(Senior) Backend Developer (Java/Kotlin) (f/m/d)

E.ON One GmbH Unbefristet Vollzeit

We are E.ON One, a company part of the E.ON Group. Our mission is to enable the energy transition through digital solutions.

Our focus is to provide a complete combination of solutions to help our customers overcome the challenges of the energy transition.

Together with our ecosystem and network partners, we provide an extensive product portfolio adapted to the needs of diverse customer groups to help them increase efficiency and reduce costs in their grid connection, grid operations and energy management processes.

Do you want to join our team?

We are hiring for a (Senior) Backend Developer (Java / Kotlin) (f / m / d) to work in our Engineering team.

Tasks

Develop E.ON One's product platform using Kotlin and Spring, leveraging cloud-native technologies.

Work closely with developers, product managers, and architects to create software solutions that revolutionize the energy industry.

Design and implement scalable, maintainable backend services that integrate seamlessly with third-party services and APIs.

Participate in code reviews, offer constructive feedback, and continuously optimize application performance and security.

Qualifications

5+ years in software development with strong expertise in Java / Kotlin. Knowledge of Python and Go is a plus.

Proficient in developing modern backend services with the Spring framework and well-versed in API technologies (JSON, REST, HTTP, OIDC, gRPC).

Familiar with both SQL and NoSQL database technologies.

Experience with AWS, Azure, or Google Cloud and cloud native services.

Knowledgeable about best practices in software security.

Passionate about the energy domain and eager to contribute to the energy transition.

Comfortable working in a start-up-like environment, taking ownership of tasks, and communicating effectively.

Fluent skills in English; German and other languages are considered a plus.

Benefits

• Hybrid working hours model, 30 vacation days and time off on Christmas & New Year’s day
• Competitive salary with a bonus for achieved goals
• Extensive and individual training, in form of training courses, support programs and regular workshops
• Individual induction & onboarding
• Regular internal company- and team events
• Group accident insurance, international health insurance and company pension scheme
• Business trips on German rail (>

50km) in 1st class

• Depending on location : subsidized canteen and a fitness room
• Workation : Up to 20 days per year working from other EU countries and other selected countries

Company Culture

At E.ON One, our culture values respect, open feedback, and continuous learning. Each employee brings their unique strengths to the table, and we work together as One team to achieve our goals.

Our collaborative environment provides ample space to develop bold initiatives, grow personally and professionally, and take ownership of your work.

Knowledge and ideas flow freely in all directions. Together, we are shaping E.ON One and fulfilling our mission to provide digital solutions across the entire energy value chain.

For more information, check our website :