Founding Designer

About us

At telli we are building AI voice agents that are reshaping an entire industry.

Since launching 8-months ago we raised a $3.6M pre-seed round from Cherry and Y Combinator and grew to $1M in ARR. We are looking for a team members who want to go all-in to help us achieve the next milestone: $10M in ARR.

Two of our co-founders Finn and Philipp previously scaled the heat pump unit of energy unicorn Enpal from 0-150 people. Theyve seen the ins and outs of scaling phone-based customer processes. These businesses are rushing to deploy AI voice agents. However creating a demo is easy; building reliable agents that handle millions of calls in production is incredibly hard.

In a world where intelligence becomes a commodity it is up to us builders to craft new product experiences that let people harness the power of AI.

But building AI voice agents comes with challenges:

What is the most intuitive way for humans to build and adjust their own AI agents

How do you build agents that work reliably across millions of calls in a world of non-determinism

How do you ensure that customers can use the latest foundational models without having to understand the technical trade-offs

How do you enable companies to build hybrid teams of human and AI agents

What does human-computer interaction look like if instead of having UI elements you have a hyper-intelligent sidekick

These are unsolved problems. Problems that havent existed since the invention of computers. Solutions that worked in a pre-LLM world wont work today. Nobody knows how to solve these problems; its up to us to figure it out.

Were a small fully in-person team based in Berlin. Even though most people have told us to build this company in SF because of better talent - we know there is amazing talent in Europe. We believe you can build a multi-billion dollar software company in Europe and there is no better time to do this than now.

About the role

This is a high-ownership role for a founding designer who cares about velocity and solving real customer problems. You wont just create mockups you will own the entire design process end-to-end speaking directly to customers and making core product and UX short youll have a significant impact on the direction of our high-growth ambitious product.

Youll be our first full-time designer with ownership over UX and UI across the entire product. This means you need to be comfortable designing for complex AI-first workflows while maintaining the simplicity that makes our product accessible to non-technical users.

What you will do

• work closely with our customers understand their problems and design product experiences that solve their challenges
• own the end-to-end design process for features that process and analyze thousands of AI phone calls a day
• build prototypes and test product hypothesis with customers
• create intuitive interfaces that make sense in an AI-first world where traditional UI patterns dont apply
• collaborate directly with engineers to ship high-quality features quickly
• lead user research projects across the company

Your profile

• you have worked as a product designer ideally in an early-stage company
• you love speaking to customers directly to identify pain points and problems
• you have owned the development of product features ideally in B2B
• you feel comfortable shipping frontend changes (React / Tailwind) to production
• you dont just express designs in Figma but also feel comfortable with tools like v0 Lovable Cursor etc. to build usable prototypes
• youre a high-agency generalist who can work across the entire product
• you have a deep interest in AI and large language models and are excited about the unique design challenges of voice AI interfaces
• have thrived in high-ambiguity environments: resolving uncertainty embracing failure and crystallizing what matters
• care about building reliable production-ready experiences (not just demos) but arent afraid to dive immediately into a problem and prototype without needing too much input

What makes you a great fit

• you align with our principles
• you take full ownership of projects
• you want to work in-person in Berlin
• you know what it takes to succeed in a fast-paced high-ambiguity environment
• you know how to prioritize high-leverage work
• you want to work with a smart and driven team with (self-reported) low ego
• you want to help build a multi-billion dollar company from the ground up
• strong portfolio showcasing your work on complex user-centered products
• proficiency in modern design tools (Figma etc.)
• experience designing for both web and mobile platforms
• (bonus) you speak German natively (our biggest customers are German-speaking)

You may not be a good fit if

• you prefer a remote-first environment
• you like to work on your own with minimum collaboration
• you have no prior experience in software engineering teams
• you only want to work on visual design instead of the entire user experience
• you think AI is just hype and doesnt provide real value
• you want to work 9-5

Perks

• above-market pay & equity
• access to any (AI) tool that makes you more productive
• gym subscription
• company trip to San Francisco in fall 2025

Key Skills

Graphic Design,Layout Design,Logo Design,CAD,Adobe Creative Suite,SolidWorks,Drafting,Adobe Photoshop,Autocad,Adobe Illustrator,Catia,Adobe Indesign

Employment Type: Full-Time

Department / Functional Area: Engineering

Experience: years

Vacancy: 1

#J-18808-Ljbffr