future hire builds on. You're in the codebase, not handing off Figma files. We need your taste, not just your output.

06. You Might Be a Fit If
  • You know the difference between fine and excellent, and you ship excellent.
  • You implement and ship production frontend yourself.
  • You've designed real B2B SaaS products: dense, technical ones.
  • You're plugged into agentic and HCI design. You know what good agent UX feels like.
  • You hold strong opinions and change them when the evidence says so.
  • You move independently.
  • You want to do the best work of your career.
  • You want a true early-stage, in-person experience in San Francisco: fast-paced, high intensity.x

07. What We Offer
  • Top-quartile compensation and meaningful equity
  • Top-tier office in San Francisco
  • M4 MacBook Pro and whatever else you need to move fast
  • Full health coverage

08. The Process
  • Screen (20 min): Quick chat, mutual fit.
  • Deep dive (45 min): Your career, what you've built, how you think.
  • Technical (60 min): Design a system with us. No leetcode.
  • Paid work day: A real task from our backlog, in person.
  • Offer: Under two weeks from first call to offer.

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