Senior Network Reliability Engineer; m​/w​/d

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Senior Network Reliability Engineer (m/w/d) - Berlin, Germany

We are working with a global leader in secure digital infrastructure, trusted by enterprise and government clients to deliver high-availability services across Europe. As a Senior Network Reliability Engineer, you’ll play a strategic role in designing, automating, and operating the robust network fabrics that keep dozens of high-spec data centres running smoothly.

This is a senior hands-on engineering position for someone who thrives in complex, large-scale environments, with the freedom to innovate, automate, and influence future-proof network architectures.

Responsibilities

• Lead the design, optimisation, and automation of scalable data centre networks.
• Develop advanced tools and frameworks for network automation and provisioning.
• Research, evaluate, and drive adoption of new technologies to enhance network performance, reliability, and security.
• Act as a senior technical partner for other Dev Ops teams (Kubernetes, Storage, Compute) to ensure seamless integration across infrastructure layers.
• Provide advanced troubleshooting and escalation support for critical network issues.
• Participate in and contribute to the improvement of the on-call rotation for mission-critical environments.
• Mentor junior engineers and contribute to the team’s technical roadmap.

Required Skills & Experience

• Extensive experience with Linux systems in production environments.
• Proven expertise in network automation/development, including strong Ansible, Python, Bash, iptables, tcpdump, and git skills.
• Deep practical knowledge of Juniper devices (EX, QFX, MX, SRX) and routing protocols such as BGP, OSPF, and related technologies.
• Experience working in large-scale, high-availability network environments.
• Fluent in German

Nice to have:

• Practical experience with infrastructure automation tools (Ansible, Salt, Terraform) and network APIs (RESTCONF, NETCONF).
• Knowledge of virtualised and cloud-native environments (VMWare, Open Stack, Kubernetes) and underlying components (KVM, Open vSwitch, Linux bridges).

• Seniority level
  
  Mid-Senior level

• Employment type
  
  Full-time

• Job function
  
  Information Technology
• Industries
  
  IT Services and IT Consulting

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