Sr. Network Administrator

Keka Technologies Private Limited; Illinois; On-site; USD 110,000 - 150,000; Full time

Job summary

OculusIT in the United States, Illinois, is seeking a Senior Network Administrator to design, implement, and optimize enterprise network infrastructure across data centers, cloud-connected environments, and customer sites. This role provides technical leadership for network projects and security solutions.

The ideal candidate possesses strong expertise in Cisco and Fortinet technologies, network security, migrations, and enterprise networking best practices, with a proven ability to ensure the

Qualifications

• Bachelor’s degree in IT, CS, or engineering.
• 5+ years of enterprise network administration and engineering.
• Hands-on experience with Cisco routing & switching, wireless, Fortinet SD-WAN, VPNs, and security solutions.
• Experience leading network projects and migrations.

Responsibilities

• Design, deploy, and maintain enterprise network infrastructure across data centers and cloud-connected environments.
• Lead network projects from planning through implementation and transition to operations.
• Configure FortiGate firewalls, VPNs, and IPSec/SSL solutions.
• Monitor performance and ensure high availability and security of critical systems.

Skills

Cisco Routing & Switching

Cisco Wireless

Fortinet Firewalls & SD-WAN

VPN Technologies

Network Security

Education

Bachelor’s degree in information technology, Computer Science, Engineering, or a related field

Tools

Cisco Nexus Dashboard

Cisco DNA Center

Cisco Nexus MSO

Job description

At OculusIT, we help colleges and universities use technology to operate with confidence, serve their communities, and build a better future. Our work supports the systems higher education depends on every day — from cybersecurity, cloud, and infrastructure to ERP, data, and managed services.

We’re looking for people who want their work to matter, who take ownership, solve problems with clarity, and bring a team-first mindset to complex technology environments. If you’re energized by meaningful work, continuous learning, and serving institutions with purpose, you’ll find a strong fit here.

As a global organization, our values guide how we work:

• Trust is Built Through Action — We communicate openly, follow through, and earn trust through reliability.
• We Own What We Do — We take responsibility for outcomes and stay with problems until they’re solved.
• Distill Clarity from Complexity — We make complicated challenges easier to understand, decide, and act on.
• The Power of We — We collaborate across teams, roles, and perspectives to create better solutions.
• Stay Ahead Always — We stay curious, keep learning, and apply new ideas to improve how we serve.
• Work With Empathy — We listen, respect context, and remember there are people behind every system and decision.

If this sounds like the way you want to work, we’d be excited to meet you.

Job Summary:

The Senior Network Administrator is responsible for the design, implementation, administration, maintenance, and optimization of enterprise network infrastructure across data centers, cloud-connected environments, and customer sites. This role provides technical leadership for network projects, security solutions, data center technologies, SD-WAN, wireless infrastructure, and next-generation networking platforms.

The ideal candidate possesses strong expertise in Cisco and Fortinet technologies, network security, infrastructure migrations, and enterprise networking best practices, with a proven ability to ensure the high availability, performance, and security of critical business systems

Key Responsibilities:

Network Infrastructure Management

• Design, deploy, and maintain enterprise network infrastructure, including routers, switches, wireless networks, and data center environments.
• Manage and support LAN, WAN, VPN, SD-WAN, and wireless network solutions.
• Monitor network performance, capacity, and availability while implementing improvements as needed.
• Perform hardware lifecycle management, including EOL/EOS device replacement and upgrades.

Network Security & Fortinet Administration

• Configure, deploy, and maintain FortiGate firewalls, security policies, NAT, VPNs, and Unified Threat Management (UTM) capabilities.
• Implement and manage IPSec and SSL VPN solutions for secure remote connectivity.
• Conduct firewall rule reviews, security audits, and optimization activities.
• Support network access control and identity management integrations.

Cisco Data Center & Enterprise Networking

• Implement and support Cisco ACI environments, including Single Pod, Multi-Pod, and Multi-Site architectures.
• Manage and support Cisco Nexus Dashboard and Multi-Site Orchestrator (MSO) deployments.
• Perform firmware upgrades, hardware replacements, and fabric enhancements.
• Support Cisco DNA Center (DNAC), Cisco SDA, Cisco ISE, and wireless infrastructure deployments.

Project Delivery & Implementation

• Lead network projects from planning through implementation and transition to operations.
• Develop High-Level Designs (HLDs), Low‑Level Designs (LLDs), implementation plans, and technical documentation.
• Conduct technical assessments and recommend infrastructure improvements.Coordinate migrations, upgrades, and transformation initiatives across customer environments.

Operations & Support

• Troubleshoot complex network issues and provide escalation support for critical incidents.
• Collaborate with internal and external stakeholders to ensure timely issue resolution and service continuity.
• Ensure compliance with organizational change management processes.
• Maintain network diagrams, SOPs, and operational documentation.

Required Qualifications:

• Bachelor’s degree in information technology, Computer Science, Engineering, or a related field.
• 5+ years of progressive experience in enterprise network administration, implementation, and engineering.
• Strong hands-on experience with:
• Cisco Routing & Switching
• Cisco Wireless (WLC & Access Points)
• Fortinet Firewalls & SD-WAN
• VPN Technologies
• Network Security Solutions
• Experience managing network infrastructure projects and migrations.