Remote Senior Network Administrator (Juniper & Global Ops)

Sii Poland; Rzeszów; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Regular integration events and trips

Centre of internal trainings

MySii app

Medical care

Job summary

Sii Poland is seeking an experienced Senior Network Administrator to manage lifecycle and support for production network platforms across global POPs, data centers, and backbone infrastructure. You will collaborate with network engineers and vendors to ensure operational excellence while driving upgrade initiatives.

The role offers the flexibility of remote work and requires strong English skills, 5+ years in production networks, and hands-on experience with Cisco/Juniper/Arista, BGP, and

Qualifications

• Minimum 5 years of experience in a production network environment focusing on operational execution.
• Strong hands-on experience with networking platforms such as Cisco, Juniper, or Arista.
• Proficiency with core networking protocols such as BGP, OSPF/ISIS, and IPv4/IPv6.

Responsibilities

• Support lifecycle management for production network platforms across global POPs and data centers.
• Plan, coordinate and execute fleet-wide network upgrade initiatives with readiness checks.
• Lead infrastructure rollout across global POPs, data centers, and backbone network.
• Operate a dedicated lab and test environment to validate hardware and configurations.
• Partner with network engineers and vendors to investigate platform issues and document resolutions.
• Collaborate cross-functionally to support network scalability, compliance, and operational consistency.
• Contribute to runbooks, process documentation, and network change lifecycle procedures.

Skills

Advanced English

Tools

Cisco/Juniper/Arista

Ansible

Python scripting

Job description

Sii Poland is seeking an experienced Senior Network Administrator to manage lifecycle and support for production network platforms across global POPs, data centers, and backbone infrastructure. You will collaborate with network engineers and vendors to ensure operational excellence while driving upgrade initiatives.

The role offers the flexibility of remote work and requires strong English skills, 5+ years in production networks, and hands-on experience with Cisco/Juniper/Arista, BGP, and