(Senior) Software Engineer - Control (m/f/d) Berlin

1KOMMA5°

We seek a highly skilled Software Engineer – Control to join our growing tech & product team. 1KOMMA5° is building Germany’s largest one-stop-shop for sale, installation, and services related to solar, heat pumps, electricity, and charging infrastructure. Be a part of our mission!

Your mission

In Tech & Product we have two main work streams:

• Heartbeat AI: Building a virtual power plant leveraging our energy manager “Heartbeat” and evolving the customer experience app around this.

• Operating System for installation companies: Digitisation of operations and processes from ground operations to rooftop installations.

As a Control Software Engineer, you will design, build, and maintain control software for our heartbeat IoT device, managing renewable energy assets. You will use MATLAB/Simulink to model, simulate, and optimize control strategies and collaborate with hardware and cloud engineers to integrate control solutions into our energy management system. Your role involves implementing and validating communication protocols on IoT gateway devices, and conducting testing of our energy management system in our lab in Berlin. You will also provide expert-level support for both internal and external stakeholders. Collaborating with cross-functional teams, you’ll contribute to the entire product lifecycle.

Key responsibilities include but are not limited to:

• Develop, deploy, and maintain control logic on IoT gateway devices using Matlab/Simulink.

• Analyze control performance and improve efficiency, reliability, and scalability.

• Conduct testing of our energy management system in our lab in Berlin.

• Integrate PV inverters, batteries, charging infrastructure, and heat pumps into our heartbeat platform.

• Implement communication protocols such as Modbus TCP, OCPP, MQTT, EEbus.

• Collaborate with cross-functional teams to ensure software meets performance and reliability standards.

• Provide expert-level support to both internal and external stakeholders.

Your profile

You have:

• Bachelor’s or Master’s degree in Computer Science, Electrical/Electronics Engineering, Control Engineering, or related field.

• Experience in modeling dynamic systems / energy systems in Matlab Simulink.

• Proficiency in developing control algorithms for dynamic systems / renewable energy assets.

• Proven experience in IoT development and integration, with a focus on integrating diverse OEM devices.

• Hands-on experience in the development of embedded software modules for IoT devices.

• Experience with communication protocols such as Modbus TCP, OCPP, and MQTT.

• Exposure to IoT development using GoLang is advantageous.

• Understanding of energy management systems and related technologies.

• Familiarity with DevOps practices and tools, including continuous integration and deployment (CI/CD) pipelines.

• Excellent troubleshooting and problem-solving skills.

• Experience quickly finding your way around in cross-functional teams in a fast-paced, interdisciplinary working environment.

• An agile and result-oriented mindset and you consider yourself a team player.

• Very good knowledge of spoken and written English; German is a plus.

Bonus points for:

• Experience with automation or testing frameworks in Python.

• Experience with Linux build systems, particularly Yocto.

• Previous experience in providing support to international stakeholders.

• Certifications related to IoT and energy management.

• Interest in the climate tech industry.

Even if you do not meet all the listed requirements, we still encourage you to apply and reach out to us. We value diverse experiences and believe that the right candidate may bring unique skills and perspectives to the role.

We are an ambitious and dynamic company with a talented team. We require our engineers to be imaginative, enthusiastic, and willing to tackle new challenges as we strive to provide everyone with renewable energy technologies.

Benefits

• Contribute to a dynamic and highly motivated team with people who have proven that they can make things happen and move companies forward.

• With your work, you accelerate the „energy and mobility transition“ and make a concrete contribution to the sustainable transformation of our energy infrastructure.

• You move in flat hierarchies and have direct contact with the managing directors as well as short decision-making paths.

• Work with and learn from other skilled engineers and join conferences and exciting meetups.

• You can work remotely (Germany-wide), with offices in Berlin, Hamburg, and Munich.

• See the direct impact of your work on a rapid-scaling user base.

• Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass.

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