IT Infrastructure and Security Engineer

Job Title: IT Infrastructure and Security Engineer

Reporting to: Information Security Manager

Location: Flexible

Hours of work: 09:00 – 17:30 or in line with business needs

The Role

As an experienced IT Infrastructure and Security Engineer, you will ensure the confidentiality and integrity of information stored on systems by engineering, implementing, verifying, monitoring, and reporting on security controls.

We need someone who is a doer and who is looking to get involved. We do not need a list of things we ‘should’ be doing; we need you to the driving force behind making it go away.

You will need to be well planned, methodical, and tenacious in outstanding mitigations along with phenomenal attention to detail.

IT Infrastructure and Security Engineer

  • Deep understanding and hands-on experience of how to apply theoretical knowledge into the practical protection of our cloud environments, endpoints, devices, and applications
  • Significant experience in how to correctly secure cloud hosted application and workplace services, such as MS Office 365
  • Experience in managing the security of web applications
  • Deploying, verifying, and maintaining effectiveness of security controls
  • Continuous improvement of security estate
  • You will be involved in security auditing and compliance across the group
  • Design, implement, test, and maintain enterprise class security systems and services to mitigate current and emerging threats while ensuring operational resilience and alignment to recognised frameworks, regulatory requirements and the business and technology strategies
  • Supplement outsourced, managed Detection and Response capabilities with daily monitoring of critical platforms and applications for security events and weaknesses
  • Demonstratable first-hand experience in achieving organisational adherence to Information Security best practices
  • Defining configuration policies and active security management of cloud technologies, firewalls, AD, Azure AD, Office 365, and similar security technologies/services
  • Experienced in detecting and remediating security vulnerabilities, patching and reporting on end-of-life technologies

Required Skills and Experience

  • Strong technical background in an IT Infrastructure or Systems Administrator type role
  • Experience of Cloud Security principles and management
  • Hands-on experience securing Office 365, Azure, Azure AD and AWS
  • Hands-on experience configuring endpoint protection on both physical and virtual devices including enterprise endpoint protection technologies (such as MS Defender for Endpoint), patching and remediation
  • Demonstratable experience in securing identities, endpoints, mobile devices, and applications using AD Group Policy, MS Intune, Conditional Access policies and Windows Autopilot
  • Experience of security logging and reporting using Azure Security Centre, Azure Monitor, Log Analytics workspaces, and Dashboards
  • Knowledge and experience of securing network devices, configuring firewall rules, content filtering and intrusion detection
  • Experience with designing secure networks, systems, and application architectures
  • Knowledge of frameworks such as ISO27001, NIST, CIS, MITRE and OWASP
  • Ability to communicate network security issues to peers and management
  • The ability to perform at pace and often under pressure

About Us


We are Citation. We are far from your average service provider.  Our colleagues bring their brilliant selves to work every day and we create an environment where they can shine.  We are a nice bunch.  We don’t do office politics or “that’s not my job”.  We listen, support and take ownership.


We have been proudly delivering valuable HR and Health and Safety services to SME’s across the UK for over 20 years. Passionate about service, we’re on a mission to revolutionise our colleague’s and client’s experience by employing brilliant people who are experts at what they do and smile whilst they are doing it.


Working for Citation you will have access to 25 days holiday, plus your birthday off work, gym membership discount, healthcare, childcare vouchers, the opportunity to purchase extra leave, pension contributions and more.


It’s a great place to work because of the people we employ. Fun and professional, we want likeminded individuals who love to love their job (no ‘mood hoovers’ here thanks!) and want the Company to succeed.


So, if our culture sounds like a good fit for you and you want to be part of our success story, then send us your details.



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