Java Software Developer (f/m/d) Communication Platform

At IONOS, the leading European provider of cloud infrastructure, cloud services and hosting services, you will work together with a wide range of teams. We are characterized by open structures, a friendly working culture and flat hierarchies with a strong team spirit. We firmly believe that work and fun are compatible, and offer you the right environment for this. Our constant growth means that we are always looking for new colleagues. Become part of IONOS and grow with us.

We build and operate the Hosting Communication Platform (HCP) and are currently developing the new Marketing Hub for the entire IONOS Group. Our microservice-based system enriches, generates, and delivers customer communications across email, SMS, push notifications, and letters. As a product-focused team, we are responsible for the evolution of our platform, the rollout across all IONOS brands, and the delivery of our new Marketing Hub ecosystem.

Tasks

• You will develop robust backend services using Java with Spring Boot and play a key role in evolving the platform and rolling it out for new brands.
• You will collaborate closely with other development teams and bring new ideas to life with a pragmatic mindset.
• You will contribute to technical design and review processes, helping us keep the platform stable and performant with your experience.
• You have knowledge of frontend technologies like React to further develop our Marketing Hub.
• Optional: Do you have experience with PHP? Our communication editor is currently PHP-based. In parallel, we are working on new modules for our Marketing Hub using React.

Qualifications

• You have solid experience in developing with Java and Spring Boot, and you’re comfortable working with APIs, distributed systems, and microservices.
• You thrive in a dynamic and open team environment, turning small ideas into meaningful features – always with the customer in mind.
• You write code that is clean, efficient, and reliable – but you’re also pragmatic when perfection isn’t possible.
• You embrace agile methodologies and enjoy collaborating with others. Communicating in English and optionally German is something you’re comfortable with.
• You’re able to understand different requirements and develop effective solutions. You work efficiently and take responsibility for your results.
• You're someone who’s interested in data and keen to measure the success of your implementations shortly after deployment.

Benefits

• Hybrid working model.
• Flexible working hours through trust-based working hours.
• At some locations a subsidized canteen and various free drinks.
• Modern office space with very good transport connections.
• Various employee discounts for activities and products.
• Employee events such as summer and winter parties, as well as workshops.
• Numerous training and development opportunities.
• Various health offers, such as sports and health courses.

Job info

Location: Karlsruhe

Type: Full-time

Category: Software Development

Work experience: Professionals

Reference ID: 1637

About IONOS

IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a 'one-stop shop' for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve.

We value diversity and welcome all applications - regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.

IONOS SE

Recruiting Team IONOS

Hinterm Hauptbahnhof 3-5

D-76135 Karlsruhe

[email protected]