hirly

1 & 1 Mail & Media Applications SE

Network Engineer – Datacenter Infrastructure & Automation (f/m/d)

Karlsruhe, Baden, Baden-Württemberg, Germany

See how you match this job — and similar ones. Free.

Upload your resume and hirly scores it against this role at 1 & 1 Mail & Media Applications SE first, then against similar open jobs, and shows where you fit and why.

PDF or DOCX, up to 12MB. No sign-up to see your matches.

Get past the screening software and onto a recruiter's desk

hirly rewrites your resume for this job — matching the keywords and skills in the posting, moving your most relevant experience to the top, and writing a cover letter to fit. About 30 seconds.

  • Keywords matched to this posting
  • Fit score before you apply
  • Cover letter included
Tailor my resume for this job →

Apply from your AI assistant

Connect hirly to Claude and ask it to apply to this job. hirly tailors your resume, fills the employer’s form and asks before sending. ChatGPT: manual setup today.

Some employer sites stop an application at a CAPTCHA or sign-in and hand it back with a link. Applying needs a paid plan. Works with any assistant that supports MCP.

hirly's read of this role

Role family
Engineering
Seniority
Mid level
Country
DE
Work mode
On-site / unstated
First seen by hirly
15 Oct 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

# Your Tasks

Are you passionate about shaping the future of data center networks with modern technologies and automation? As a Network Engineer, you’ll operate and evolve our next-generation datacenter network systems—powering millions of users across WEB.DE and GMX. Join a team that’s building a European alternative to email and cloud services, committed to privacy, digital sovereignty, and operating under European law.

Do you enjoy working with cutting-edge network technologies? Are you excited by automation and Infrastructure-as-Code? Want to help build secure, scalable infrastructure for millions of users?

  • You design, implement, and operate highly available datacenter network architectures.
  • You automate network operations using tools like Ansible, Terraform, and Python.
  • You collaborate closely with internal stakeholders to develop and implement technical solutions.
  • You help ensure 24/7 operational continuity as part of a shared team responsibility.

# Your Profile

Do you have a degree in a technical field and several years of experience in building and operating complex network infrastructures? Are you confident working in agile, international teams and solving challenging networking problems? We believe the following skills and experiences will help you to be successful in this role:

  • Strong knowledge of protocols and technologies such as IEEE 802.1Q, BGP, IS-IS, VRF, EVPN, VXLAN, firewalling, overlay, and tunneling architectures.
  • Experience with datacenter-grade network components. Preferably Juniper but also Arista, Cisco, or similar vendors.
  • Proficiency in Linux-based systems and open-source routing/firewall components.
  • Skilled in designing large-scale network solutions, including proofs of concept and creating high-level/low-level documentation.
  • Bonus: Experience with Juniper Apstra, Cisco ACI, Arista EVPN, or VMware NSX is a plus.

# Our Benefits

🏢 Lived corporate culture : Flat hierarchies, a culture of respect and appreciation, signatories of the Diversity Charter, open communication, and no dress code.

🎓 Wide range of further training : Internal and external training opportunities, LinkedIn Learning, language courses, talent development programs, conferences, and mentoring.

💡 TEC-Campus : Free choice between Linux, Mac, or Windows, slack days, conferences, lecture series, courses, open-source projects, community meetups, and user groups.

❤️ Active health care: Wellpass, health days, family & care support services, discounts at fitness centers, mental health first responder, fresh fruit, and drinks for free.

🚝 Mobility : Subsidy for job bike leasing, job ticket, and relocation service if you live outside Germany.

💻 Flexible working models : Home office options, flexible working hours, and 30 days of vacation with the option for additional unpaid leave.

💰 Financial benefits : Corporate benefits, company pension scheme, capital-forming benefits, occupational disability insurance, and various partner discounts.

🎉 Events : Summer and winter parties, sports tournaments, and team events.

Original posting on 1 & 1 Mail & Media Applications SE's site ↗

Listed on hirly, a job board. hirly is not the employer: 1 & 1 Mail & Media Applications SE is hiring for this role.

Want this one?

Upload your resume and hirly rewrites it for this job and writes the cover letter — in about thirty seconds, before you sign up.

Tailor my resume for this job