Network Engineer

Job#: 3012335

Job Description:
Position: Senior Network Engineer

We are seeking a highly skilled Network Engineer to support a large-scale, globally distributed private cloud hosting environment designed for enterprise and tactical applications. This solution leverages a hyperconverged infrastructure and Software Defined Data Center (SDDC) architecture built on VMware technologies.

The environment currently utilizes VMware products such as ESXi, vSAN, NSX, vCloud Foundation, and Aria Automation to deliver secure, scalable, and resilient hosting capabilities across multiple sites worldwide.
Key Responsibilities

• Collaborate with engineering teams to design, implement, and maintain the network architecture for a multi-tenant private cloud environment.
• Develop, deploy, and maintain Infrastructure as Code (IaC) for network provisioning and sustainment.
• Support application onboarding by provisioning network foundations for customer environments using automation tools.
• Perform daily network administration, including patching, upgrades, and configuration management.
• Monitor network health and utilization, proactively identifying and resolving performance or capacity issues.
• Implement network hardening measures aligned with industry best practices and cybersecurity compliance requirements.
• Troubleshoot and perform root cause analysis for complex network issues within the hosting platform.
• Create and maintain detailed documentation, including network diagrams, configurations, and standard operating procedures.
• Provide on-call support for after-hours production incidents.
• Recommend improvements to enhance security, scalability, and performance across network environments.

Required Qualifications

• 5+ years of experience as a senior-level network engineer in enterprise environments.
• Expertise in VMware NSX design, deployment, and management.
• Strong proficiency in LAN/WAN networking, routing, switching, and network security.
• Hands-on experience with Palo Alto Firewalls, Cisco Routers, and Cisco Nexus & Catalyst switches.
• Familiarity with VMware technologies: NSX, vSAN, vSphere, ESXi, Aria Automation.
• Ability to troubleshoot complex issues across network and virtualization layers.
• Experience with automation tools such as Ansible or Terraform, and scripting languages (Python, PowerShell).
• Solid understanding of TCP/IP, BGP, OSPF, VLANs, and MPLS.
• Strong verbal and written communication skills.
• Proven ability to work across the full technology stack: network, storage, server, and applications.

Desired Skills

• Knowledge of DoD STIGs and vulnerability management processes.
• Experience with container platforms and orchestration (e.g., Kubernetes).
• Understanding of Kubernetes networking (CNI) and storage (CSI).
• Familiarity with Helm charts, container image management, and GitOps tools (Argo CD, Flux).

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.