Zscaler Administrator - Application Packaging

KBR, Inc; Leatherhead; Remote; GBP 60,000 - 90,000; Full time

Job summary

KBR is seeking an experienced Zscaler Administrator to join our UK team, supporting and enhancing our Zero Trust security platform. You will maintain and evolve ZIA and ZPA environments to deliver secure access to applications, cloud services, and internet resources.

In this remote-based UK role, you will collaborate with cybersecurity, cloud, network, and application teams, implement automation, and contribute to continuous service improvement while navigating a large-scale, regulated

Qualifications

• Hands-on experience with ZIA and ZPA.
• Experience managing policies, authentication and access controls.
• Troubleshooting across access, identity, networking and cloud connectivity.

Responsibilities

• Administer and optimise ZIA and ZPA platforms.
• Manage policies, authentication, application segmentation and traffic forwarding.
• Support Zscaler Client Connector, App Connectors and cloud connectivity services.
• Collaborate with cybersecurity, cloud, network, infrastructure and app teams to resolve issues.
• Onboard and segment business applications in ZPA.
• Monitor platform performance, security events and user experience.
• Contribute to automation using PowerShell, Python, Terraform and APIs.
• Assist with incidents, remediation, risk assessments and service improvement.
• Produce technical documentation, operational reporting and metrics.

Skills

Zscaler (ZIA/ZPA)

Policy management

Troubleshooting

Azure networking

Windows Server AD DNS

Networking fundamentals

ITSM

Job description

Title: Zscaler Administrator - Application Packaging

About KBR

At KBR, we deliver innovative science, technology, engineering and mission-critical solutions that help governments and organisations achieve their most important objectives. Our people tackle complex challenges every day, making a real difference on a global scale. We're looking for an experienced Zscaler Administrator to join our growing UK team and play a key role in supporting and enhancing our enterprise Zero Trust security platform. If you're passionate about secure access technologies, cloud networking, cybersecurity, and solving complex technical challenges, this is an exciting opportunity to work within a large-scale, highly regulated environment while enjoying the flexibility of a remote role.

What You'll Be Doing

As our Zscaler Administrator, you'll be responsible for maintaining, optimising, and evolving our Zscaler environment to ensure secure, reliable access to applications, cloud services, and internet resources across the business.

• Administer and optimise Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) platforms
• Manage policies, access controls, application segments, authentication integrations, and traffic forwarding
• Support and troubleshoot Zscaler Client Connector, App Connectors, and cloud-based connectivity services
• Work closely with cybersecurity, cloud, network, infrastructure, and application teams to resolve complex issues
• Support onboarding and segmentation of business applications within the ZPA environment
• Monitor platform performance, availability, security events, and user experience
• Contribute to automation initiatives using technologies such as PowerShell, Python, Terraform, and APIs
• Assist with incident response, vulnerability remediation, risk assessments, and continuous service improvement
• Produce technical documentation, operational reporting, and platform metrics

What We’re Looking For

• Strong hands-on experience with Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA)
• Experience managing Zscaler policies, authentication, application segmentation, and secure access controls
• Proven troubleshooting skills across access, identity, networking, and cloud connectivity issues
• Good knowledge of Microsoft Azure networking and infrastructure services
• Experience supporting Windows Server, Active Directory, DNS, certificates, and authentication services
• A solid understanding of enterprise networking concepts including routing, firewalls, proxies, VPNs, and network security
• Experience working within structured IT service management and change control environments
• Strong communication skills and the ability to work effectively with both technical and non-technical stakeholders

Desirable Experience

• Microsoft Entra ID, Conditional Access, MFA, and SSO
• Microsoft Sentinel, Defender, Splunk, or SIEM platforms
• Zscaler Digital Experience (ZDX)
• Cloud security and Zero Trust architectures
• PowerShell, Python, Terraform, or automation tooling
• Palo Alto, Cisco, F5, or similar enterprise networking technologies
• Microsoft Intune and endpoint security solutions
• Supporting highly regulated or security-conscious environments

Certifications

• Relevant certifications are desirable, including: Zscaler Certified Administrator (ZCA)
• Zscaler Certified Engineer (ZCE)
• Microsoft Azure certifications
• Security+ or CCNA
• Equivalent industry-recognised qualifications

Location & Security Requirements

• Remote-based role within the United Kingdom
• Occasional travel to our Surrey-area office may be required
• UK citizenship is required
• Candidates must be eligible to obtain or hold BPSS clearance

Why KBR?

At KBR, our people are at the heart of everything we do. We are committed to creating an inclusive environment where individuals can Belong, Connect and Grow. You'll have the opportunity to work alongside talented professionals on meaningful projects while developing your career in a supportive and forward-thinking organisation.

KBR - Delivering Solutions, Changing the World. KBR brings together the best and brightest to deliver science, technology and engineering solutions that help governments and companies around the world accomplish their most critical missions and objectives. In everything we do, we are guided by our ONE KBR Values:

• We Value Our People – We create diverse, inclusive environments in which each person can feel safe, respected and valued, and where everyone has opportunities to grow and reach their full potential.
• We Deliver – We are uncompromising in our commitment to deliver innovative, high-quality, technology-led solutions for our customers and exceptional, sustainable value for all our stakeholders.
• We Are People of Integrity – We value honesty, trust, courage, fairness, prudence and tenacity. We believe doing what’s right for the planet, the communities where we work, and our people is good for business.
• We Empower – We empower our people with a shared purpose, the right tools and the supportive culture they need to be proactive decision-makers, to be adaptive to change, and to succeed.
• We Are a Team of Teams – We have a will to succeed, but we value the achievements of our team of teams over individual accomplishments. Our collective focus makes us a better, stronger, more effective company. We have also embedded environmental, social and governance (ESG) principles in every business operation and corporate function. Not only are we committed to operating safely, sustainably and equitably, but we are also committed to using our capabilities and expertise to help our customers accomplish their sustainability goals.

Worldwide, KBR employs a diverse workforce approximately 29,000 people strong, with customers in more than 80 countries and operations in 40 countries. At KBR, We Deliver.