Jobs in Kielce, Poland

exnaton is a startup, spun out of ETH Zurich, which offers software for renewable energy to utility companies. Our software enables energy providers to set up energy communities and smart energy tariffs in their distribution areas. Users of our software can track their energy consumption and buy renewable energy from their neighbors, which makes investing in the energy transition simple and fun!

Prosumers, dynamic electricity tariffs, and energy sharing are UIKit for the energy transition and becoming integral components of the decentralized energy world. Our software is a cloud application that processes smart meter data and computes smart real-time prices for locally produced energy which makes renewable energy financially more attractive. End-users receive an app that maps the sources of their energy, making their electricity consumption more understandable.

Our team is growing and we are looking for passionate and talented people to complement our team. We are a diverse mix of engineers and business developers, all driven by the shared goal of using technology to create a sustainable impact in our society. If you're enthusiastic about contributing to this exciting journey, we invite you to be a part of our innovative and motivated team.

The job can be performed remotely in EU countries.

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, statenpos management, and data visualization
• Has experience managing AWS-hosted cloud infrastructure and is familiar with containerization and orchestration tools (Kubernetes, Docker produces, 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

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.

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.