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Cybersecurity IT Support

Senior IT Support Engineer

Job in Aghalee, BT67, Northern Ireland, UK
Listing for: Hannon Transport Limited
Full Time position
Listed on 2025-12-30
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support
Salary/Wage Range or Industry Benchmark: 45000 - 55000 GBP Yearly GBP 45000.00 55000.00 YEAR
Job Description & How to Apply Below
Location: Aghalee

Job Information

Job Title

Senior IT Support Engineer

Department

IT

Reports To

IT Manager

Location

Aghalee (base location, travel expected)

Salary Range

£45k to £55k depending on experience

Job Purpose

Were seeking a hands-on Senior Networking & Support Engineer to lead complex incident resolution, own core infrastructure, and deliver cloud-first projects across AWS and Microsoft 365. Youll be our escalation point for networking/security, design and operate VPCs and IAM in AWS, implement Microsoft Intune/Entra  (including SSO) at scale, and harden Windows Server/AD environments. The ideal candidate blends deep troubleshooting with solid project delivery and security-by-design.

Duties

and Responsibilities Cloud (AWS)
  • Design, deploy, and operate EC2 workloads (Windows), Auto Scaling Groups, ALB/NLB, AMIs, and Systems Manager for patching and runbooks.
  • Build and Maintain secure VPC architectures (subnetting, routing, NAT/IGW, Security Groups/NACLs, VPC endpoints, hybrid VPN/Direct Connect).
  • Implement IAM roles, policies, instance profiles, and least-privilege RBAC; manage KMS for encryption at rest.
  • Configure Cloud Watch/Cloud Trail, metrics/alarms, centralised logging, and cost optimisation
  • Operate AWS Backup and snapshot policies; participate in DR planning and testing with defined RTO/RPO.
    • Microsoft Intune / Entra  (Azure AD) & SSO
  • Intune implementation:
    Windows Autopilot (Pre-provisioned/UGM), device enrolment (Azure AD Join/Hybrid), compliance policies, configuration profiles, baselines, and Endpoint Security (Bit Locker, Defender, ASR, Firewall).
  • Manage application lifecycle in Intune:
    Win
    32 packaging, LOB and Store apps, app protection policies (MAM), update rings/feature updates, and driver/firmware management.
  • Architect Conditional Access (MFA, risk-based, compliant-device, location/network filters), device compliance posture, and group-based targeting/assignments.
    • Networking & Security
  • Administer routing/switching (VLANs, STP, LACP), IPv4/IPv6, site-to-site/IPSec and SSL VPNs; DNS/DHCP, NTP, and network services resilience.
  • Configure next-gen firewalls, IDS/IPS, web filtering, content security, and remote access; manage SD-WAN where applicable.
  • Implement network segmentation, zero trust principles, and QoS especially for VoIP and latency-sensitive apps.
  • Manage PKI/certificates: CSR generation, issuance, renewal automation, and certificate lifecycle across servers, load balancers, and apps.
    • Windows Server, Active Directory & RDS
  • Support data integration and reporting tools to improve visibility across the supply chain
  • Ensure data accuracy and integrity in operational and customer-facing applications
    • Collaboration:

    Microsoft 365 (SharePoint/One Drive/Teams)
  • Govern SharePoint/One Drive permissions, sharing policies, sensitivity labels, and DLP/retention, support migrations and information architecture.
  • Operate Teams/Teams Phone interop with existing PBX/SBCs where needed.
    • Voice/Telephony (VoIP)
  • Deploy and support VoIP solutions: SIP trunks, SBCs, dial plans, call routing, E911/999 configuration, QoS tagging and monitoring.
    • Backup, DR & Security Operations
  • Own backup strategy (3-2-1/immutability) for onprem, cloud, and Microsoft 365; monitor job success and conduct restoration tests.
  • Coordinate vulnerability management and remediation (OS, apps, cloud); collaborate with SOC/MDR where applicable.
  • Maintain security incident runbooks, access reviews, and change control (CAB) with strong documentation.
    • Service Delivery & Support
  • Act as L3 escalation for complex incidents/problems; drive root cause analysis and permanent fixes.
  • Create high-quality documentation, runbooks, and userfacing knowledge base articles.
  • Automate routine tasks using Power Shell (and/or Python); contribute to CI/CD/IaC where appropriate.
    • Knowledge, skills and experience required Essential
    • Bachelors degree in Computer Science / IT (or equivalent experience).
    • 5+ years in enterprise IT with L3 support, networking, and systems administration responsibilities.
    • Proven expertise across: AWS (EC2, VPC, IAM, Load Balancing, Auto Scaling), Windows Server/AD, Intune/Entra  (including Conditional Access and Autopilot), and enterprise networking/security.
    • Hands-on experience with…
    Position Requirements
    10+ Years work experience
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