Full-Time Cybersecurity Defence Analyst

Telefonica Tech is hiring a remote Full-Time Cybersecurity Defence Analyst. The career level for this job opening is Experienced and is accepting Belfast, United Kingdom based applicants remotely. Read complete job description before applying.

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Telefonica Tech

Job Title

Cybersecurity Defence Analyst

Posted

Career Level

Full-Time

Career Level

Experienced

Locations Accepted

Belfast, United Kingdom

Job Details

This is a full-time role for a Level 3 Information Security Analyst to join a mature managed services Cyber team who manage the security posture of critical infrastructure and services under an ISO27001 and Cyber Essentials + certified managed service environment.

You will be responsible for conducting Adversary Emulation which include penetration tests as well as red-teaming exercises for health care enterprises.

This is a technical, hands-on role, and the successful candidate will be responsible for showcasing how an adversary can take advantage of vulnerable systems in an organization to get initial access to enterprise assets and then move laterally to widen the impact.

They will also be responsible for providing very specific guidance to mitigate these security gaps/mis-configs/vulnerabilities.

The successful candidate will be responsible for conducting Adversary emulation on various enterprise environments including but not limited to:

  1. On-prem Infrastructure
  2. Cloud
  3. Web Apps
  4. Non-Web Apps
  5. IOT
  6. Mobile Apps and Devices
  7. Scada environments

Skills & Experience:

Extensive experience in conducting penetration tests for Applications, IT Infrastructure Services, Cloud, IOT, Scada, Network devices, Mobile Platforms, Hardware appliances, etc.

Experience in planning and executing Whitebox, Blackbox, and Greybox penetration testing.

Experience in planning and executing red teaming exercises including general reconnaissance, social engineering, breach simulations etc.

Experience in conducting automated as well as manual penetration tests.

Experience in conducting manual config reviews for Network devices, Servers, IOT devices, Applications etc.

In-depth understanding for general security principles.

In-depth understand of how security technologies like firewalls, EDR, SIEM, TVM operate in a coherent manner, and how to avoid unnecessary alerts while executing an Adversary Emulation exercise.

Understand up-to-date security threats and common exploits.

Have an open attitude to sharing knowledge and information.

Excellent analytical and problem-solving skills.

Desire to learn new technologies.

Desirable:

  • Cyber security certification (e.g. OSCP, CRTO, OSCE, OSWP, etc)
  • Scripting Experience

This role will require travel within the UK and Ireland

Must have the right to live and work in the UK or Republic of Ireland.

Due to our location, access to own transport is essential.

Must meet Security Clearance requirements if this is a requirement of the role and any offer would be conditional upon the successful candidate passing BPSS which includes a criminal record check.

We don’t believe hiring is a tick box exercise, so if you feel that you don’t match the job description 100%, but would still be a great fit for role, please get in touch.

FAQs

What is the last date for applying to the job?

The deadline to apply for Full-Time Cybersecurity Defence Analyst at Telefonica Tech is 3rd of April 2025 . We consider jobs older than one month to have expired.

Which countries are accepted for this remote job?

This job accepts [ Belfast, United Kingdom ] applicants. .

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