Network Support Engineer

Test Triangle; Dublin; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Test Triangle is seeking an experienced Infrastructure, Network & Azure Consultant in Ireland to enhance resilience and capability across Azure, VMware, Windows Server and hybrid infrastructure. You will work with ICT staff on incident response, security, and running both on-premises and cloud components to reduce single points of failure.

The role emphasizes knowledge transfer, documentation, and gradual capability uplift within a hybrid operating model.

Qualifications

• Azure infrastructure administration and architecture.
• VMware administration and Windows Server administration.
• LAN/WAN technologies and network security.
• Active Directory and identity services.
• Backup and disaster recovery planning.
• Infrastructure monitoring and incident management.
• Knowledge transfer and technical documentation.
• PowerShell and Microsoft 365 experience.

Responsibilities

• Provide operational cover and technical support for critical infrastructure.
• Support Azure, VMware, Windows Server and network services.
• Improve documentation and runbooks; transfer knowledge to ICT staff.
• Identify risks, implement resilience, and support changes.
• Assist with incident management and service restoration.

Job description

Location: Dublin 1, Ireland (Hybrid working Model – 2-3 days per week onsite)

Start Date: Mid-October
Contract Duration: This is a full-time contract position for an initial period of 35 weeks (approximately 173 working days).

Subject to business requirements and contract extension, the engagement may be extended to 46 weeks (approximately 230 working days).

Role Overview

The organisation is seeking an experienced Infrastructure, Network & Azure Consultant to provide specialist technical capability and operational resilience within the ICT Infrastructure & Networks function.

The primary purpose of the role is to reduce the organisation's current dependency on a limited number of infrastructure specialists and provide additional capability across Azure, VMware, Windows Server, networking, infrastructure security, backup/recovery and hybrid infrastructure.

The consultant will work alongside existing ICT staff to:

• Provide operational cover and technical support for critical infrastructure services.
  
• Reduce key-person and single-point-of-failure risks.
  
• Support the operation and development of the organisation's Azure and hybrid infrastructure.
  
• Provide specialist technical expertise for complex incidents and infrastructure changes.
  
• Improve infrastructure documentation and operational procedures.
  
• Transfer knowledge and capability to ICT staff.
  
• Identify infrastructure risks, dependencies and opportunities for improvement.
  
• Support the transition towards the organisation's future ICT Target Operating Model.
  

The role is therefore both operational and developmental, with a strong emphasis on resilience, knowledge transfer and sustainable capability

Scope of Services

The successful consultant will be expected to provide services across the following areas.

Provide technical support and advice covering

• Azure Backup and recovery.
  
• Azure security configuration.
  
• Azure identity and access dependencies.
  
• Infrastructure performance and optimisation.
  
• Azure architecture and resilience.
  
• Azure cost and resource optimisation where appropriate.
  

The consultant should be capable of diagnosing complex Azure infrastructure issues and recommending appropriate solutions.

B. VMware and On-Premises Infrastructure

Provide specialist support for the existing on-premises infrastructure environment, including:

• VMware infrastructure.
  
• Windows Server.
  
• Virtual machines.
  
• Active Directory and related infrastructure services.
  
• DNS/DHCP and core infrastructure services.
  
• Server performance and capacity.
  
• Storage infrastructure.
  
• Backup and recovery.
  
• Infrastructure monitoring.
  

The consultant will be expected to support the transition and appropriate integration between on-premises and Azure environments.

C. Network Infrastructure

Provide technical support and expertise covering:

• LAN/WAN infrastructure.
  
• Routing and switching.
  
• Firewalls and network security.
  
• VPN and remote connectivity.
  
• Wireless infrastructure where applicable.
  
• Network monitoring and troubleshooting.
  
• Network resilience and redundancy.
  
• Performance and capacity analysis.
  

The consultant should be capable of investigating complex network incidents and working with third-party network/service providers where required.

3. Operational Support

The consultant will provide additional technical capacity for the operation of ICT infrastructure services.

This may include:

• Investigating and resolving complex infrastructure incidents.
  
• Supporting service restoration.
  
• Supporting planned maintenance.
  
• Supporting patching and infrastructure upgrades.
  
• Monitoring infrastructure health.
  
• Supporting backup and recovery activities.
  
• Assisting with infrastructure changes.
  
• Providing technical escalation support.
  
• Supporting major incidents where infrastructure expertise is required.
  

The consultant will work within the organisation's existing IT service management, change management, incident management and security processes.

4. Infrastructure Resilience and Risk Reduction

A key objective of the engagement is to reduce infrastructure operational risk.

The consultant will:

• Identify single points of failure.
  
• Assess infrastructure resilience.
  
• Identify undocumented or poorly documented infrastructure components.
  
• Review operational processes.
  
• Identify areas of technical debt.
  
• Recommend improvements to resilience and recoverability.
  
• Support implementation of agreed improvements where appropriate.
  

Particular attention should be given to reducing the organisation's reliance on individual staff members for critical technical knowledge.

5. Documentation and Knowledge Transfer

Knowledge transfer is a mandatory requirement of the engagement.

The consultant will be expected to work collaboratively with ICT staff and not operate as an isolated technical resource.

The consultant will:

• Update inaccurate or incomplete documentation.
  
• Create missing documentation for critical infrastructure.
  
• Document infrastructure architecture and dependencies.
  
• Develop operational runbooks.
  
• Document key administrative procedures.
  
• Document troubleshooting and recovery procedures.
  
• Conduct structured knowledge-transfer sessions.
  
• Demonstrate critical procedures to relevant ICT staff.
  
• Ensure knowledge is transferred before completion of the engagement.
  

Documentation should be maintained in the organisation's approved documentation repositories and in formats that can be maintained by ICT staff after the consultancy ends.

