Sr. Network Infrastructure Engineer

Posted Yesterday
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Chicago, IL, USA
In-Office
Senior level
Information Technology
The Role
Design, deploy, configure, and troubleshoot multi-vendor network and server infrastructure. Manage VMware and Hyper-V virtualization, Cisco and Palo Alto devices, implement security best practices, resolve performance issues, produce documentation, and support incident response and infrastructure improvements.
Summary Generated by Built In
Senior Engineer – Networking & Server Infrastructure
Remote within Chicago, IL
4-month contract

We are seeking a seasoned Senior Engineer with deep expertise in networking, server infrastructure, and virtualization technologies to support a critical 4-month project. The ideal candidate will have hands-on experience with VMware and Hyper-V environments, as well as extensive knowledge of Cisco and Palo Alto Networks solutions, including firewalls and advanced security appliances. This role is fully remote and open to candidates located within the United States.
Responsibilities:
  • Design, deploy, configure, and troubleshoot networking and server infrastructure across multi-vendor environments.
  • Manage and optimize virtualization platforms (VMware vSphere, Hyper-V), including VM provisioning, performance tuning, and upgrades.
  • Install, configure, and support Cisco network devices (switches, routers, firewalls) and Palo Alto firewalls/security appliances.
  • Analyze and resolve complex network, server, and virtualization performance issues.
  • Implement network security best practices, firewall rules, VPNs, and segmentation strategies.
  • Work closely with cross-functional IT teams to deliver infrastructure solutions and support project goals.
  • Create and maintain technical documentation, diagrams, and operational procedures.
  • Participate in incident response, root cause analysis, and contribute to proactive infrastructure improvements.
Requirements:
  • 7+ years of experience in networking and server engineering roles.
  • Advanced expertise in VMware vSphere and Microsoft Hyper-V environments.
  • Strong hands-on experience with Cisco networking (routers, switches, firewalls).
  • Deep working knowledge of Palo Alto Networks firewalls and security products.
  • Solid understanding of network security, VLANs, VPN, and routing protocols.
  • Familiarity with Windows and Linux server administration.
  • Proven ability to troubleshoot and resolve complex infrastructure issues in enterprise environments.
  • Excellent communication skills and ability to work effectively in a remote, collaborative setting.
  • Relevant certifications (CCNP, PCNSE, VCP, or similar) are a strong plus.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

Skills Required

  • 7+ years of experience in networking and server engineering
  • Advanced expertise in VMware vSphere
  • Advanced expertise in Microsoft Hyper-V
  • Hands-on experience with Cisco networking (routers, switches, firewalls)
  • Deep working knowledge of Palo Alto Networks firewalls and security products
  • Understanding of network security, VLANs, VPN, and routing protocols
  • Familiarity with Windows and Linux server administration
  • Proven ability to troubleshoot and resolve complex infrastructure issues
  • Excellent communication skills and ability to work effectively remotely
  • Relevant certifications (CCNP, PCNSE, VCP, or similar)
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The Company
HQ: Luanda
27 Employees
Year Founded: 2018

What We Do

The ASCENDING team commits to delivering scalable and high-available cloud solutions to clients. We use advanced technology to measure the effectiveness of your current IT infrastructure. Then we help our clients migrate to the cloud and modernize their IT infrastructure.

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