Network Security Analyst

A&O Shearman; Northern Ireland; On-site; GBP 45,000 - 60,000; Full time

Job summary

A leading professional services firm in Northern Ireland is looking for a Network Security Analyst to oversee network security operations. The successful candidate will manage firewalls, monitor threats, and contribute to compliance efforts. The role requires significant experience in network security and comes with a comprehensive benefits package including pension, medical insurance, and wellbeing services.

Benefits

Occupational pension scheme

Private medical insurance

Health and wellbeing services

Qualifications

• Significant experience in a network security engineering role.
• Practical experience with core network protocols.
• Hands-on experience with industry-standard tools.

Responsibilities

• Administer and maintain firewalls and network appliances.
• Monitor network security metrics to identify threats.
• Collaborate with IT teams on security configuration.

Skills

Network security engineering

Core network technologies (TCP/IP, BGP)

Network monitoring and management tools

Communication skills

Education

Bachelor's degree in Computer Science or related

Tools

Cisco Certified Network Professional (CCNP)

Microsoft Certified: Azure Network Engineer Associate

Job description

Job Description

We have an exciting new opportunity for a Network Security Analyst to join the A&O Shearman Belfast office.

Apply today via the link below or contact [e-mail] for more information.

About the team

The firm's ability to keep our clients' data secure is a bedrock for our reputation as a trustworthy professional services partner to many of the world's large and prestigious organisations. Information security is not an afterthought; it is core to all that we do, to protect not only our data but that of our clients, and has the unwavering support of the Board.

Led by our new CISO, the in-house Information Security team is a core part of our technology services structure with mature or evolving capability across all areas of digital security and cyber defence. We align our efforts to the NIST framework and other recognised certifications including ISO27001 and SOC2 and strive to keep pace with the continually evolving threat landscape, in support of A&O Shearman's strategy to lead where global complexity creates opportunity.

In addition, you will have the opportunity to share and gain intel from the firm's cybersecurity lawyers. The global team have experience advising clients on hundreds of incidents. Leveraging this experience, they feedback practical lessons learned into clients' cyber risk management and incident response programmes.

What you will do

Network Security Operations

• Assist in administering and maintaining firewalls and other network appliances to ensure they are up-to-date and securely configured.
• Support the definition and implementation of configurations, policies, and rules for firewalls and other network appliances, under the guidance of senior colleagues.
• Monitor network security metrics to help identify potential threats, risks, and indicators of compromise.
• Perform configuration changes and firmware upgrades on network security tools and appliances, with support from senior colleagues, to maintain optimal security standards.
• Participate in the execution of network security improvement initiatives, ensuring alignment with business objectives and timely delivery.

Security & Compliance

• Collaborate with the wider Technology, IT, and Information Security teams to ensure secure configuration of network infrastructure and prompt remediation of any security issues.
• Support the Cyber Defence team in responding to incidents related to the firm's network infrastructure.
• Assist the Governance, Risk, and Compliance (GRC) team in responding to client queries and requests related to network infrastructure, escalating where necessary.

Documentation & Governance

• Contribute to the development and refinement of documentation related to network security, including policies, procedures, standards, playbooks, and diagrams.
• Help maintain accurate records of network configurations, incidents, and changes to support compliance and audit readiness.

Development and Advocacy

• Seek guidance from senior colleagues to support and manage the security of the firm's network infrastructure effectively.
• Advocate for security best practices and promote a culture of risk awareness across the firm.
• Participate in training and knowledge-sharing sessions to continuously improve network security practices.

What you will have

• Significant experience in a network security engineering role, or extensive experience in a relevant IT engineering or Information Security role.
• Practical experience working with core network technologies, protocols, and standards such as TCP/IP, BGP, OSPF, VLAN, and VPN.
• Proven experience as a member of a network engineering, IT infrastructure, or information security team.
• Hands‑on experience with industry‑standard network monitoring and management tools.
• Good written and verbal communication skills, with the ability to collaborate effectively across teams and departments.

You will stand out if you bring

• Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related discipline.
• Recognised industry certifications in networking, such as:
• Cisco Certified Network Professional (CCNP)
• Microsoft Certified: Azure Network Engineer Associate
• Experience working with networking in cloud environments, including Azure, AWS, or Google Cloud Platform (GCP).
• Familiarity with industry‑standard security frameworks, such as ISO/IEC 27001.

What we can offer you

We recognise that our people are our most valuable asset, which is reflected in the wide range of benefits that are available to our employees. Some of these benefits include: our occupational pension scheme, group income protection cover, private medical insurance, mental health resources and free apps, health and wellbeing services encompassing GP service, emergency back‑up care support, parental and special leave, holiday entitlement increasing with length of service, holiday trading, online discounts and lifestyle management services.

Should you require additional support at any stage of the recruitment process due to a disability or a health condition, please do not hesitate to contact a member of our recruitment team who will work with you to provide any adjustments as required.

We are an equal opportunities recruiter and do not discriminate on the basis of race, colour, sex, religion, sexual orientation, national origin, disability, or any other protected characteristic.

If this role is not of interest we may have another suitable opportunity here for you at A&O Shearman! Visit our careers portal at A&O Shearman Careers and submit your CV to our Talent Network to be notified when the perfect opportunity becomes available.