Software Developer (remote in Poland)

At neustark, we’re all in for one mission: permanently removing one million tons of CO₂in 2030, and even more every year beyond that. Why? It’s a no-brainer: we want to enable a bright future for all future generations on our planet. And for that, we need to reduce and remove CO₂, now.

Sound exciting? Well, there’s more! We’re a closely knitted team of around 60 neustarkers, working flexibly, internationally and full of passion and ambition. We’re scaling up our solution and impact every day, currently in full-fledge expansion mode. Speed and pragmatism drive our day-to-day, as do growing together and having tons of fun together!

Do you want to help us grow our impact? Then join our carbon removal mission today 🚀

What your future team does:

Neustark’s IT team is at the interface of our operations both internally as well as with our partners along our supply chain. We work closely with the in-house operations, production, and carbon removal sales and certification teams to design and track the impact of our CO2 storage sites. Our value-add: building new and enhancing existing processes via advanced connectivity, data structure and monitoring solutions. Next to our external-facing role, the team also shapes and implements the full breadth of business IT projects to secure a high-quality, high-impact IT environment.

What your job could look like:

• Develop industrial IoT, Azure and Business Applications solutions and interfaces that are fundamental in managing and tracking our carbon removal along all steps of our supply chain

• Lead the architecture of data flow between our systems and all of our CO2 source and storage sites

• Design and implement state-of-the-art, scalable applications using the latest cloud-native technologies

• Create and manage our firm-wide Azure DevOps environment, also leading structured deployments of projects

What’s in it for you:

• Helping to shape a pioneering technology company with a true purpose: to stop and reverse climate change!

• Joining a fast-growing scale-up, you will have an abundance of personal growth opportunities and significantly help to shape our company in its next phase(s) of development.

• Being an integral part of an enthusiastic, purpose-driven, young and fun team.

• Bringing in your ideas and strengths to enhance our strongly knitted yet open-to-learn-and-grow team.

Whatwe’re looking for:

• Current physical residency in Poland.
• Bachelor’s degree in Information Technology or a related field.
• 3+ years of hands-on experience developing with C# / .NET 6+ and ASP.NET Core (Web API, MVC, or minimal APIs).
• Proficient in Entity Framework Core and PostgreSQL (or other relational databases).
• Experienced with Microsoft Azure services, including Functions, App Service, IoT Hub, Event Hub, Service Bus, Key Vault, and Cosmos DB.
• Skilled in designing and developing REST APIs and backend data services.
• Experience integrating front-end frameworks such as Svelte, React, or Angular, and designing APIs for UI consumption.
• Experienced in integrating .NET systems with ERP platforms, especially Microsoft Dynamics 365 Business Central, using OData/REST APIs, Azure Functions, and Service Bus for secure, event-driven data exchange.
• Strong understanding of DevOps principles, including CI/CD automation, containerization, version control, and infrastructure as code.
• (Nice to have) Experience with industrial IoT systems, including OPC UA clients, telemetry data processing, and message brokers (MQTT, AMQP, etc.