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Senior Security Specialist, Henley-on-Thames
Client: Liberty Global
Location: Henley-on-Thames, United Kingdom
Job Category: Other
EU work permit required: Yes
Job Reference: 2b6522f420
Job Views: 79
Posted: 18.02.2025
Expiry Date: 04.04.2025
Job Description:
We’re looking for a Senior Security Specialist to join us in Reading. Reporting into our Senior CERT Manager, you will help continue to mature the way in which the organisation manages and handles operational security incidents. You will provide a passion and deep technical understanding of how to investigate and handle cyber incidents. You and the team will support the entire portfolio of Liberty Global across our global network to detect, respond, remediate, and recover from cyber-attacks while proactively defending against them through Intelligence Led Threat Hunting.
What will you be doing?
The role will encompass being a Security Subject Matter Expert (SME), leading, guiding, and inspiring the team of security analysts while acting as a technical escalation point. As such, the role requires a deep technical understanding of intrusion detection and analysis, incident response, vulnerability management, and infrastructure.
Driving forward the technical skill set of the team by developing threat hunting, adversary emulation, leading-edge threat mitigation methodologies, and security use cases.
Understand complex IT environments with a broad range of knowledge around networking, system administration, and database platforms, and develop defensive methodologies around likely methods of attack.
Experience in analysing a wide range of log sources, data normalization, and querying data using analytical platforms (e.g. Splunk, Hadoop, Elastic, Kibana, MDE, and MCAS).
Identification of malware types, infection methods, providence, and objectives. This will also require extraction of IoCs and TTPs.
Assist and develop investigations and respond to security incidents. A self-starter is required for this role, and the successful applicant will be able to demonstrate taking ownership of and responsibility for resolving issues.
They will also be able to work as part of a wider team, guide a team, and be confident in making decisions. The role will be predominantly Mon-Fri office hours, although some out of hours support is envisaged.
We tend to look for people with:
1. Demonstrated experience of managing, investigating, and responding to cyber incidents.
2. Deep knowledge and understanding of coordinating cross-organisational responses to security incidents.
3. In-depth knowledge of technical security systems, security architecture, security technology, and associated penetration testing and Security Event Management methodologies.
4. In-depth knowledge of Splunk queries, dashboarding, use case creation, and Enterprise Security.
5. In-depth knowledge of Cyber Security Methodologies including the Cyber Kill Chain, Mitre ATT&CK Framework, NIST, and MITRE Def3nd.
6. Ability to identify developing patterns and trends in data and provide incident root cause analysis.
7. Experience with other security technologies & defenses such as Firewalls, Snort, Intrusion Detection System (IDS) monitoring, and custom rule creation (YARA).
8. In-depth understanding of IT systems and technologies (e.g. Linux and Windows operating systems, E-Mail, Proxies, Endpoint Protection).
9. Working knowledge of SIEM architecture, XDR, and Vulnerability Management.
10. Understanding of DFIR toolsets (e.g. Volatility, SIFT Workstation) and attack vectors.
11. Knowledge of Data Protection (GDPR) and its role within a business.
12. Global Information Assurance Certifications (GIAC) e.g. Certified Incident Handler (GCIH), Certified Intrusion Analyst (GCIA), 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
Who we are:
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.
With our investments in fibre-based and 5G networks, we play a vital role in society, currently providing over 85 million fixed and mobile connections and rolling out the next generation of products and services.
Liberty Global Ventures, our global investment arm, has a portfolio of more than 75 companies and funds across content, technology, and infrastructure.
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.
Additional information:
Employment type: Full-time
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