Full-Stack & Mobile Engineer

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

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 Type Script: 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 Dev Ops practices to support development and deployment, including Docker and, when appropriate, Kubernetes.
• Participating in technical discussions, code reviews and architectural planning.

Experience:

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.

Technical

Skills:

Required:

• Proficiency with Next.js, React and Type Script.
• 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.

• 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.

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