Senior Network Administrator

Title:

Senior Network Administrator

KBR is a global provider of differentiated, professional services and technologies delivered across a wide government, defense and industrial base. Drawing from its rich 100-year history and culture of innovation and mission focus, KBR creates sustainable value by combining engineering, technical and scientific expertise with its full life cycle capabilities to help our clients meet their most pressing challenges today and into the future.

We deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than 80 countries and operations in over 29 countries. KBR is proud to work with its customers across the globe to provide technology, value-added services, and long-term operations and maintenance services to ensure consistent delivery with predictable results. At KBR, We Deliver.

KBR is looking for a Senior Network Administrator.

The Senior Network Administrator is responsible for the administration, maintenance, security, and operational reliability of enterprise network infrastructure supporting KBR operations. The role provides advanced technical administration across network, connectivity, security, and related infrastructure platforms, ensuring the availability, performance, and resilience of critical services.

The position requires deep technical knowledge of enterprise networking technologies, the ability to resolve complex operational issues, and the capability to work independently with minimal guidance. The role contributes directly to service stability, operational excellence, and infrastructure modernization initiatives while acting as a technical resource for colleagues within the team.

This role does not include supervisory or people management accountability.

Key Responsibilities

Network Administration

• Administer enterprise network infrastructure, including:
• LAN, WAN, wireless, and data centre networking platforms
• Routing and switching technologies
• Software-defined networking and SD-WAN environments
• Network access control and identity-aware networking services
• Install, configure, maintain, and upgrade network infrastructure in accordance with operational standards.
• Perform routine lifecycle management activities, including software updates, hardware maintenance, and technology refresh activities.
• Maintain accurate network documentation, configuration standards, and operational records.

Network Security & Connectivity

• Administer and support enterprise network security technologies, including firewalls, VPN services, and secure remote-access solutions.
• Maintain network segmentation, access control, and secure connectivity frameworks.
• Support vulnerability remediation and implementation of network security controls.
• Ensure network services comply with organisational security standards and governance requirements.

Data Centre & Cloud Networking

• Support enterprise data centre networking environments and associated connectivity services.
• Administer load balancing and application delivery platforms.
• Support hybrid cloud and cloud networking services.
• Maintain reliable connectivity between on-premises infrastructure, cloud platforms, remote locations, and hosted environments.
• Support network architecture and capacity growth initiatives.

Infrastructure Integration

• Collaborate with server, storage, backup, cloud, and cybersecurity teams to ensure reliable infrastructure operations.
• Support infrastructure services where networking dependencies exist.
• Maintain a working understanding of compute, virtualisation, storage, and application dependencies to support effective troubleshooting and escalation.
• Contribute to infrastructure availability, resilience, and recovery initiatives.

Operational Support

• Monitor network health, availability, performance, and capacity using established operational tools and procedures.
• Diagnose and resolve complex networking and infrastructure incidents.
• Support incident, problem, and change management processes.
• Participate in major incident investigations and root-cause analysis activities.
• Maintain technical documentation, operational runbooks, and support procedures.

Recovery, Resilience & Security

• Support network-related disaster recovery and resilience initiatives.
• Participate in infrastructure recovery testing and operational readiness activities.
• Maintain network configurations and controls that support business continuity objectives.
• Ensure network services remain compliant with organisational security and audit requirements.

Collaboration & Technical Contribution

• Work independently on assigned systems and operational activities.
• Collaborate with related IT teams, service providers, and project teams to resolve technical issues.
• Act as a technical resource and provide guidance to colleagues with less experience.
• Contribute to operational improvements, technical standards, and infrastructure modernization initiatives.
• Support project delivery and technology implementation activities as required.

Qualifications, Skills and Experience

Technical Skills & Experience

• Strong hands-on experience supporting enterprise networking environments.
• Experience with routing, switching, network segmentation, and secure connectivity technologies.
• Experience with network access control, identity-aware networking, and enterprise security platforms.
• Experience supporting firewall technologies, VPN solutions, and secure remote access services.
• Experience with load balancing and application delivery technologies.
• Experience supporting cloud networking and hybrid connectivity solutions.
• Experience supporting enterprise infrastructure environments including Windows, Linux, and virtualisation platforms.
• Familiarity with structured IT operational environments and service management processes.
• Experience troubleshooting complex networking and infrastructure-related issues.

Professional Capability

• Able to work independently with minimal supervision.
• Demonstrated ability to analyse and resolve complex technical problems.
• Exercises sound technical judgement using multiple sources of information.
• Strong operational discipline and attention to detail.
• Effective written and verbal communication skills.
• Ability to collaborate effectively across technical and business teams.

Education & Qualifications

• Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related field with relevant experience.

OR

• Equivalent combination of related training and professional experience.

KBR Company Information

When you become part of the KBR team, your opportunities are endless. Through collaboration with our customers, we’re defining tomorrow’s challenges, then providing the solutions and services to overcome those challenges, always maintaining our commitment to total safety and reliability.

At KBR, we partner with government and industry clients to provide purposeful and comprehensive solutions with an emphasis on efficiency and safety. With a full portfolio of services, proprietary technologies and expertise, our employees are ready to handle projects and missions throughout their entire lifecycle, from planning and design to sustainability and maintenance. Whether at the bottom of the ocean or in outer space, our clients trust us to deliver the impossible on a daily basis.

Working at KBR means being rewarded for your contributions. In addition to competitive benefits and professional development, our people are empowered to use all their potential, creating meaningful change for themselves and our clients. We attract the best minds in the world because our expertise thrives on creativity, resourcefulness and collaboration. That is how we supply our clients with cutting‑edge solutions and services.

As the needs of the world change, we’re ready to respond and guide the way forward with strategic, sustainable, and technological advancements grounded in more than a century of practical application and execution.

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