IT / Network Security Engineer

Tank Recruitment; Oxford; On-site; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Hybrid working model (2 days on-site)

Job summary

Tank Recruitment in Oxfordshire is seeking an IT & Network Security Engineer to join the security operations team. The role focuses on defending infrastructure, enterprise networks, and data against cyber threats, reporting to the Head of IT Security.

You will oversee threat detection, security appliance management, compliance, and secure-by-design integration across the tech stack in a fast-moving environment.

Qualifications

• Experience in security operations and incident response within an enterprise environment.
• Familiarity with ISO 27001 controls and audit processes.
• Hands-on with network security tools and threat detection.

Responsibilities

• Oversee security operations and monitor network telemetry.
• Lead threat detection, response, and patch management cycles.
• Assist with ISO 27001 compliance audits and audits readiness.
• Coordinate with IT infra, apps, and legal to embed secure design.

Skills

Security operations

Network protocols

SIEM monitoring

Cloud security

ISO 27001 knowledge

Threat modelling

Communication skills

Networking tools

Education

Relevant technical diploma or equivalent

Certs: CISSP/CEH/CCNA Security/ISO 27001 Lead Auditor (desirable)

Tools

Packet analyzers

Port scanners

Firewalls

VPNs

Job description

IT & Network Security Engineer

Job Title: IT Security Engineer

Location: Oxfordshire - Hybrid (2 days per week on-site)

Industry: Enterprise SaaS / Technology Solutions

About the Role

We are partnering with a rapidly scaling, globally active software and data platform enterprise looking to appoint a dedicated IT Security Engineer to join their growing security operations team.

In this role, you will be instrumental in defending core infrastructure, enterprise networks, and critical data against modern cyber threats. Working closely with the Head of IT Security, you will oversee threat detection, manage security appliances, enforce compliance frameworks, and ensure that robust defensive postures are embedded across the technology stack.

Key Responsibilities

• Security Operations: Oversee network telemetry for suspicious activities, execute rapid threat detection and response, tune perimeter defenses (firewalls and virtual private networks), and direct proactive patch management cycles.
• Compliance & Audits: Drive internal control testing and maintain alignment with structured information security standards such as ISO 27001, supporting both internal evaluations and external auditor walkthroughs.
• Incident Handling: Manage the end-to-end lifecycle of security alerts or breaches, lead formal root-cause analysis, and embed corrective actions into future preventive safeguards.
• Third-Party Risk: Evaluate external vendors and technology partners to ensure compliance with internal security policies and benchmark security standards.
• Cross-Functional Collaboration: Partner directly with IT infrastructure, application support, software engineering, and legal teams to bake security-by-design principles into technical architectures.

Key Requirements

• Experience: A minimum of 3 to 5 years of dedicated professional experience within an IT or information security function.
• Technical Proficiency:
  • Deep working knowledge of core network protocols (TCP/IP, DNS, routing, switching) and architecture design.
  • Hands‑on proficiency with network analysis utilities, packet sniffers, port scanners, and SIEM monitoring suites.
  • Working familiarity with cryptographic methods, identity controls, endpoint hardening, and multi‑cloud security management (AWS, Azure, or GCP).
• Framework Knowledge: Solid comprehension of ISO 27001 principles, threat modelling frameworks, vulnerability scanning, risk treatment life‑cycles, and secondary compliance standards (e.g. SOC 2 or PCI DSS).
• Qualifications: Relevant technical diploma or equivalent practical background, reinforced by desirable professional credentials (such as CISSP, CEH, CCNA Security, or ISO 27001 Lead Auditor certifications).
• Personal Attributes: Strong analytical problem‑solving skills, clear communication capabilities, and the adaptability to thrive in a fast‑moving, collaborative environment.

What is on Offer

• Competitive base salary package.
• Sustainable hybrid working model (2 days on-site in Oxfordshire).
• Continuous professional development and training opportunities within an expanding tech organisation.