Software Developer (remote in Poland)

Neustark ag; Warszawa; Remote; PLN 211,000 - 297,000; Full time

Job summary

A pioneering technology company in Poland is seeking a skilled developer to create industrial IoT and Azure-driven solutions for carbon removal. The ideal candidate has over 3 years of experience working with C# / .NET and ASP.NET Core, with a strong grasp of DevOps principles. Join a passionate team working towards reversing climate change. Competitive salary and personal growth opportunities await in this exciting, purpose-driven environment.

Benefits

Personal growth opportunities

Collaboration in a purpose-driven team

Flexible working environment

Qualifications

• 3+ years of hands‑on experience developing with C# / .NET 6+ and ASP.NET Core.
• Proficient in Entity Framework Core and PostgreSQL.
• Strong understanding of DevOps principles.

Responsibilities

• Develop industrial IoT, Azure and Business Applications solutions.
• Lead data flow architecture between systems and CO2 source/storage sites.
• Design and implement scalable applications using cloud technologies.

Skills

C# / .NET 6+

ASP.NET Core

Entity Framework Core

PostgreSQL

Microsoft Azure services

REST APIs design

ORMS with Microsoft Dynamics 365

DevOps principles

Education

Bachelor’s degree in Information Technology or related field

Tools

Azure DevOps

Svelte

React

Angular

Job description

At neustark, we’re all in for one mission: permanently removing one million tons of CO2 in 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.

What we’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.).