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L3 Security Analyst

United Kingdom, Newbury · Job Posted January 22, 2026
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Job Description

Join Vodafone’s Cyber Defence Operations Center of Excellence (CDO) and play a pivotal role in protecting millions of customers from global cyber threats. As a Level 3 Security Analyst, you’ll be at the forefront of advanced incident response, tackling complex security challenges and driving continuous improvement in our cyber defence posture.

Job Responsibility

  • Investigate and validate threats using cutting-edge tools
  • Collaborate with global teams on incident investigations
  • Mentor colleagues to uplift skills across the CSOC
  • Fine-tuning SIEM systems and automating response actions
  • Delivering insightful security reports and advisories

Requirements

  • Experienced SOC analyst (Level 2 or above) with at least 4 years in security event analysis and incident response
  • Strong technical knowledge of networking protocols, operating systems (Windows/Linux), and security technologies (SIEM, EDR, IDS/IPS, firewalls, proxies)
  • Hands-on experience with SIEM tuning and SOAR automation
  • Familiarity with frameworks like MITRE ATT&CK and cyber kill chain
  • Knowledge of cloud platforms (Azure, AWS, Google Cloud) and scripting/programming skills
  • Excellent analytical, communication, and collaboration skills, with the ability to explain technical concepts to non-technical audiences
  • Passion for continuous learning and professional development, ideally working toward certifications such as GCIA, GCIH, GCFA, GNFA, CEH, or ECSA
  • A proactive, disciplined approach and the ability to work independently or as part of a team in a fast-paced environment

What we offer

  • Yearly bonus: 10%
  • Annual leave: 28 days + bank holidays + the opportunity to buy/sell/carry over 5 days/year
  • Charity days: 5 days/year
  • Maternity leave: 52 weeks: the first 13 weeks are fully paid, followed by 26 weeks of half pay
  • Private pension: You can contribute up to 5% of your basic pay with 2:1 matching from Vodafone up to 10%
  • Access to: private medical, private dental, free health assessments, share save scheme
  • Additional discounts: Vodafone retail, gym, cinema, cycle to work, season ticket loan

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