Senior Software Engineer for IoT Cloud (f/m/div.)

Our team is turning the vision of making homes smarter, greener, and ultimately, better places to live into reality.  

We build innovative IoT cloud solutions that help consumers optimize the performance of their heating, air conditioning, and ventilation systems. At the same time, we support internal teams with reliable, scalable technology that drives smarter living and working environments.  

We combine different skills, tastes, interests, and experiences into a culture that loves to challenge the status quo, looks for perfection in the little details, and deeply cares about making lives easier for the people using our connectivity services. Our team is like a mixed bag of snacks — sweet, salty, a little nutty, and somehow perfect together.  

We as a team get it done because: 

• We actively share knowledge and we collaborate with other teams’, to discuss and clarify doubts, or to solve bugs together.

• We strive for quality also in the little details: All our code goes through pull requests and through a battery of tests at several layers. 

• We deploy to production several times per week and with a click of a button.  

• We talk with stakeholders and their needs are at the forefront of all our developments. 

• We launch feature experiments with ideas from the team and we make everyone feel safe to contribute. 

The Tech Stack We Build With 

We are building backend services and APIs: 

• Our main development language is Java 21, with Spring Boot. 

• Our test setup is supported by Robot, Junit and Testcontainers. 

• Our database is on Postgres and MongoDB, and we cache with Redis. 

• Our infrastructure is running on Azure, Kubernetes and managed with Pulumi. 

Your contribution to something big:

We develop and operate a scalable IoT cloud platform with over 500,000 connected devices, empowering customers to optimize their heating, cooling, and ventilation systems. Our solutions not only enhance everyday comfort and energy efficiency but also contribute to a more sustainable, connected future. 

As a Senior Java Developer, you will be an active voice in shaping and developing services that are changing the course of residential heating and cooling solutions. You will be part of a talented, motivated, and multicultural team that fosters continuous improvement through learning, retrospectives, and feedback. 

On a typical day you will: 

• Write well-designed, testable, and efficient code. 

• Develop unit, integration and E2E-tests. 

• Contribute to the full software development lifecycle. 

• Collaborate with other developers, product owners, and stakeholders. 

• Identify areas of improvement in our services and processes. 

• Review code and solutions constructively. 

What distinguishes you: 

These are the areas where your extensive experience will help us: 

• Solid knowledge of Java and Spring Boot. 

• Ability to build, and improve upon, event-based, asynchronous, architectures.

• Experience in building and using high-performance API-based services. 

• Comfortable considering and applying software architecture patterns.  

• Experience in agile software development. 

• Strong written and verbal communication skills in English. 

• 3 years of working experience in backend software development,  

• An academic degree in Computer Science or similar is big plus 

You Would Be a Great Fit If 

You love to build services with a team and learn every day. But also, you: 

• Take ownership of the things you build, from the planning to delivery and stakeholders. 

• Can work with, and improve upon, established patterns and ways of working of the team. 

• Actively participate in group discussions by debating ideas or offering contrarian views and sharing that knowledge. 

• Promote conclusions and seek concrete action plans that move the team forward. 

• Welcome change, in priorities, goals, or information, and are comfortable adjusting plans to make the most out of the situation.