1&1 Mail & Media Applications SE

IT Security Engineer (f/m/d) - onsite or remote / home office

at subsidary 1&1 Mail & Media Applications SE in Karlsruhe or Munich
Full-time | Permanent | Graduates / Professionals
Reference ID: 3706


About us

With our strong brands GMX, WEB.DE and mail.com and over 42 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

Do you like to take over responsibility and your passion is IT Security? Are you eager to drive strategic topics and solve complex security challenges? Are you curious and continuously improving your technical and security know-how? Then we’re looking for you! Join our Security Engineering Team as IT Security Engineer and help us further improve the overall security level of Germany’s biggest mail and cloud providers WEB.DE and GMX.

  • You advise colleagues of all levels on topics around secure design, development and operation of products of WEB.DE, GMX and mail.com brands. You carry out threat analyses, penetration tests, supply chain audits, and architecture and code reviews.
  • You drive strategic initiatives like DevSecOps and Secure Product Lifecycle.
  • You create concepts and implement tools which sustainably improve our security level.
  • You prepare and hold security trainings and workshops. These are targeted at the members of our Security Champion community as well as on all kinds of engineers. You train them on concepts such as secure coding and threat modeling.
  • If necessary, you support fast resolution of security incidents by carrying out technical analyses like forensics or log analysis.

We Appreciate

Have you completed a technical degree or do you have comparable education? Do you have several years of experience with IT Security and were you already able to deliver strategic improvements in complicated situations? Are you able to grasp complicated concepts quickly and you’re continously searching for even better solutions? Do you appreciate hands-on work, are you a true team player, and do you value a dynamic complex environment? We’re eager to get your application!

  • You have a strong engineering mindset: you are a problem solver and continuous improver. You have both wide and deep general technical background and you’re well versed with topics like networking, protocols, operating systems, and distributed web applications.
  • You have experience with technical security audits of all kinds (white-box and black-box). Optimally, you’re also well connected to the international security community, e.g. due to conferences or your work on open source projects.
  • You are fluent with at least one programming language, e.g. JAVA, TypeScript or Python.
  • You understand the aspects of modern agile product development and you have hands-on experience with concepts and technologies like DevOps, CI/CD and Kubernetes. You always keep yourself up-to-date.
  • You’re a true team player, always leading by example. You’re comfortable with leading projects and stakeholders efficiently also in stressful situations.

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 2 days home office/week or near remote, 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

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.


1&1 Mail & Media Applications SE
Recruiting & Candidate Management

Brauerstraße 48
D-76135 Karlsruhe