Sr. Network Administrator N 4B

Sr. Network Administrator N

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Job Description

Senior Analyst,

Enterprise Network and Firewall

Services

Network operations | Firewall security | Incident response | Continuous improvement

POSITION SUMMARY

The Senior Analyst, Enterprise Network and Firewall Services is a senior technical individual contributor

responsible for operating, securing, supporting and continuously improving the organization's enterprise

network and firewall environment.

This role provides hands-on expertise across network connectivity, firewalls, Secure Access Service Edge

(SASE), segmentation, remote access, routing, switching, wireless, cloud networking and network monitoring.

The Senior Analyst supports day-to-day operations, resolves complex incidents, implements approved

changes, remediates security risks and contributes to network modernization and cybersecurity initiatives.

The successful candidate will have strong enterprise networking and network-security experience, sound

operational judgment and the ability to work effectively with cybersecurity, infrastructure, cloud, field

technology, application and business teams. This role also provides technical guidance and mentorship to

other analysts but does not have formal people-management responsibilities.

Key Responsibilities

Network and Firewall Operations

- Support the day-to-day operation, maintenance, availability, performance and security of the enterprise network.

- Administer and support technologies including:

- Check Point firewalls and associated security services

- Cato Networks Secure Access Service Edge

- Zero Networks microsegmentation

- Enterprise routing and switching

- Wireless networking and network access control

- Internet, WAN, data-centre, cloud, branch and remote-user connectivity

- Secure remote access and zero-trust network access

- Network monitoring, logging, observability and performance-management platforms

- Monitor network health, availability, capacity, performance and security events.

- Investigate and resolve network connectivity, latency, routing, firewall, wireless, remote-access and

application-communication issues.

- Maintain firewall policies, network objects, access rules, security zones, routing configurations, VPNs and related controls.

- Review and process firewall and network-access requests in accordance with security standards, least-privilege principles

and change-management requirements.

- Support network segmentation and microsegmentation controls across on-premises, cloud, branch and operational

technology environments.

- Maintain accurate device configurations, network records, diagrams, inventories and operational documentation.

- Participate in scheduled maintenance, after-hours changes, incident response and on-call support as required.

SENIOR ANALYST ENTERPRISE NETWORK AND FIREWALL SERVICES

Job Description Page 2

Incident, Problem and Escalation Management

- Serve as an escalation point for complex network and firewall incidents.

- Lead or support technical troubleshooting during service interruptions, cybersecurity events and high-priority business

escalations.

- Coordinate with internal teams, vendors, carriers and service providers to restore services and resolve technical issues.

- Perform root-cause analysis and document findings, contributing factors, corrective actions and preventive

recommendations.

- Identify recurring incidents and recommend technical, procedural, monitoring or automation-based improvements.

- Escalate significant operational, security, capacity, lifecycle or resiliency risks to appropriate technical and management

stakeholders.

- Communicate incident status, technical findings, business impacts and recovery progress clearly to technical and

non-technical audiences.

- Ensure operational follow-up actions are documented, assigned, tracked and completed.

Network Security and Risk Management

- Implement and maintain network-security controls that protect enterprise users, systems, applications, cloud environments

and business locations.

- Apply zero-trust, least-privilege, defence-in-depth and segmentation principles to network and firewall operations.

- Partner with cybersecurity teams to investigate threats, review security events and remediate vulnerabilities or

configuration risks.

- Review firewall policies and network-access rules to identify obsolete, overly permissive, duplicate or unsupported

configurations.

- Support periodic firewall recertification, security-control validation, access reviews and configuration assessments.

- Respond to vulnerability findings, audit observations, penetration-test results and security recommendations affecting the

network environment.

- Ensure network changes follow established security standards, technical requirements and approval processes.

- Support logging and monitoring requirements for firewalls, remote access, network infrastructure and security services.

- Maintain awareness of current cybersecurity threats, vendor advisories, vulnerabilities and network-security practices.

Change and Configuration Management

- Plan, document, test, implement and validate network and firewall changes.

- Develop implementation plans that include prerequisites, dependencies, testing, communication, risk assessment and

rollback procedures.

- Participate in change reviews and clearly communicate technical risks and potential business impacts.

- Ensure configuration changes are completed according to approved designs, security standards and operational

procedures.

- Validate services following changes and coordinate remediation or rollback when expected outcomes are not achieved.

- Maintain configuration backups, standard templates, baseline configurations and version-controlled documentation.

- Identify opportunities to standardize configurations and reduce unnecessary variation across the environment.

- Support lifecycle activities, including upgrades, patches, migrations, hardware replacement and retirement of unsupported

technologies.

Engineering and Project Delivery

- Participate in network, firewall, cloud, cybersecurity, infrastructure and business technology projects.

- Translate approved architectures and high-level designs into detailed configurations, implementation plans and operational

procedures.

- Configure and deploy network and security technologies in accordance with established standards.

- Support new site deployments, cloud connectivity, application onboarding, network segmentation, data-centre initiatives

and disaster-recovery capabilities.

- Conduct technical testing and validation for new technologies, integrations, configurations and service improvements.

SENIOR