Senior Network Engineer - Juniper/Arista, Remote

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

Benefits offered by this job

Great Place to Work

Profit sharing

Private healthcare

Remote work option

Career growth & training

Job summary

Sii Sp. z o.o. in Lublin is seeking a Network Engineer with Juniper to manage production network platforms across global POPs and data centers. The role focuses on lifecycle management, device upgrades, and infrastructure reliability, with opportunities to work remotely.

You will collaborate with vendors and internal teams to resolve issues, implement changes, and document runbooks and processes. Advanced English is expected, and prior experience with Cisco/Juniper/Arista is required.

Qualifications

• Minimum 5 years of experience in a production network environment.
• Hands-on experience with Cisco, Juniper, or Arista.
• Proficiency with BGP, OSPF/ISIS, IPv4/IPv6.
• Experience managing vendor escalations and coordinating resolutions.
• Advanced level of English.

Responsibilities

• Lifecycle management for production network platforms across global POPs and data centers.
• Plan and execute fleet-wide network upgrade initiatives and readiness checks.
• Lead infrastructure rollout across global networks and backbone.
• Operate a dedicated lab to validate hardware and automation tooling.
• Collaborate with vendors and engineers to investigate issues and document resolutions.
• Support network scalability, compliance, and operational consistency.
• Develop runbooks and operational procedures for network changes.

Skills

Network Administration

Database Administration

BGP

IPv4/IPv6

Networking protocols

English proficiency

Tools

Cisco

Juniper

Arista

Ansible

Python

Job description

Sii Sp. z o.o. in Lublin is seeking a Network Engineer with Juniper to manage production network platforms across global POPs and data centers. The role focuses on lifecycle management, device upgrades, and infrastructure reliability, with opportunities to work remotely.

You will collaborate with vendors and internal teams to resolve issues, implement changes, and document runbooks and processes. Advanced English is expected, and prior experience with Cisco/Juniper/Arista is required.