Cyber Security Specialist - L3

Global Relay; City Of London; Sur place; GBP 70 000 - 100 000; Plein temps

Résumé du poste

Global Relay is seeking a highly skilled Cyber Security Specialist to join our UK team. You will deploy and operate advanced security tools, lead incident response, and drive continuous improvement across our security posture.

You will collaborate with DevOps, IT, and product teams to protect data and ensure regulatory alignment. The ideal candidate has 5–7+ years of hands-on experience, strong cryptography knowledge, and practical experience with SIEM, WAF, EDR, and risk management.

Qualifications

• 5-7+ years hands-on experience with core information security systems (firewalls, IDS/IPS, antivirus, SIEM).
• 5-7+ years experience with Windows and Linux servers and network devices.
• Excellent knowledge of cryptography and cryptographic technologies.
• Proven escalation experience for security events root cause and resolution.
• CISSP or equivalent certification is desirable.
• Strong understanding of TCP/IP, DNS, SMTP/SMTPS, HTTP/HTTPS, DKIM/DMARC.
• Experience with ITIL-based incident, problem and change management.
• Excellent communication and documentation skills.

Responsabilités

• Monitor and improve security controls across the organization.
• Design and implement cybersecurity solutions aligned with business goals.
• Manage security technologies (WAF, SIEM, EDR, HSM) and monitor threats.
• Lead incident response and threat intelligence activities.
• Ensure compliance with standards (NIST, ISO 27001, SOC 2, GDPR).
• Mentor junior staff and communicate risks to stakeholders.

Connaissances

Firewalls & IDS/IPS

SIEM

Cryptography

Incident response

Threat intelligence

Scripting (Python/PowerShell)

Communication & mentoring

Formation

CISSP (Certified Information Systems Security Professional)

Outils

Windows servers

Linux servers

Network switches/routers (L2-L3)

Web Application Firewall (WAF)

HSM / EDR

Description du poste

Who we are:

For over 25 years, Global Relay has set the standard in enterprise information archiving with industry-leading cloud archiving, surveillance, eDiscovery, and analytics solutions. We securely capture and preserve the communications data of the world's most highly regulated firms, giving them greater visibility and control over their information and ensuring compliance with stringent regulations.

Though we offer competitive compensation and benefits and all the other perks one would expect from an established company, we are not your typical technology company. Global Relay is a career-building company. A place for big ideas. New challenges. Groundbreaking innovation. It's a place where you can genuinely make an impact - and be recognized for it.

We believe great businesses thrive on diversity, inclusion, and the contributions of all employees. To that end, we recruit candidates from different backgrounds and foster a work environment that encourages employees to collaborate and learn from each other, completely free of barriers.

Global Relay is unable to offer visa sponsorship for this position. Candidates must have the right to work in the UK at the time of application.

The Cyber Security Specialist 3 ensures the deployment, operations and continuous improvement of security tools, technologies and processes that protect Global Relay as well as ensures advanced response to security threats and vulnerabilities. This is a highly technical role with an individual who must have direct experience in the following Information Security areas, access control, endpoint security, vulnerability management and cryptography. This individual acts as an escalation resource for technical issues associated with the analysis of event logs, system logs, and other data sources and for the determination of root cause and resolution of security events. The role includes incident response, driving threat intelligence capabilities and ensuring alignment with business and regulatory expectations. As well as evaluation of security systems and processes and working closely with but not limited to management, operations/DevOps, and development teams on security related matters.

Your responsibilities:

• Adhere at all times to separation of duties between your role as a member of the security team that monitors the activities of privileged users, and privileged network and Operations/DevOps team members that use their privileges to resolve incidents and fulfil requests in the production environment.
• Design and implement Global Relay's cybersecurity solutions and ensure it aligns with business goals, Global Relay standards and industry best practices.
• Implement, manage, and monitor security technologies, including but not limited to Web Application Firewall (WAF), Threat Intelligence Platform, Security Information and Event Management (SIEM) solutions, Hardware Security Modules (HSM), Endpoint Detection and Response (EDR) platforms, Vulnerability Management Platforms.
• Act as the escalation point for security incidents and service requests in a timely manner.
• Review, assess, and prioritise escalated security related events based on severity and criticality.
• Ensure compliance with relevant security standards, regulations (e.g., NIST, ISO 27001, SOC 2, GDPR), and internal policies. Develop and enforce security policies, standards, and procedures across the organization.
• Stay up-to-date with the latest cybersecurity threats, trends, and technologies. Interpret threat intelligence and other data to develop new security use cases and defensive strategies.
• Ensure timely detection, analysis, containment and remediation of security threats and incidents.
• Monitor security tools and systems to identify and respond to potential threats in real time.
• Use scripting and programming languages (e.g., Python, PowerShell) to automate security tasks, improve efficiency, and develop custom security tools.
• Act as a subject matter expert, providing guidance and mentorship to junior and mid-level cybersecurity team members and other IT staff.
• Effectively communicate complex security concepts and risks to both technical and non-technical audiences, including senior management.
• Act as a security resource in the design and deployment of Global Relay initiatives, both internal and for Global Relay's products.
• Design, approve, and implement device rule changes, patches, and updates aligned with the change management process.
• Research and deploy security solutions, including evaluation, selection, and installation, to ensure best of class monitoring and protection of systems and applications.
• Develop, maintain and review process documentation.
• Lead the creation and management of audit content for Global Relay security audits.
• Provide leadership in the enforcement of security policies.
• Participate in security awareness initiatives.

About you:

• 5-7+ years hands-on experience working with core information security systems such as firewalls, intrusion detection and prevention implementations, antivirus and anti-malware solutions, SIEM solutions, two-factor and biometric authentication solutions, and server and network device hardening.
• 5-7+ years of hands-on experience working with core infrastructure and networking components such as Windows and Linux servers, L2-L3 network switches and routers.
• Excellent knowledge and understanding of cryptography and cryptographic technologies.
• Proven experience as an escalation point for analysis of security events to determine root cause and provide resolution.
• Information Security certifications are critical for demonstrating advanced knowledge and skills. Desirable credentials include: CISSP (Certified Information Systems Security Professional.)
• Expert understanding of a wide variety of Network communication protocols such as TCP/IP, DNS, SMTP/SMTPS, HTTP/HTTPS and email authentication protocols such as DKIM and DMARC.
• Experience using an internal and external ticketing system for ITIL-based incident, problem and change management.
• Previous experience in troubleshooting day-to-day operational processes such as report generation, data verification, data correlation, etc.
• Excellent verbal, written and documentation skills.
• Methodical and creative approach to problem-solving.
• Superior time management and prioritizing ability.

What you can expect:

At Global Relay, there's no ceiling to what you can achieve. It's the land of opportunity for the energetic, the intelligent, the driven. You'll receive the mentoring, coaching, and support you need to reach your career goals. You'll be part of a culture that breeds creativity and rewards perseverance and hard work. And you'll be working alongside smart, talented individuals from diverse backgrounds, with complementary knowledge and skills.

Global Relay is an equal-opportunity employer committed to diversity, equity, and inclusion.

We seek to ensure reasonable adjustments, accommodations, and personal time are tailored to meet the unique needs of every individual.

To learn more about our business, culture, and community involvement, visit www.globalrelay.com.