Security-Focused Senior Infrastructure Engineer (SC/DV)

iO Associates; Greater London; Hybrid; GBP 69,000 - 115,000; Full time

Job summary

iO Associates is seeking an experienced SC/DV-cleared Senior Infrastructure Engineer for a London-based hybrid role. You will design, implement and support secure Microsoft infrastructure across complex enterprise environments, focusing on identity, security, automation and operations.

Active clearance is required, with 2–3 days onsite per week. The contract spans 6 months with a daily rate up to £625 outside IR35.

Qualifications

• Experience with secure Microsoft infrastructure in enterprise environments.
• Ability to design, implement and support secure Microsoft infrastructure technologies.
• Knowledge of identity, authentication and PAM concepts.
• Experience with security monitoring, logs and SIEM.
• Experience across full project lifecycle from design to service transition.

Responsibilities

• Design, implement and support secure Microsoft infrastructure across complex environments.
• Hands-on role focusing on Microsoft infrastructure, identity, security, automation and operational support.
• Involvement across full lifecycle of technical projects.

Skills

Active Directory administration

PKI/certificate services

PowerShell automation

Ansible automation

Identity management

Security monitoring/SIEM

Exchange/Exchange Online

Infrastructure troubleshooting

Technical documentation

Lifecycle delivery

Tools

Python

CyberArk PAM

Job description

iO Associates is seeking an experienced SC/DV-cleared Senior Infrastructure Engineer for a London-based hybrid role. You will design, implement and support secure Microsoft infrastructure across complex enterprise environments, focusing on identity, security, automation and operations.

Active clearance is required, with 2–3 days onsite per week. The contract spans 6 months with a daily rate up to £625 outside IR35.