Staff Network Reliability Engineer (f/m/d)

IONOS SE; Karlsruhe; Hybrid; EUR 110.000 - 140.000; Vollzeit

Benefits dieser Stelle

Hybrid working model

Flexible working hours

Canteen subsidy

Excellent transport connections

Employee events and trainings

Zusammenfassung

IONOS SE is seeking a senior/staff-level engineer to manage large production networks across data centers. You will define health metrics, lead the hardest incidents, and partner with NRE Automation to automate routine tasks.

You will apply AI to operations, strengthen observability, and shape lifecycle, upgrade, and capacity practices while collaborating with cross-functional teams.

Qualifikationen

• Strong Linux fundamentals and network engineering background.
• Experience operating large-scale production networks in data centers.

Aufgaben

• Own reliability of data center networks and set SLOs.
• Lead major incident response and postmortems.
• Reduce toil via automation and pipelines.
• Apply AI to operations with safe judgment on AI output.
• Improve observability and change-management processes.
• Collaborate with provisioning for handovers.
• Cover on-call rotation.

Kenntnisse

Reliability mindset

Incident management

Observability

AI in operations

Team collaboration

Tools

Python

Ansible

GitLab

CI/CD

Jobbeschreibung

NRE Operations runs the data center networks for the entire IONOS group: the physical fabric and underlay, the SDN overlay, and the virtual network functions on top, across dozens of data centers. We are looking for a senior or staff-level engineer who operates large production networks with a reliability mindset. You define what "healthy" means, catch problems before customers do, lead the hardest incidents, and partner with NRE Automation to push routine operations toward zero manual steps. AI is central to how we work, both to make the network smarter and to make each engineer faster.

Tasks

• Own reliability of the physical fabric, SDN overlay, and virtual network functions across all IONOS data centers. Set service level objectives and drive down unplanned downtime.
• Lead incident response on major network incidents and run postmortems that produce lasting fixes.
• Remove toil through automation, working with NRE Automation on pipelines and tooling for lifecycle, patching, and service configuration.
• Apply AI to operations: anomaly detection, automated diagnosis, config generation and validation, and automated remediation, with the judgment to know when AI output is trustworthy.
• Strengthen observability so problems surface before they reach customers, and shape lifecycle, upgrade, change-management, and capacity practices.
• Collaborate with NRE Provisioning on clean handovers.
• Share the on-call rotation covering the above.

Qualifications

• Extensive hands-on experience operating large-scale production data center networks (5+ years for Senior, longer for Staff).
• Deep Layer 2 and Layer 3 knowledge: routing (BGP, OSPF) and VXLAN with BGP/EVPN.
• Multi-vendor operations across Juniper and Cisco; SONiC and Netbox familiarity is a plus.
• Strong Linux fundamentals and the toolkit that goes with them (bash, tcpdump, iptables, git).
• Network automation you have built, using Python with Ansible and CI/CD on GitLab.
• A reliability-engineering mindset: SLOs, observability, incident command, postmortems, designing out toil.
• Fluent, critical use of AI in daily engineering, plus a track record or credible ideas for applying AI to network operations.
• Fluent English for international teams; German is a plus. Ownership and a calm approach when things break.

Benefits

• Hybrid working model.
• Flexible working hours through trust-based working hours.
• At some locations a subsidized canteen and various free drinks.
• Modern office space with very good transport connections.
• Various employee discounts for activities and products.
• Employee events such as summer and winter parties, as well as workshops.
• Numerous training and development opportunities.
• Various health offers, such as sports and health courses.