telli was founded in 2024. We were part of the YC Fall ‘24 batch. In the last couple of months, we’ve grown to 6-figure ARR and raised a $3.6M seed from investors including Cherry Ventures, Y Combinator, and great strategic angels

about us

At telli, we're building the first AI-native phone system.

Since launching last year at Y Combinator (the same investors behind Airbnb, Stripe, Twitch, Coinbase, and others), we've grown >$2M in annualized revenue with a team of only 12 people.

Today, many companies fail in their customer communication not because they don't care, but because they can't keep up. The sheer volume of calls forces to rely on low-quality outsourced call centers or have their internal teams waste hours on repetitive calls.

With telli, our customers now rely on AI voice agents that handle their repetitive calls, freeing human to focus on what matters - talking to customers when it counts. The result: higher efficiency, happier teams, and better customer experiences.

Legacy phone systems weren’t designed for an AI-first world. That is why we are building the first AI-native phone system that lets companies manage both their human and AI teams on one platform.

Our founding team knows this problem inside-out. We ran a 150-person internal call center at Enpal. We know how difficult and expensive it is to scale high-quality customer experience with phone calls.

The opportunity is massive!!! and we're just getting started. We're on a mission to let every company provide a world-class customer experience by ending the era of low-quality call centers.

your mission

This is a pivotal hire for telli and a career-defining role for a true builder. Your mission: architect our company’s AI-native operating system from first principles. You won’t be running old playbooks; you will be building the intelligent engine designed for one purpose: to deliver a flawless customer experience that scales us to $100M ARR.

what you’ll be responsible for

• Master the entire customer lifecycle, from designing a seamless onboarding process to driving expansion and renewal, always striving for world-class customer experiences

• Design, implement, and scale core business processes with an automation-first mindset, using tools like n8n or Zapier to ensure we operate with maximum efficiency

• Systematically gather, analyze, and champion customer feedback to the founders and our engineering team, directly influencing our product roadmap and identifying new growth opportunities

• Collaborate closely with engineering to define and improve the internal tools we need to scale effectively and serve our customers better

• As a foundational member, you will play a key role in defining the culture, processes, and structure of our operations team

what makes you a great fit

• you are a world-class operator with experience in building and scaling businesses, whether in a hyper-growth startup or your own venture

• you’re tech-savvy (or have a semi-technical background) and curious about how AI agent products work

• you are customer obsessed and have a business sense to understand problems, pain points and needs of our customers

• you have experience in and are enthusiastic about leading initiatives end-to-end

• you’re are hands-on and not afraid of doing unglamorous work

• you love solving problems and figuring things out on your own

• you’re a strong communicator in both German and English

• you want to work on-site 5 days a week in Berlin

you may not make a good fit if…

• you need detailed instructions and shy away from taking responsibility

• you lack experience with automation/AI tools or basic technical understanding

• you're only interested in high-level "strategic" work

• you don't enjoy direct customer interaction or thriving in dynamic environments

• you prefer working remotely

• you prefer working with minimal collaboration

• you avoid hands-on, practical work

• you want to work a 9-5 job

our tech stack includes TypeScript, React, TanStack, Node, Python, Postgres as well as Temporal.io and Pipecat. But more than familiarity with any specific technology, we value a customer-centric approach and ability to ship end-to-end features.