Infrastructure & Security Engineer

Oritain

Infrastructure & Security Engineer at Oritain implementing secure cloud infrastructure and managing identity services. Collaborating with teams for compliance and proactive security operations.

Posted 4/25/2026full-timeLondon • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AzureCloudFirewalls

About the role

Key responsibilities & impact

Design, build and secure cloud and on‑prem infrastructure services
Own identity and access management using Microsoft Entra ID, Conditional Access and RBAC
Design and implement network segmentation, firewalls, VLANs and VPNs
Build and support SD‑WAN and site connectivity
Administer Azure networking (VNets, routing, NSGs, VPN/S2S gateways)
Lead incident response alongside our external SOC
Operate Microsoft security services including Defender and Sentinel
Manage vulnerability identification and remediation
Support security compliance activities using Vanta
Help deliver ISO 27001, Cyber Essentials, NIST and CMMC alignment
Secure and help govern AI tooling (e.g. Microsoft Copilot), including DLP and Purview controls
Apply automation and AI to improve infrastructure and security operations

Requirements

What you’ll need

Hands‑on infrastructure and security engineering experience
Strong knowledge of Microsoft Entra ID, Azure and Microsoft 365
Solid networking fundamentals (VLANs, firewalls, routing, VPNs)
Experience with Defender, Sentinel or similar security tooling
Exposure to security frameworks such as ISO 27001 or NIST
Comfortable owning delivery and working across technical and non‑technical teams
Zero Trust or advanced security monitoring experience (Desirable)
Infrastructure or security automation experience (Desirable)
Exposure to enterprise AI tooling (Desirable)
Relevant Microsoft, Azure or security certifications (Desirable)

Benefits

Comp & perks

Paid Leave- 35 days (inclusive of public holidays) + your birthday off
Volunteering Leave Allowance
Enhanced Parental Leave
Life Insurance
Healthcare Cash Plan
Employee Assistance Programme (EAP)
Pension
Monthly Wellbeing Allowance
Breakfast, Snacks, Friday lunch & Barista Coffee Machine in the office
Learning Portal with over 100,000 assets available to support professional development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

cloud infrastructureon-prem infrastructureidentity and access managementnetwork segmentationfirewallsVLANsVPNsAzure networkingvulnerability identificationsecurity automation

Soft Skills

incident responsedelivery ownershipcross-team collaboration

Certifications

ISO 27001Cyber EssentialsNISTCMMC