Senior Cybersecurity Specialist

4 weeks ago

Bracknell, Bracknell Forest, United Kingdom Liberty Global Full time
Job Description

We are seeking a highly skilled Senior Security Specialist to join our team in Reading. As a key member of our security team, you will play a critical role in helping us mature our operational security incident management processes.

Key Responsibilities:

  • Investigate and respond to cyber incidents, providing technical expertise and guidance to the team.
  • Develop and lead the team's technical skill set, driving forward threat hunting, adversary emulation, and security use cases.
  • Understand complex IT environments, with a broad range of knowledge around networking, system administration, database platforms, and defensive methodologies.
  • Analyze a wide range of log sources, data normalization, and querying of data using analytical platforms (e.g. Splunk, Hadoop, Elastic, Kibana, MDE, and MCAS).
  • Identify malware types, infection methods, providence, and objective of the malware, extracting IoCs and TTPs.
  • Assist and develop investigations and respond to security incidents.
  • Take ownership of and responsibility for resolving issues, working as part of a wider team, guiding a team, and making decisions.

Requirements:

  • Demonstrated experience of managing, investigating, and responding to cyber incidents.
  • Deep knowledge and understanding of co-ordinating cross-organisational responses to security incidents.
  • In-depth knowledge of technical security systems, security architecture, security technology, and associated penetration testing and Security Event Management methodologies.
  • In-depth knowledge of Splunk queries, dash boarding, use case creation, and Enterprise Security.
  • In-depth knowledge of Cyber Security Methodologies, including the Cyber Kill Chain, Mitre ATT&CK Framework, NIST, and MITRE Def3nd.
  • Ability to identify developing patterns and trends in data and provide incident root cause analysis, influencing future prevention by maintaining the Incident knowledge base.
  • Experience of other security technologies and defences, such as Firewalls, Snort, Bro, Intrusion Detection System (IDS) monitoring, and custom rule creation (YARA).
  • In-depth understanding of IT systems and technologies, including Linux and Windows operating systems, E-Mail, Proxies, Endpoint Protection.
  • Working knowledge of SIEM architecture, XDR, and Vulnerability Management, Incident Response tooling such as Hive.
  • Sandboxing technologies, such as Cuckoo, and Malware reverse engineering, including IDA Pro, ole debugger, and a good understanding of REMnux.
  • Understanding DFIR toolsets, including Volatility, SIFT Workstation, memory and file system analysis, and attack vectors.
  • Knowledge of Data Protection (GDPR) and its role within a business, technical and management reporting to demonstrate effectiveness and value of the team's work.

Desirable:

  • Global Information Assurance Certifications (GIAC), such as Certified Incident Handler (GCIH), Certified Intrusion Analyst (GCIA), and Reverse Engineering Malware (GREM), would be an advantage.

What's in it for you?

  • Competitive salary + Bonus.
  • 25 days annual leave with the option to purchase 5 more.
  • Access to wellbeing and mental health benefits, such as the Calm app, personal medical, critical illness cover, and dental insurance.
  • Matched pension contribution up to 10%.
  • Access to our car benefit scheme.
  • Access to our online learning platform to continue to develop and grow your career with us.
  • The chance to join an innovative, fast-paced, and passionate team.

About Liberty Global:

We're building Tomorrow's Connections Today, bringing people together through the power of our technology. Liberty Global is a world leader in converged broadband, video, and mobile communications and an active investor in cutting-edge infrastructure, content, and technology ventures.

We're creating national champions, combining the best broadband and mobile networks under brands such as Virgin Media-02 in the UK, VodafoneZiggo in The Netherlands, Telenet in Belgium, Sunrise in Switzerland, Virgin Media in Ireland, and UPC in Slovakia.

Liberty Global Ventures, our global investment arm, has a portfolio of more than 75 companies and funds across content, technology, and infrastructure, including strategic stakes in ITV, Univision, Plume, Lionsgate, and the Formula E racing series.

We're prioritising diversity, equity, and inclusion in our workplace and communities, while reducing our impact on the environment. We are using technology as a force for good; for our people, our partners, and the planet.

Liberty Global is an equal opportunity employer. We embrace diversity and are committed to creating an inclusive environment for our people. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process.

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