6. Disaster Recovery and Business Continuity

The consultant will support the review and improvement of infrastructure recovery capability, including:

• Identification of critical infrastructure services.
  
• Review of backup arrangements.
  
• Review of recovery procedures.
  
• Identification of recovery dependencies.
  
• Support for disaster recovery testing.
  
• Identification of gaps in recovery capability.
  
• Recommendations for improving infrastructure resilience.
  
• Documentation of recovery procedures.
  

7. Cyber Security

The consultant will work closely with the ICT cyber-security function and relevant managed service providers to ensure infrastructure is operated securely.

Activities may include:

• Infrastructure security hardening.
  
• Patch management support.
  
• Vulnerability remediation.
  
• Secure configuration.
  
• Privileged access considerations.
  
• Network security.
  
• Azure security configuration.
  
• Support for cyber-security remediation activities.
  
• Support for investigation of infrastructure-related security events.
  

The consultant will be expected to operate in accordance with the organisation's security policies and applicable regulatory requirements.

8. Project and Change Support

The consultant may be required to provide infrastructure expertise to ICT projects and programmes.

This may include:

• Technical assessment.
  
• Solution implementation.
  
• Migration activities.
  
• Network changes.
  
• Server migrations.
  
• Technical testing.
  
• Post-implementation support.
  

The consultant will coordinate changes through the organisation's established change-management processes.

9. Future ICT Operating Model

The consultant may also be required to provide technical input into the development of the future ICT operating model.

This could include providing an assessment of:

• Current infrastructure capability.
  
• Technical skills and capacity.
  
• Infrastructure support requirements.
  
• Network capability requirements.
  
• Opportunities for automation.
  
• Opportunities for managed services.
  
• Infrastructure service management requirements.
  

The consultant will not determine the future organisational structure but will provide objective technical evidence and recommendations to inform the ICT Review and Target Operating Model

Requirements

Mandatory Requirements (Pass / Fail)

Candidates MUST meet ALL of the following:

Experience: It is a mandatory requirement, that the resources proposed has the equivalent of grade level 2 (Intermediate)

Availability: Must be available to start from Mid-October 2026.

Qualifications: It is a mandatory requirement, that the Resources proposed hold the following qualifications or equivalents:

• Azure infrastructure administration and architecture.
• VMware administration.
• Windows Server administration.
• LAN/WAN technologies.
• Firewalls and network security.
• Active Directory.
• Backup and disaster recovery.
• Infrastructure monitoring.
• Troubleshooting complex infrastructure incidents.
• Hybrid cloud environments.
• Infrastructure security.
• Change and incident management.
• Technical documentation.
• Knowledge transfer.

Experience with:

• PowerShell.
• Microsoft 365.

English Language Proficiency (MANDATORY):

• CEFR C2 Proficiency/Mastery (or equivalent)
• If there is no certificate, fluency will be assessed at presentation stage

The following non-exhaustive list of Key Deliverables, are applicable to this Role.

1. Infrastructure current-state assessment.

2. Infrastructure risk and dependency assessment.

6. Infrastructure architecture and dependency maps.

7. Operational runbooks and procedures.

8. Backup and recovery documentation.

9. Disaster recovery recommendations.

12. Identification of technical debt and improvement opportunities.

13. Recommendations for future infrastructure capability.

14. End-of-engagement handover and transition report.

The precise deliverables and priorities will be agreed at mobilisation based on the organisation's existing environment and immediate operational requirements.

Expected Outcomes

At the conclusion of the engagement, the organisation should have:

Reduced operational risk

The dependency on a single infrastructure resource should be materially reduced.

Improved knowledge resilience

Critical infrastructure knowledge should be distributed across the ICT team rather than concentrated with one individual.

Improved documentation

Critical infrastructure, dependencies and operational procedures should be documented and accessible.

The organisation should have greater understanding, resilience and operational capability across its Azure environment.

Improved infrastructure resilience

Identified infrastructure risks and single points of failure should have been assessed and, where practicable, addressed.

Improved recovery capability

Critical infrastructure recovery procedures should be documented and tested where appropriate.

The successful supplier must demonstrate how the proposed consultant will reduce key-person dependency and leave a sustainable increase in organisational capability. Knowledge transfer, documentation and handover are therefore core deliverables of this engagement and not optional additional services.

The following Experience/Competencies/Skillsets are applicable to this Role.

• (Networking): Experience managing enterprise routing, switching, and firewall infrastructures. (200 marks)
• (Infrastructure): Proven experience administering enterprise Windows infrastructure, storage arrays, and directory services (Active Directory / Entra ID). (200 marks)
• (Azure Cloud): Experience of configuring and troubleshooting cloud-native environments, specifically Azure Virtual Networks (VNets), Hub-Spoke topologies, ExpressRoute/VPN Gateways, and Azure Network (300 marks)
• Azure infrastructure administration and architecture.
• VMware administration.
• Enterprise networking.
• Firewalls and network security.
• Backup and disaster recovery.
• Troubleshooting complex infrastructure incidents.
• Hybrid cloud environments.
• Infrastructure security.
• Change and incident management.
• Technical documentation.
• Experience with:
• Microsoft Intune.
• Enterprise backup platforms.
• Public-sector or regulated environments.
• NIS2/security compliance requirements.

Required Professional Experience

• At least 5 years' relevant professional experience in infrastructure engineering/consultancy, preferably in complex enterprise environments.
• Demonstrable experience managing hybrid Azure/on-premises environments.
• Demonstrable experience supporting enterprise networks.
• Experience resolving complex infrastructure incidents.
• Experience documenting complex technical environments.

The consultant should demonstrate substantial practical experience in: