Software Developer - IOT (f/​m/​d)

E.ON Digital Technology GmbH

Hybrid, Permanent contract

Full or part time

This job

E.ON Digital Technology GmbH

Do you want to actively shape and drive the digital future of E.ON…? And to be part of an innovative, dynamic, and international project team? E.ON Digital Technology is looking for you!

If you’re passionate about technology and sustainability, join our EIS Digital Solutions team at E.ON Digital Technology (EDT) and help shape the digital future of E.ON. We're at the forefront of Europe's energy transition, innovating and implementing sustainable technology solutions. Our focus is the Energy Infrastructure Solutions (EIS) business.

EIS serves more than 1.5 million customers, employs over 6,000 people, and operates close to 7,000 plants with 5,000km of heat, cooling, and steam grids. Building on our strong financial profile and ambitious growth targets, we are recognized as the change agent for the sustainable transition of cities and industries.

Software Developer - IOT (f/m/d)

Locations: Essen (NRW), Hanover (NDS), Würzburg (BY), Munich (BY), Berlin (Berlin), Hamburg (Hamburg), Frankfurt (HE)

Applications can only be submitted online via our portal. Please understand that we cannot consider applications that reach us by e-mail.

Job description

As part of our EIS Digital Solutions team, you'll drive digital transformation, building and scaling digital applications across EIS Regions in areas like energy system optimization, smart asset management, and meter-to-cash.

Join us and become a Software Developer - IOT (f/m/d) for the sustainable transition of cities and industries.

meaningful & challenging - Your tasks

  • Designing, building, and maintaining efficient, scalable and reliable code for an IoT gateway to connect our assets in the field to our IoT Platform
  • Implementing automation protocols like OPC UA or BACnet/IP and the necessary business logic to retrieve asset data
  • Steering the architectural development of the gateway with its protocol and cloud connectivity modules
  • Building and maintaining /operating the DevOps environment for the gateway
  • Defining and implementing IoT security features required for safe remote operations
  • Taking accountability to provide guidance and troubleshooting in collaboration with project team members (DevOps).
  • Maintaining up-to-date knowledge of technologies and trends in automation industry

authentic & ambitious - Your profile

  • Profound experience of software development in building or industrial automation domain
  • Familiarity with modern automation protocols like OPC UA and BACnet/IP, with linux user space and developing linux based hardware (Raspberry PI)
  • Proven track record to build robust, yet flexible software architectures that cope with dynamically changing business requirements
  • Experienced in development using NodeJS, GoLang and Python
  • Worked with Azure IoT infrastructure and services as well with container technologies like Kubernetes, Docker and Azure IoT Edge
  • Good understanding of messaging technologies, architecture, inter process communications and API development
  • Experience in DevOps tools (Gitlab, Artifactory) and agile enablement tools (JIRA, Confluence, Miro)

We are seeking individuals (f/m/d) for our team who embody a 'can-do' attitude and a passion for learning. Skills can be acquired and honed with dedication, a positive attitude and a growth mindset are the foundation for success in our organization.

smart & useful - Our benefits

  • We provide full flexibility: Do your work from wherever you want in Germany; of course, including all our great offices (from Hamburg to Munich). You want even more? Go on workation for up to 20 days per year within Europe.

  • Recharge your energy: You have 30 holidays per year (Christmas and New Year´s Eve are always free days). Your battery still needs charging? You can exchange parts of your salary for more holidays, or you take a sabbatical.

  • Your development: We grow – and we want you to grow with us! We support you with individual trainings and push your personal and professional development to the next level.

  • Let’s empower each other: Take the opportunity to engage in our Digital Empowerment Communities for collaboration, learning, and network building.

  • We elevate your mobility: From car and bike leasing schemes to job tickets for most of our locations– your way is our way.

  • We also think ahead: With our company retirements scheme and a great insurance package we take care of your future.

  • This is by far not all: We are looking forward to speaking with you about further benefits during the recruiting process.


It is important to us that people with disabilities have access to a fair application process, providing them with an opportunity to shine. Therefore, our representative body for severely disabled people will be included in the process from an early stage. Please let us know via the application form if you require technical or organisational adjustments during the application process. We will strive to make the required aids available.

