C++ Backend Developer (f/m/d)
1&1 Mail & Media Applications SE | IT Software Development | Karlsruhe / Berlin / Munich | Permanent | Full-time | Experienced professionals | Reference ID: 278
- Your tasks
Are you passionate about modern C++ software development? Shape the Future of Email Platforms with Cutting-Edge Technology! Do you thrive on building high-quality, scalable backend systems? Are you eager to work in a dynamic, agile, cross-functional team? If so, join us at WEB.DE and GMX—two of Germany’s leading email providers—and help revolutionize how millions manage their email every day. Our Mail Store Development team is constantly innovating new features to enhance user experience. Ready to be part of this exciting journey?
- You develop and maintain high-performance C++ services powering our mail store platform, optimized for deployment on dedicated hardware and Kubernetes clusters.
- You implement new features across automated email processing systems, driving projects from initial concept through to final release.
- You create architecture spikes and proofs of concept for complex, high-risk components while evaluating emerging technologies.
- You collaborate closely with QA engineers, spam experts, system architects, and operations teams, contributing your expertise and innovative ideas.
- You stay ahead of the curve by continuously learning new technologies and representing the team at internal and external tech conferences.
Our benefits
Lived corporate culture
Transparency, open communication and short decision-making processes
Wide range of further training
E-learning, seminars, conferences and mentoring
Renowned TEC-Campus
Conferences, lecture series, courses, open source projects, community meetings, user groups
Active health care
Sports and fitness classes, lectures, discounts at fitness and health centers, fresh fruit and drinks for free
Mobility
Generous subsidy for job bike leasing and the job ticket
Flexible working models
Home office, mobile office, flexible working hours, trust-based working time arrangements
Financial benefits
Company pension scheme, discounts on our products and various leisure activities
Legendary events
Summer and winter parties, additional workshops and team events
- Your profile
Do you want to develop cutting-edge mail system features with a strong focus on quality? Are you a hands-on team player who values collaboration and continuous learning? If this sounds like you, we’re excited to meet you! Here’s what we’re looking for:
- Strong proficiency in modern C++ with solid object-oriented programming skills, including experience with STL and Boost libraries; familiarity with web technologies such as JSON and RESTful HTTP is a plus.
- Experience working in Linux development and server environments, ideally for high-load, distributed systems.
- Expertise in containerized microservices and cloud platform deployments, preferably Kubernetes.
- Good understanding of automated software quality assurance practices, including unit testing, performance testing, and continuous integration/delivery within agile workflows.
- Ideally, experience with IETF RFC mail standards; fluent English and intermediate German language skills complete your profile.
- Our benefits in detail
- Our corporate culture: 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.
We are brand. With GMX, WEB.DE and mail.com and over 42 million active users, we are the leading email and communication platform in Germany, Austria and Switzerland.
We are future. Our services and apps simplify digital life from cloud storage to news and ID management.
You are at home. Your digital passion finds a professional home with us. Your strength makes us stronger, your expertise complements our ideas, your success becomes visible. Together we shape the digital future.
Diversity enriches. Different cultures, nationalities, genders, age groups, sexual orientations and religions as well as people with disabilities - we desire diversity and encourage it. Because only teams that reflect all facets of society offer the best framework conditions for creativity and make a company productive and distinctive. We value diversity and welcome all applications.
Apply now
We look forward to receiving your application, including your salary expectations and the reference number given above. Please use our online application form. If you have any questions about the position or the application process, please send us an email.
1&1 Mail & Media Applications SE
Recruiting & Candidate Management
Brauerstraße 48
D-76135 Karlsruhe
We are awarded!
