Infrastructure & Security Engineer

Oritain
London

Infrastructure & Security Engineer

London / Hybrid (3 days per week)

Oritain builds technology that proves trust and transparency in global supply chains. We apply data engineering and AI to problems with real human and environmental impact, helping protect people from exploitation and enabling brands to stand behind what they sell.

As we scale, secure and reliable infrastructure is critical to everything we do.

We’re a global team across London, Auckland, Singapore and Washington D.C.

The Role

This is a hands‑on individual contributor role owning Oritain’s core infrastructure and security capabilities.

You’ll design, build and operate secure cloud, identity and network services while strengthening our security posture and compliance maturity. This is not an advisory role — you’ll be directly responsible for delivery, operations and outcomes.

You’re joining at an important point, with active ISO 27001 renewal, Cyber Essentials certification, and alignment to NIST and CMMC, supported by modern tooling (Vanta). You’ll play a key role in keeping infrastructure practical, secure and scalable.

You’ll also help shape the secure adoption of AI tooling across the organisation, ensuring it’s governed, compliant and genuinely useful.

You’ll report to the Head of IT & Security and work closely with Engineering, Service Desk and the wider business.

What You’ll Do

  • 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

Skills & Experience

Essential

  • 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

Desirable

  • Zero Trust or advanced security monitoring experience

  • Infrastructure or security automation experience

  • Exposure to enterprise AI tooling

  • Relevant Microsoft, Azure or security certifications

Company Benefits

  • 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

Posted 2026-04-25

Recommended Jobs

A&E Registrar - Barts Health NHS Trust

Pulse
London

Location: Central London (Major NHS Trust) Contract Type: Locum / Ongoing Hours: Full rota or ad-hoc shifts – Days, Lates, Nights available Rate: Competitive hourly rates (PAYE) About…

View Details
Posted 2025-11-12

Bartender (Full & Part Time) OTE 19 POUNDS

London Bridge Rooftop
London

Who are we? London Bridge Rooftop is a 240-capacity outdoor bar across from the Shard with top-notch views of London, cocktails, pints and fantastic food! We love our drinks and like to have fun ma…

View Details
Posted 2026-03-21

VAT Supervisor

Chingford, Greater London

Our client is seeking to recruit a VAT supervisor to manage the VAT for a varied and interesting client base. This leading firm of chartered accountants provides accountancy, financial advisory, tax,…

View Details
Posted 2025-12-12

Year 4 Teacher - Outstanding School - Kingston - January...

Marchant Recruitment
Kingston upon Thames, Greater London

An excellent opportunity has arisen for a passionate Year 4 Teacher to join an Outstanding School in Kingston from January 2026 . This Full-Time Year 4 Teacher role is perfect for an ambitious…

View Details
Posted 2025-10-07

Assistant Finance Officer - Secondary School - Kensington...

Marchant Recruitment
London

Location: Kensington and Chelsea, West London Start Date: January 2026 Salary: Support staff pay scale, dependent on experience A highly organised secondary school in Kensington and Chelse…

View Details
Posted 2025-12-19

Assc Dir Mgr-DevOps

Moody's
London

At Moody's, we unite the brightest minds to turn today’s risks into tomorrow’s opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they are…

View Details
Posted 2026-05-30

Teacher of Mathematics

Teaching Vacancies
Bromley, Greater London

What skills and experience we're looking for We are looking for an exceptional Mathematics Teacher with KS5 experience to join us at Harris Academy Orpington. In a role that is open to ECTs and …

View Details
Posted 2026-06-03

KS2 Teacher - Good School - Streatham - January 2026 Start

Marchant Recruitment
London

A vibrant primary school in Streatham is seeking a motivated KS2 Teacher to join their dedicated team from January 2026 . This Good-rated school prides itself on creating a stimulating and inc…

View Details
Posted 2025-10-09

Senior Finance Analyst (FP&A)

Michael Page
London

Broad remit spanning budgeting, forecasting, valuation, capital allocation and scenario analysis Build and maintain integrated financial reporting models consolidating business plans for each busi…

View Details
Posted 2026-04-24

Fire Systems Engineer (Fire Alarms, Fire Extinguishers & Lighting)

Get Staff
London

Fire Systems Engineer (Fire Alarms, Fire Extinguishers & Emergency Lighting) - London - Up To £45k Basic Salary Per Annum Fire Systems Engineer (Fire Alarms, Fire Extinguishers & Emergency Lighting) P…

View Details
Posted 2025-12-15