Should you not be able to apply online and want to speak someone in person, please contact your local recruiter.

What else you should know:

Type of contract:Permanent contract
Employment type:Full or part time
Work Model:Hybrid
Company:E.ON Digital Technology GmbH
Job number:225672

As long as the position is advertised on our careers page, we are looking for suitable candidates (f/m/d). We look forward to receiving your application!


Any questions?

Stephan Fiedler will be happy to answer any questions you may have by e-mail. We cannot consider applications by e-mail. Thank you for your understanding.

As long as the position is advertised on our careers page, we are looking for suitable candidates (f/m/d). We look forward to receiving your application!

Application process

Depending on the company and position, the process may vary. So we are providing you with an exemplary overview of the possible steps involved. Your recruiter can help you with any additional questions you may have.

  • Online application

    Your online application is the first step of the application process. All jobs are advertised in our career portal. Create an application profile – it will only take about two minutes and can open the door for you to jobs in all E.ON Group companies worldwide. All applications for advertised jobs at E.ON must be made online.

  • Interview

    In the interview, we get to know each other better. Tell us about yourself and ask us anything that is on your mind: about the position, the team or generally about E.ON as an employer. The interview will take place either in person or online. We look forward to meeting you.

  • Contract and onboarding

    Welcome to the team! We want to make sure that you'll find your way around the company quickly. During your onboarding you’ll learn everything you need to know about E.ON and your new work environment.

We value and foster diversity

Society is diverse – just like our workforce. We’ve proved that fresh ideas and perspectives always emerge when an exciting blend of different people work together. That's why we work hard to become a diversity pioneer.

In 2008, we signed the German Diversity Charter. We are also a member of numerous national and international networks and initiatives that deal with various aspects of diversity.

And we also promote an inclusive culture internally. To name just two examples: In Germany, we run a mentoring programme to prepare female employees for leadership positions. We also launched the CEO Awards for Diversity & Inclusion in 2018. The awards support people and activities at E.ON who are committed to diversity and inclusion.

Behind the scenes

At E.ON we are convinced that good energy connects. Get to know the people at E.ON, find out what we stand for and what topics you can work on with us.

Svea Klaus, Data Scientist

Svea: "I wanted to be at the forefront of technological developments, especially in the area of artificial development."


We have already received several awards for our commitment as an employer - including in the areas of women and family friendliness and as a "Top Company" from the employer rating platform kununu.

Hybrid Working

For the most part, we have a hybrid working model in place where we work partly in the office and partly from home, depending on the task. This supports your work-life balance and protects the environment. We value personal exchange just as much as digital opportunities for collaboration, and we’ll provide you with the equipment and digital tools you need to do your job well. Please contact your recruiter to learn more about the working options of your desired position.

About E.ON

E.ON is one of Europe's largest operators of energy networks and infrastructure and a provider of innovative energy solutions for around 48 million customers. Around 74,000 employees are constantly working to digitize the energy world, achieve net zero and connect everyone to good energy. To achieve this, we are focusing our actions on sustainability, digitalization, and growth. We strongly believe that differences make us stronger and welcome all people into our inclusive and diverse culture.

Together into a green energy future

What makes E.ON stand out as an employer

  • Sense of purpose

    Together we pave the way for the green energy transition in Europe and enable society and our customers to become C02-neutral.

  • Sustainability

    We make energy cleaner and smarter, giving our customers access to a sustainable supply of electricity and heat.

  • Winning culture

    We promote an inclusive culture where everyone feels valued and where everyone can reach their full potential and make a meaningful contribution to E.ON's success.

  • Recognition

    We value the contribution of each individual. We recognise individual achievements and reward the successes we deliver as a team.

  • Work Life Balance

    Family or career? It doesn’t have to be either/or. Whether flexitime, part-time or hybrid working: At E.ON, you will find the right model for every life situation.

  • Health

    Benefit from our wide range of health and well-being offers and take advantage of preventative activities.

  • Network

    Joining E.ON opens the door to countless opportunities – regionally and internationally.

  • Development

    Whether you're looking for a specialist or management career, our individual training programmes will help you develop both professionally and personally.

  • Onboarding

    We’ll help you learn everything you need to know about E.ON and your new working environment – making your start at E.ON easy.