Job description
Role: Senior Cloud & Infrastructure Engineer
Location: Aghalee (base location, occasional travel)
Salary: £45,000 - £55,000 per annum
About the Role
We're looking for a hands-on Senior Cloud & Infrastructure Engineer to take ownership of core infrastructure and lead cloud-first projects. You'll be the go-to escalation point for complex incidents, networking, and security, while delivering solutions across AWS and Microsoft 365 environments. This role combines deep troubleshooting expertise with project delivery and a strong focus on security-by-design.
Key Responsibilities
1. Design and operate secure AWS environments (EC2, VPC, IAM, Load Balancing, Auto Scaling)
2. Implement Microsoft Intune and Entra ID (Azure AD), including SSO and Conditional Access
3. Manage enterprise networking: VLANs, VPNs, firewalls, SD-WAN, and zero trust principles
4. Harden Windows Server and Active Directory environments
5. Support Microsoft 365 collaboration tools (SharePoint, OneDrive, Teams)
6. Deploy and maintain VoIP solutions and QoS for voice traffic
7. Own backup and disaster recovery strategies across on-prem and cloud
8. Act as L3 escalation for complex incidents and drive root cause analysis
9. Automate tasks using PowerShell and contribute to infrastructure-as-code initiatives
What We're Looking For
10. 5+ years' experience in enterprise IT with L3 support and networking responsibilities
11. Expertise in AWS (EC2, VPC, IAM), Windows Server/AD, Intune/Entra ID
12. Strong networking and security skills (routing, VPNs, firewalls, IDS/IPS)
13. Hands-on experience with VoIP deployments and Microsoft 365 administration
14. Solid understanding of cybersecurity best practices
15. Excellent troubleshooting and documentation skills
Desirable
16. AWS or Microsoft certifications
17. Networking/security certifications (, CompTIA Security+)
18. Familiarity with automation and scripting (PowerShell, Python)
Applicants must be based in Northern Ireland with full rights to work unrestricted.