Company: Ambio

Location: Helsinki, Finland (mostly on-site)

Type: Full-time

Seniority: 4+ years of professional full stack web development experience

About Ambio

Ambio is an AI-driven physical commodity trader on a mission to accelerate the transition to sustainable materials. This mission is progressing fast in our primary domain, recycled plastics.

We work closely with 100+ industrial manufacturers in the Nordics and DACH region through the full procurement cycle, making sustainable material options the obvious choice, not the hard one. Our agentic trading technology and the widest material selection in Europe got us here. We are building a world where recycled materials are the default, and Ambio is the market that makes them flow.

We’re a diverse team of traders, operators, polymer engineers, and software devs across Helsinki, Berlin, and Stockholm, with funding from e.g. Lifeline Ventures.

More information about Ambio: https://ambiomaterials.com/

Role

We're looking for a full stack software engineer (web/AI) to join our product team and build the digital infrastructure that powers real-world trading and logistics. This role is a great fit for someone who is excited about startups and building with AI in the center. This is an on-site position in our Helsinki office.

Signs you would be a great fit for this role:

• Genuine interest to work at a fast growing startup with a high ambition level and to take real ownership in developing the product
• Ability to work across our full stack: Node.js, Typescript, React, PostgreSQL, Google Cloud Platform, Terraform, Github Actions – we don’t expect you to be an expert in everything but the nature of the work is more backend-leaning than frontend and we particularly appreciate deep expertise with Typescript
• Your ideal work day involves more than picking up tickets from a backlog and building them independently – you enjoy collaborating both with other developers and end users
• You are interested to work in a flexible, but mostly on-site team (office based in central Helsinki)
• Interest in AI-native development: LLM APIs, tool use, retrieval, agent architectures
• You care deeply about code quality and moving fast and can find the right balance between the two

What you'll do:

• Build and maintain full stack features across our React frontend and Node.js backend