Logo United Internet AG

Network Engineer - Datacenter Infrastructure & Automation

New

Job

  • Level
    Experienced
  • Location
    Karlsruhe
  • Working Model
    Hybrid, Onsite
  • Job Field
    IT, Network
  • Employment Type
    Full Time
  • Contract Type
    Permanent employment

Job Summary

In this role, you will develop high-performance datacenter network architectures, automate their operations using Ansible and Terraform, and collaborate closely with internal teams on technical solutions.

Job Technologies

Your role in the team

  • 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.

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Our expectations of you

Education

  • 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:

Qualifications

  • Strong knowledge of protocols and technologies such as IEEE 802.1Q, BGP, IS-IS, VRF, EVPN, VXLAN, firewalling, overlay, and tunneling architectures.
  • 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.

Experience

  • Experience with datacenter-grade network components. Preferably Juniper but also Arista, Cisco, or similar vendors.
  • Bonus: Experience with Juniper Apstra, Cisco ACI, Arista EVPN, or VMware NSX is a plus.

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What we offer

  • 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.

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Benefits

Work-Life-Integration

Health, Fitness & Fun

Food & Drink

Topics You Will Work On

Job Locations

  • Location Karlsruhe

    Baden-Württemberg

    Germany

About Your Employer

United Internet AG

United Internet AG

As the leading provider of communication solutions in Germany, we offer our users a safe and reliable way to communicate with our strong brands: 1&1, GMX, WEB.DE, and mail.com—despite handling 500 million incoming emails every day!

Description

  • Company Type
    Established Company
  • Working Model
    Full Remote, Hybrid, Onsite
  • Industry
    Internet, IT, Telecommunication

Employer reviews

by devworkplaces.com

Total

(1 Review)
3.4
  • Career Growth

    3.2
  • Engineering

    3.3
  • Workingconditions

    3.8
  • Culture

    3.2
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Logo United Internet AG

Network Engineer - Datacenter Infrastructure & Automation

Location
Karlsruhe
Working Model
Hybrid, Onsite
Diversity
Open for all genders
English Only
English only required

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