Software Engineer

About this role

ABOUT THE ROLE

Join a small, fast-moving team at a Y Combinator–backed conversational AI SaaS startup building an AI voice platform that automates customer call operations at scale for B2C companies. You'll work on a product that handles thousands of AI-powered phone calls every day — spanning sales, support, and operations — and you'll do it in person alongside a sharp, low-ego team in Berlin.

This is a high-ownership, end-to-end engineering role. You'll shape core architecture, ship features with speed, and work directly with customers to turn real problems into elegant product experiences.

WHAT YOU'LL DO

- Work closely with customers to understand their challenges and design product experiences that genuinely solve them.

- Build scalable backend infrastructure capable of handling thousands of concurrent AI phone calls per day.

- Create intuitive, AI-first user experiences on the frontend.

- Own high-stakes projects end-to-end — from initial concept through production launch and post-release support.

- Contribute to core architectural decisions that shape the direction of the platform.

WHAT WE'RE LOOKING FOR

Required

- 2+ years of professional software engineering experience.

- Proficiency with TypeScript, React, Node.js, and Python.

- Strong PostgreSQL experience.

- Proven ability to design scalable backend architectures and make meaningful product/architectural decisions.

- Experience taking a product from 0 to 1 — you've built something from the ground up.

- Ability to own projects end-to-end: concept → production → post-release support.

- Strong collaboration skills — you're comfortable working directly with customers and cross-functional teammates to translate problems into solutions.

Nice to Have

- Familiarity with Temporal.io, Twilio, or Modal.

- Experience with scalable async or real-time processing systems.

- Background building products for AI-first or communications-enabled platforms (e.g. voice, telephony, conversational AI).

COMPENSATION & BENEFITS

- Salary: $75,000 – $160,000 USD annually (depending on experience)

- Visa sponsorship available

- Early-stage equity opportunity

- Work at a well-funded, high-growth startup backed by top-tier investors

LOCATION

This role is on-site in Berlin, Germany. We're looking for people who are genuinely excited to work in person with the team — not a remote-first environment.