Principal Network Security Engineer

Job Type Permanent Full-Time Remote Work Option Hybrid Category Business and Corporate Location County Dublin, Ireland

Job Details

We are the people behind Ireland’s electricity grid. We operate the power system with world leading levels of variable asynchronous renewable generation, ensuring that everyone has power when they need it. But that’s not all, we are now transforming the power system for future generations. EirGrid Group has a unique role to play in leading this radical transformation of our power system in support of the transition to renewable energy. This will require pioneering engineering effort together with highly secure IT capability to respond successfully to the scale of disruption. This offers a unique opportunity to further your career in cybersecurity while playing a significant role in protecting critical national infrastructure. We’re an IT intensive business, and we operate a state-of-the-art, specialised business-critical systems, 24/7. Our future has never looked more exciting. And this is an incredible opportunity to be part of it. The world is ready for change. If you are too, join us. The Opportunity The Principal Network Security Engineer is an exciting role in a well-established Enterprise Security team. You will assist in the operation and development of IT security solutions across a variety of technical platforms, data networks and security domains. The solutions involved underpin the organisation’s corporate, market and power system operational functions. Key operational aspects of the role include management of firewalls, content filtering services, WAF & other network security tools, responding to security incidents that have been escalated from a Tier 1 Security Operations Centre and supporting a variety of security operations management systems. Key development aspects include assisting with the extension or optimisation of existing network security solutions or the design and delivery of new solutions. Key Responsibilities

• Design and implement secure network solutions that align with the organisation’s security policies and business goals.
• Recommend and evaluate new network security technologies and solutions.
• Configure and manage next gen firewalls, intrusion detection/prevention systems (IDS/IPS), network access control (NAC), and virtual private networks (VPN).
• Implement and maintain secure connectivity solutions for on-premises, cloud, and hybrid environments.
• Support and optimise a variety of security or network operational solutions that facilitate event data collection, systems monitoring, threat detection, vulnerability management, perimeter defences, enterprise password management and network infrastructure management such as email and web gateways.
• Create and maintain comprehensive documentation for network security designs, configurations, and procedures.
• Respond to security incidents that have been escalated from a Tier 1 Security Operations Centre by carrying out advanced analysis and remediation whilst overseeing the necessary engagement with internal stakeholders and external security partners.
• Develop and maintain operational procedures and run books, driving improvements and automation where possible.
• Management of micro-segmentation solutions.
• Operation and management of WAF technologies.
• Assist the “Blue Team” in response to incidents and or attack simulations.

About You The successful candidate will have:

• Qualification in a relevant technical discipline and typically 10 years’ experience in network security engineering or related roles.
• Expertise in designing and implementing secure network infrastructures.
• Hands-on experience with firewalls IDS/IPS, and VPNs.
• Strong knowledge of security protocols and technologies.
• Familiarity with cloud security (e.g., Azure Cloud).
• Experience with network security standards and frameworks (e.g., NIST CSF, CIS Controls).
• Proficiency in scripting and automation (e.g., Python, PowerShell) for network security tasks.
• Professional certifications such as CISSP, CCIE Security, or Azure Certified Security.
• Experience with Zero Trust architecture principles plus knowledge of security information and event management (SIEM) tools.
• Strong understanding of identity and access management (IAM) within a network context.
• An understanding of the cyber threat landscape including the analysis of multiple sources of intelligence and communication of results.
• Technical knowledge of IT Infrastructure ideally including security appliances, vulnerability management tools, directory services, host-based security technologies, data networks and protocols.
• Knowledge and experience in the implementation of resilient network security solutions.
• A security or networks industry certification and familiarity with cyber security frameworks (e.g. NIST) and standards (e.g. ISO 27001) would also be an advantage.

Closing date for applications 20th December 2024 EirGrid is an Equal Opportunities Employer #J-18808-Ljbffr