Fullstack Developer (Climate Tech start-up)
We operate a stack with a backend built in a strict micro-services pattern with polyglot services written in TypeScript and some in Python. Technologies are chosen to fit the purpose (e.g. time series, relational, no-sql databases). All deployments rely on Helm and run on platform-agnostic Kubernetes clusters.
As a Fullstack Developer at exnaton, you will join our 35-person team and shape the company and its vision from the ground up. Among others, your main responsibilities are the following:
Develop state-of-the-art applications for utility companies;
Build new features for our platform in the backend as well as the frontend;
Build highly-reliable and responsive software, ensure comprehensive testing and quality assurance;
Collaborate closely with the whole design and engineering team to bridge the gap between the backend and analytical core of our product;
Provide input to technology decisions and stay up to date with current technologies.
Qualifications
We operate a stack with a backend built in a strict micro-services pattern with polyglot services written in TypeScript, Python and C#. Our frontend is written in next.js, served by a highly configurable headless CMS using our own component library and will be expanded to an additional application going forward. Technologies are chosen to fit the purpose. We deploy via GitOps and Helm to various Kubernetes clusters running on AWS.
We define ourselves by a culture of collaboration and ownership. We’re looking for a driven, capable, and thoughtful person to add to our mission. The main qualifications we are looking for are:
Holds a degree in computer science, electrical engineering, statistics, mathematics, physics, engineering, or presents relevant professional experience,
Is a seasoned fullstack developer with hands-on experience building cloud/SaaS applications,
Has strong knowledge of JavaScript/TypeScript and modern frontend frameworks (preferably React), and understanding of core concepts like component boundaries, state management, and data visualization
Has experience managing AWS-hosted cloud infrastructure and is familiar with containerization and orchestration tools (Kubernetes, Docker, Helm)
Has familiarity with XML/SOAP interfaces; ideally has worked with microservice architectures and typed APIs (GraphQL, tRPC, OpenAPI)
Is motivated to constantly learn new skills, makes quick decisions, prioritizes what moves the needle, thrives in a dynamic startup environment, and is excited to work in climate tech
Benefits
At exnaton, you can experience a dynamic work environment with a flat hierarchy and direct communication, fostering quick operation and collaborative learning. You can also expect the following:
Competitive salary and equity package,
Flexible working hours and location, as we believe in ownership and trust. We are a remote-first company, and we support those working from different locations (within the EU),
Yearly entitlement of 25 days of paid leave with an additional day off for each year of employment,
Additional benefits such as a company MacBook, a learning budget, sports membership, or Headspace subscription,
Virtual office for a truly interactive collaboration, even in a distributed team,
Working with exciting technology for a really important purpose, together with a highly motivated team.
Published on: 1/17/2026

Exnaton
exnaton is a startup that offers software for renewable energy to energy companies. Our software enables energy providers to enable consumers to share renewable energy.
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