Remote Senior Network Engineer - Juniper & Global Backbone

Sii Sp. z o.o.; Toruń; Remote; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Private healthcare

Remote work

Career growth

Job summary

Sii Sp. z o.o. in Toruń is seeking a Senior Network Administrator to oversee lifecycle management of production network platforms across global POPs and data centers.

You will lead upgrade initiatives, collaborate with vendors, and drive operational excellence in a large-scale infrastructure environment. The role requires strong experience with major vendors (Cisco/Juniper/Arista), proficiency in BGP and IPv4/IPv6, and advanced English.

Qualifications

• Minimum 5 years of experience in a production network environment.
• Hands-on experience with networking platforms such as Cisco, Juniper, or Arista.
• Proficiency in core networking protocols including BGP, OSPF/ISIS, and IPv4/IPv6.
• Experience in large-scale network operations and executing network change operations.
• Ability to manage vendor escalations and coordinate support resolutions.
• Advanced level of English.

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 to validate hardware, configurations, and automation tooling.
• Collaborate with network engineers and vendors to investigate issues and document resolutions.
• Support cross-functional initiatives for scalability, compliance, and operational consistency.
• Contribute to runbooks and procedures for network changes and lifecycle activities.

Skills

BGP

IPv4/IPv6

Network Administration

Juniper

Cisco

Arista

Ansible

Python

Splunk

Network Infrastructure

Communication skills

Job description

Sii Sp. z o.o. in Toruń is seeking a Senior Network Administrator to oversee lifecycle management of production network platforms across global POPs and data centers.

You will lead upgrade initiatives, collaborate with vendors, and drive operational excellence in a large-scale infrastructure environment. The role requires strong experience with major vendors (Cisco/Juniper/Arista), proficiency in BGP and IPv4/IPv6, and advanced English.