Senior Software Developer Backend (f/m/d)

at subsidary 1&1 Mail & Media Applications SE in Karlsruhe
Full-time | Permanent | Professionals
Reference ID: M-135

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About us

With our strong brands GMX, WEB.DE and mail.com and over 43 million active users, we are the leading email and communications platform in Germany, Austria and Switzerland. From this strong market position, services and apps are developed that simplify users' digital lives - from office tools and cloud solutions to personal ID management.

Your Tasks

Are you passionate about backend software development? Do you love to advance your area and take your colleagues along with you? Java is your expertise and you want to develop for more than 43 million customers? Shape the digital future with us! 1&1 Mail & Media reaches millions of users every day with innovative solutions through our strong brands GMX, WEB.DE and mail.com. We are looking for a Senior Software Developer Backend / Fullstack (f/m/d) who shares our vision and wants to contribute to the continuous improvement of our products.

• You will play a key role in working on central backend services that cover configuration management, client application tunnelling, notifications (SSE or push) and the management of behavioral settings, among other things.
• As a senior developer in the team, you will be responsible for the conception, design, and further development of new services in Java and Spring Boot. You have the experience and ability to design new services from scratch and provide clear direction to advanced developers to ensure the success of the services.
• You plan and implement distributed systems as well as optimisations and implementations of CI/CD pipelines.
• Through close collaboration with frontend developers and your flexibility to support frontend topics, e.g. in the development of logging and measurement libraries or components according to the design catalogue, you will maintain an overview of the overall context.

We Appreciate

As a backend/fullstack developer your passion is backend, but you also have an open ear for front-end topics? You like to work in a dynamic team with plenty of room for creativity? You are passionate about professional and high-quality software development? Then apply now and become part of our innovative team! We offer creative freedom and value a working environment based on respect, attentiveness and collegial interaction. For best chances, you bring the following:

• You already have several years of experience as a senior software developer with Java, especially in the backend area.
• You are not an architect, but you have architectural understanding and experience in designing new systems, e.g. in the context of central services for configuration management, tunneling, notifications or behaviour management.
• Your expertise in distributed systems and modern DevOps tools (Kubernetes, CI/CD) is pronounced.
• You also have experience with databases (primarily Postgres) and messaging systems (Kafka).
• Thanks to your broad and long-standing experience as a Java developer, you have the ability to take on responsibility and projects, from conception to implementation.

What else we would like to tell you

• Our corporate culture: „You“ culture and no dress code, flat hierarchies, open and transparent communication
• Individual development opportunities: diverse training courses, e-learning and internal communities, language courses, mentoring
• Events: Slack Days, open source projects, meet-ups
• Relocation service: support with the relocation to Germany
• Benefits and additional services: company pension scheme, capital-forming benefits, discounts on own products, job ticket, bike leasing, corporate benefits portal
• Attractive working conditions: 30 days holiday, hybrid working, full-time and part-time arrangements, free choice between Linux, Mac or Windows
• Social: team events, summer and winter parties, family and care service, sports and fitness programmes, subsidised canteen, free fruit and drinks, health courses
• Topics that are also important to us: Sustainability, diversity and our values and leadership principles - find out more on our website mail-and-media.com

apply online now