Security Infrastructure Engineer in England

Security Infrastructure Engineer in England

England Freelance Home office (partial)
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At a Glance

  • Tasks: Support secure infrastructure installation and maintenance in a dynamic defence environment.
  • Company: Join a leading organisation focused on cyber security and defence.
  • Benefits: Competitive daily rate, hybrid work model, and opportunities for professional growth.
  • Why this job: Make a real impact in national security while working with cutting-edge technologies.
  • Qualifications: Experience in security infrastructure engineering and SC/DV clearance required.
  • Other info: Collaborative team environment with opportunities to engage in complex projects.

We are seeking an experienced Security Infrastructure Engineer to support the Security Team in the installation, configuration, maintenance, and update of servers and software components. Working closely with the Project Manager (PM), Technical Design Architect (TDA), Security Assurance Coordinator (SAC), and wider engineering teams, you will play a key role in delivering compliant, accredited, and secure infrastructure solutions within a complex defence environment.

Key Responsibilities

  • Support the installation, configuration, administration, and maintenance of secure infrastructure and software components.
  • Work with the PM, TDA, and engineering teams to produce system security engineering designs, solutions, and documentation.
  • Act as the primary security engineering conduit between PM, SAC, TDA, and engineering teams to ensure compliant security solutions.
  • Attend and contribute to regular governance and review meetings, including the Security Working Group (SWG).
  • Engage with stakeholders and dependent projects to deliver coordinated security engineering solutions supporting accreditation and registrations.
  • Contribute to the Security Accreditation Plan in coordination with the Project SAC.
  • Validate engineering designs against JSP 453 / JSP 604, providing supporting evidence and documentation.
  • Identify security risks, recommend mitigations, and advise on secure design decisions.
  • Provide advice on in-service and emerging cyber security technologies, including cost, risk, and benefits analysis.

Essential Knowledge, Skills & Experience

  • Strong experience in security infrastructure engineering within secure or regulated environments.
  • Infrastructure access control expertise, including: Ubuntu / Linux system administration, LDAP design and management, RADIUS / TACACS configuration.
  • Proven experience supporting the installation, configuration, administration, and support of secure infrastructure solutions.
  • Strong understanding and administration of PKI hierarchies.
  • Knowledge of security frameworks including NIST CSF, ISO 27001, and MOD Secure by Design (SbD).
  • Experience providing security input to: Virtualisation technologies (VMware ESXi 8, vCentre 8), Network infrastructure (Cisco IOS-XE, ASA, BGP, VRF/MPLS, VPN, QoS).
  • Clear understanding of JSP 604 / JSP 453 network security engineering compliance.

Highly Desirable Qualifications

  • Cyber security certifications such as: CompTIA Security+, GIAC Security Essentials (GSEC), Systems Security Certified Practitioner (SSCP).

Desirable Skills & Experience

  • Scripting and automation (Python, PHP).
  • Delivery in high-pressure, complex organisational environments.
  • Writing and analysing technical and security requirements.
  • Supporting product selection against cost, performance, and timescale constraints.
  • Experience working within large, multi-disciplinary technical teams.
  • Knowledge of Cyber Essentials / Cyber Essentials Plus.
  • Experience with penetration testing and system security assurance.
  • In-date professional registration (e.g. APMG, CIISec).
  • Experience delivering secure solutions within the UK public sector, ideally Defence Digital.
  • Delivery experience across Agile (SAFe4) and Waterfall methodologies.
  • Knowledge of SCOM.

If you would like to discuss this Security Infrastructure Engineer role in more detail, please send your updated CV to (url removed) and I will get in touch.

Security Infrastructure Engineer in England employer: CBSbutler Holdings Limited trading as CBSbutler

Join a leading organisation in the defence sector as a Security Infrastructure Engineer, where you will be part of a dynamic team dedicated to delivering secure infrastructure solutions. Located in Corsham, this role offers a hybrid working model, competitive daily rates, and the opportunity to work on cutting-edge security technologies within a supportive and collaborative environment. With a strong focus on employee development and a commitment to maintaining high standards of security compliance, this company is an excellent employer for those seeking meaningful and rewarding careers in cyber security.
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Contact Detail:

CBSbutler Holdings Limited trading as CBSbutler Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Security Infrastructure Engineer in England

✨Tip Number 1

Network, network, network! Get in touch with people in the industry, especially those who work in security infrastructure. Attend meetups or online webinars to connect with potential employers and learn about job openings that might not be advertised.

✨Tip Number 2

Prepare for interviews by brushing up on your technical skills and understanding the latest trends in cyber security. Be ready to discuss your experience with VMware, Linux, and security frameworks like NIST CSF and ISO 27001. We want you to shine!

✨Tip Number 3

Showcase your SC/DV clearance and any relevant certifications during interviews. This is a big plus in the defence sector, and it can set you apart from other candidates. Make sure to highlight your hands-on experience with secure infrastructure solutions.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive and take the initiative to reach out directly.

We think you need these skills to ace Security Infrastructure Engineer in England

SC / DV clearance
Vmware ESXi 8
vCentre 8
Linux system administration
LDAP design and management
RADIUS configuration
TACACS configuration
PKI hierarchies administration
NIST CSF
ISO 27001
MOD Secure by Design (SbD)
Cisco IOS-XE
ASA
BGP
VPN
QoS
JSP 604 compliance
JSP 453 compliance
CompTIA Security+
GIAC Security Essentials (GSEC)
Systems Security Certified Practitioner (SSCP)
Python scripting
PHP scripting
Cyber Essentials
Cyber Essentials Plus
penetration testing
system security assurance
Agile (SAFe4) methodologies
Waterfall methodologies
SCOM

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience in security infrastructure engineering, especially within secure environments. We want to see how your skills align with the job description, so don’t be shy about showcasing your SC/DV clearance and relevant tech expertise!

Showcase Relevant Experience: When writing your application, focus on your hands-on experience with VMware, Linux, and cyber security. We’re looking for specific examples of how you’ve supported secure infrastructure solutions, so include those juicy details that demonstrate your capabilities.

Use Clear Language: Keep your application clear and concise. Use straightforward language to describe your skills and experiences. We appreciate a well-structured application that makes it easy for us to see why you’d be a great fit for the role!

Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining our team at StudySmarter!

How to prepare for a job interview at CBSbutler Holdings Limited trading as CBSbutler

✨Know Your Security Frameworks

Make sure you brush up on your knowledge of security frameworks like NIST CSF and ISO 27001. Be ready to discuss how these frameworks apply to the role and how you've used them in past projects.

✨Showcase Your Technical Skills

Prepare to talk about your experience with VMware, Linux, and any scripting languages you know. Have specific examples ready that demonstrate your ability to install, configure, and maintain secure infrastructure solutions.

✨Understand the Compliance Landscape

Familiarise yourself with JSP 453 and JSP 604 compliance requirements. Be prepared to explain how you've ensured compliance in previous roles and how you would approach it in this position.

✨Engage with Stakeholders

Highlight your experience working with project managers and technical teams. Think of examples where you successfully collaborated to deliver security solutions and be ready to discuss how you can contribute to governance meetings.

Security Infrastructure Engineer in England
CBSbutler Holdings Limited trading as CBSbutler
Location: England
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