Full-Stack & Mobile Engineer

About the company

Nairon GmbH is a Swiss startup building AI voice agents that answer and make phone calls for businesses. Our platform runs real-time conversations over the phone and on the web, connected to our customers' telephony and business tools. We value clear communication, thoughtful engineering, and a collaborative approach to problem-solving. Join us as we continue to develop tools that make a difference.

Your tasks

As a Full-Stack & Mobile Engineer at Nairon GmbH, you will build our product on the web and on the phone in the customer's hand. Your responsibilities will include:

• Designing, developing and maintaining our web application with Next.js, React, Tailwind CSS and TypeScript: the flow editor, call analytics, billing and partner tools.
• Building our native companion app with Expo / React Native or Swift.
• Building features across the stack, from the user interface to the database with Prisma and PostgreSQL, and the Python services behind them.
• Owning features end to end: turning customer needs into requirements, shipping them and checking that they help.
• Applying DevOps practices to support development and deployment, including Docker and, when appropriate, Kubernetes.
• Participating in technical discussions, code reviews and architectural planning.

Requirements

Any relevant experience in web or mobile development is welcome; we are open to junior, mid-level and senior candidates who demonstrate strong practical skills and a willingness to learn.

Required

• Proficiency with Next.js, React and TypeScript.
• Experience building mobile apps with Expo / React Native, Swift or a comparable stack.

Nice to have

• Tailwind CSS, Prisma, PostgreSQL or Supabase.
• Python and FastAPI for backend services.
• Docker and Kubernetes basics; experience with real-time features, audio or AI products.

Communication

• English proficiency is essential, both written and spoken, as it is the working language for all positions.
• German is a plus.

Soft Skills

• Ability to work independently and as part of a distributed team.
• Product sense: you ask why before you build.
• Willingness to take ownership of features and contribute to team discussions.

What we offer

• Flexible Work Setup: Work fully remotely or from a co-working space — whichever suits you best.
• Equipment Provided: Company laptop and phone provided for all employees.
• Collaborative Environment: Join a small, agile team where your contributions have a direct impact.
• Growth Opportunities: Web, backend and mobile in one role, with the chance to expand into AI-related work over time.

How to apply

If you're excited about building a product people use on the web and on their phones, we'd love to hear from you.

Other

Intro For this position we are only looking for candidates located in Greece, Germany or Austria.