Senior Network & Security Analyst
Offer summary

(Summary generated by AI based on the full job description)

The project involves network infrastructure and security management across multiple sites, utilizing Cisco switching, routing, Palo Alto firewalls and Microsoft 365. Responsibilities include designing, deploying, and supporting wired and wireless networks, managing VPNs, monitoring performance, and responding to security incidents. The role also supports Avaya and 3CX telephony, process automation, and team mentoring. Knowledge of network protocols and security tools is required.

newquick applyyou can start ASAP

Senior Network & Security Analyst

Company: Guest Tek

from: 28 August 2026
to: 27 September 2026
salary not specifiedcontract of employment (full-time)
Offer parameters
level:senior
working mode:hybrid
Warszawa, Ochota
Warszawa, OchotaAleje Jerozolimskie 81View on map

Requirements

Expected technologies

Cisco
Palo Alto
Microsoft 365
Windows Server
Active Directory
Entra ID

Optional technologies

Microsoft Azure
Microsoft Security
Avaya
3CX
Microsoft Intune
Microsoft Defender

Our requirements

  • Five or more years of progressive enterprise networking experience, including hands-on configuration and troubleshooting.
  • Strong experience with Cisco switching, routing, and wireless technologies.
  • Strong experience administering Palo Alto firewalls and secure connectivity.
  • Demonstrated knowledge of TCP/IP, VLANs, routing, NAT, DNS, DHCP, QoS, network segmentation, IPsec, SSL VPN, and site-to-site tunnels.
  • Hands-on experience administering Microsoft 365 and identity services in a business environment.
  • Experience supporting Windows Server, Active Directory, Entra ID, and hybrid infrastructure.
  • Strong incident troubleshooting, root cause analysis, change management, and technical documentation skills.
  • Ability to manage competing priorities and work independently while collaborating effectively with team members and vendors.
  • Security-minded, analytical, and disciplined in troubleshooting and change execution.
  • Clear and confident communicator who can translate technical issues into business impact.
  • Strong ownership, follow-through, and commitment to service reliability.
  • Collaborative mentor with a practical, continuous-improvement mindset.
  • Calm and organized when responding to incidents or competing priorities.

Optional

  • Cisco CCNA or CCNP certification.
  • Palo Alto Networks PCNSA or PCNSE certification.
  • Microsoft Azure, Security, or Microsoft 365 certification.
  • Experience with Avaya and/or 3CX voice platforms.
  • Experience with Microsoft Intune, Defender, SIEM/SOC operations, vulnerability management, SD-WAN, PowerShell, or network automation.
  • ITIL or formal project management experience.
  • Experience supporting corporate web platforms, including website hosting, DNS management, SSL certificates, access controls, security, vendor coordination, and ongoing maintenance.

Your responsibilities

  • Design, deploy, configure, and maintain enterprise wired and wireless networks across multiple locations.
  • Administer Cisco switching, routing, and wireless platforms, including VLANs, trunks, routing, spanning tree, QoS, DNS, and DHCP dependencies.
  • Configure, support, and troubleshoot site-to-site and remote-access VPNs, IPsec tunnels, network segmentation, NAT, and secure connectivity with vendors and partners.
  • Monitor availability, performance, and capacity; identify root causes and implement durable corrective actions.
  • Maintain current network diagrams, configuration standards, inventories, backup configurations, and recovery procedures.
  • Administer Palo Alto firewalls, including security policies, NAT rules, objects, zones, threat-prevention profiles, URL filtering, logging, and VPN services.
  • Review firewall and network changes for security, business impact, testing, rollback, and documentation requirements.
  • Investigate network and security events, coordinate containment and remediation, and contribute to root cause analysis and lessons learned.
  • Support vulnerability remediation, secure configuration baselines, patching, security audits, and continuous improvement initiatives.
  • Partner with internal and external security resources to strengthen monitoring, incident response, and access controls.
  • Administer and support Microsoft 365 services, including Entra ID, Exchange Online, Teams, SharePoint Online, OneDrive, Intune, Conditional Access, and Microsoft Defender capabilities.
  • Support identity, authentication, device compliance, endpoint protection, and hybrid infrastructure integrations.
  • Use automation and scripting, where practical, to increase consistency, visibility, and operational efficiency.
  • Support Avaya and 3CX telephony environments, including extensions, call routing, SIP services, voicemail, and connectivity troubleshooting.
  • Diagnose voice quality, network path, firewall, and carrier-related issues in coordination with service providers.
  • Lead infrastructure, network, and security projects from planning through implementation and operational handover.
  • Act as an escalation point for complex incidents and provide clear technical guidance during service disruptions.
  • Mentor junior team members and promote consistent troubleshooting, documentation, and change practices.
  • Communicate technical risks, options, and recommendations clearly to technical and non-technical stakeholders.

About the project

The Senior Network & Security Analyst is responsible for the design, implementation, administration, and support of the organization's network, security, and communications infrastructure. The role acts as a senior technical escalation point and leads work across enterprise networking, firewall security, Microsoft 365, secure remote connectivity, and voice platforms in a multi-site environment.

This is how we organize our work

This is how we work

in house

Working expectations

  • Participate in planned after-hours maintenance and an on-call rotation, as required.
  • Follow change management, security, documentation, and escalation procedures.
  • Perform other IT-related duties consistent with the scope of the position.
Company

Development opportunities we offer

  • external training
  • intracompany training
  • substantive support from technological leaders

Recruitment stages

  • 1.
    Two recruitment stages

Guest Tek

GuestTek is a global leader in broadband technology and interactive solutions for the hospitality industry. Since 1997, GuestTek is the hospitality industry’s most complete IP-based service provider, offering customers superior service and broad product lines tailored to meet the needs of both select and full-service hotels. We operate from 22 countries in 18 global offices to provide our service for our clients in 89 countries, in more than 3900 hotels every day.

This is how we work

Senior Network & Security Analyst
I apply to:
Guest Tek
Warszawa, Ochota

Need more information?

  • Make sure the body of the offer doesn’t already include what you’re looking for.
  • Ask a question if you need more information you’re interested in.
  • We’ll forward your question to the employer and aim to provide a response within 3 business days.

Share this offer