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Sii Sp. z o.o.

Network Engineer with Juniper - large scale intrastructure (f/m/x)

Sii Sp. z o.o. Show all offers
B2B
Hybrid
Senior
Piła
Lublin
Toruń
Wrocław
+11
Expires Sep 24, 2026
24 days ago

In short

Network Engineer needed for lifecycle management, upgrades, and rollouts of global network platforms. Requires 5+ years experience, Cisco/Juniper/Arista, BGP/OSPF/IPv4/IPv6, English. B2B contract. Offers stability, profit sharing, benefits.

AI-written summary based on the listing content.

Technologies we use

About the project

Your responsibilities

  • Supporting lifecycle management for production network platforms, including hardware, software, firmware, and operating system versions across global POPs and data centers
  • Planning, coordinating, and executing fleet-wide network upgrade initiatives, ensuring device qualification and readiness checks are performed
  • Leading infrastructure rollout efforts across global POPs, data centers, and the backbone network
  • Operating a dedicated lab and test environment to validate hardware platforms, configurations, and automation tooling
  • Partnering with network engineers and vendors to investigate platform issues, manage support escalations, and document resolution paths
  • Collaborating cross-functionally to support network scalability, compliance, and operational consistency
  • Contributing to runbooks, process documentation, and operational procedures for network changes and lifecycle management activities

Our requirements

  • Minimum 5 years of experience in a production network environment with a focus on operational execution
  • Hands-on experience with networking platforms such as Cisco, Juniper, or Arista
  • Proficiency in core networking protocols, including BGP, OSPF/ISIS, and IPv4/IPv6
  • Solid understanding of large-scale network operations, including executing network change operations and software upgrades
  • Demonstrated ability to manage vendor escalations and coordinate support resolution
  • Advanced level of English

Optional

  • Strong organizational and execution skills with attention to detail
  • Effective cross-functional communication and collaboration skills
  • Scripting ability in Python or a similar language
  • Familiarity with network automation tools such as Ansible
  • Experience improving operational processes by reducing manual steps and increasing repeatability

What we offer

  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People
Published 2026-08-25
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