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Infrastructure Security Engineer

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NTT DATA

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Location:
United Kingdom , London

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

The Infrastructure Security Engineer role involves supporting the design, implementation, and maintenance of secure infrastructure solutions. Candidates should have 2-4 years of experience in IT infrastructure and networking, with a foundational understanding of network security principles. Required certifications include Security+ and Network+. The position emphasizes teamwork, attention to detail, and the ability to follow documented procedures. Responsibilities include configuring security technologies, monitoring security alerts, and assisting in incident investigations. This role offers opportunities for professional development and growth in the cybersecurity field.

Job Responsibility:

  • Assist in implementing network security controls including firewalls, IPS/IDS, and proxies under supervision
  • Configure basic network security policies and access control lists following approved designs
  • Support network segmentation implementations and VLAN configurations
  • Assist with VPN setup and secure remote access solution deployments
  • Document network security configurations and changes accurately
  • Perform routine security device maintenance and updates under guidance
  • Support deployment and configuration of security technologies including SIEM, EDR, and endpoint protection
  • Assist in integrating security tools with existing infrastructure under supervision
  • Configure security monitoring rules and alerts based on approved templates
  • Support security technology testing and validation activities
  • Maintain security tool inventories and configuration documentation
  • Troubleshoot basic security technology issues with senior guidance
  • Apply security hardening standards to servers, workstations, and network devices under supervision
  • Implement CIS Benchmark configurations for Windows and Linux systems
  • Perform security baseline assessments using automated scanning tools
  • Document configuration compliance status and exceptions
  • Support remediation activities for configuration vulnerabilities
  • Maintain secure configuration templates and standard operating procedures
  • Monitor security alerts and events from SIEM and security tools under guidance
  • Perform initial triage of security incidents and escalate appropriately
  • Assist in security incident investigations and evidence collection
  • Document security incidents and response actions taken
  • Support routine security health checks and operational tasks
  • Contribute to security monitoring process improvements
  • Create and maintain accurate technical documentation for security implementations
  • Produce network diagrams, configuration guides, and runbooks under supervision
  • Document security procedures and operational workflows
  • Contribute to knowledge base articles and technical wikis
  • Prepare routine security status reports and metrics
  • Maintain project documentation and deliverable repositories
  • Perform straightforward security testing activities under supervision
  • Conduct vulnerability scans and analyze results with guidance
  • Validate security control implementations against requirements
  • Support penetration testing activities and remediation verification
  • Test security patches and updates in lab environments
  • Document testing results and findings clearly

Requirements:

  • 2-4 years of experience in IT infrastructure, networking, or systems administration
  • 1-2 years exposure to security technologies and practices
  • Hands-on experience with network devices and security tools
  • Experience working in team environments on technical projects
  • Demonstrated interest in developing cybersecurity career
  • Basic understanding of network security principles and architectures
  • Familiarity with firewall concepts and basic configuration (Palo Alto, Cisco ASA, Fortinet)
  • Knowledge of common security technologies (antivirus, IPS/IDS, proxies)
  • Understanding of Windows and Linux operating system security
  • Basic scripting skills (PowerShell, Bash, Python) for automation tasks
  • Network protocols: TCP/IP fundamentals, routing basics, switching, VLANs
  • Network services: DNS, DHCP, NTP, Active Directory basics
  • Virtualization: Basic VMware or Hyper-V knowledge
  • Operating systems: Windows Server administration, Linux command line
  • Cloud basics: Awareness of AWS, Azure, or GCP security concepts
  • Experience with or willingness to learn SIEM platforms (Splunk, QRadar, Sentinel)
  • Familiarity with endpoint protection platforms (CrowdStrike, Carbon Black, Defender)
  • Knowledge of vulnerability scanning tools (Nessus, Qualys, OpenVAS)
  • Understanding of network monitoring and packet analysis tools
  • Basic knowledge of security automation and orchestration concepts
  • Strong attention to detail and accuracy in technical work
  • Good written and verbal communication skills
  • Ability to follow documented procedures and best practices
  • Willingness to learn and develop new technical skills
  • Team collaboration and ability to seek guidance when needed
  • Time management and prioritization of assigned tasks
  • Security+ or equivalent foundation security certification - Mandatory
  • Network+ or CCNA certification - Required or in progress
  • Microsoft or Linux certification - Preferred
  • Working toward: CCNA Security, SSCP, or vendor security certifications

Nice to have:

  • Microsoft or Linux certification
  • CCNA Security, SSCP, or vendor security certifications
What we offer:
  • Tailored benefits supporting physical, emotional, and financial wellbeing
  • Continuous growth and development opportunities
  • Opportunity to have flexible work options

Additional Information:

Job Posted:
May 03, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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