Network Security Engineer – Financial Services, Dublin 2
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What you'll be doing
Join a global financial institution's Dublin team as a Network Security Engineer. You'll configure and upgrade network infrastructure, maintain firewalls, address vulnerabilities across Windows and Linux, and participate in threat analysis and troubleshooting. 5+ years' experience in regulated industries required.
- Configure and upgrade network infrastructure
- Maintain firewalls, address load balancing and DNS issues
- Manage upgrades and configuration of routers and switches
- Participate in threat analysis, scanning, and ticketing
- Identify and address vulnerabilities across Windows and Linux platforms
- Maintain related documentation
- Participate in on-call troubleshooting rotation
Key requirements
Must-have
- 5+ years of hands-on commercial experience in a regulated industry
- Experience with network upgrades
- Proven track record of vulnerability assessment and remediation
- Cross-platform knowledge (Windows/Linux)
- Experience with automation tools (Python/Bash/PowerShell)
- Exceptional communication skills
Nice-to-have
- Cisco Certifications
Experience: 5+ years
Role signals
- Technical focus
- Network Security
- Hands-on vs management
- Hands-on
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Full job description
Network Security Engineer – Financial Services, Dublin 2
Our client is a global Financial Institution, with its Dublin base managing acting as European hub for various subsidiaries. They have engaged us to speak to Network Security Engineers with broad skills across Networks, Firewalls, Servers and Threat Analysis to join their growing team in Dublin 2.
*The role: *
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Join the existing team of Security Engineers to configure and upgrade network infrastructure as well as firewall maintenance, load balancing issues and DNS
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Manage ongoing upgrades across routers/switches and configuration issues
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Act as part of the Threat Analysis and Prioritisation team, scanning and ticketing
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Work across Windows and Linux platforms, identifying and addressing vulnerabilities
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Take responsibility for all related documentation
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Participate in on call troubleshooting rotation when required
** *Requirements: *
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5+ years of hands on commercial experience within a regulated industry
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Cisco Certifications advantageous alongside network upgrade experience
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Proven track record of vulnerability assessment and related actions
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Cross platform knowledge (Windows/Linux)
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Automation tools, including Python/Bash/PowerShell
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Exceptional communication skills Please note we can only accept applications from candidates eligible to work in the EU.
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Interview prep pack
Grounded in this listing. Use it to prepare examples before you apply.
Your interview focus
Based on this listing, the role is a hands-on Network Security Engineer position within a regulated financial services environment in Dublin, focusing on network upgrades, firewall maintenance, vulnerability assessment, and cross-platform security operations.
- Hands-on technical expertise·High
- Cross-platform (Windows/Linux) security·High
- Automation and scripting·Medium
- Communication and documentation·Medium
Only have 30 minutes?
Follow a focused preparation plan based on this job.
Start 30-minute prep
Your 30-minute plan
Review Recent Network Security Projects
0–8 minSelect 1-2 relevant projects involving network upgrades, firewall management, or vulnerability remediation to discuss in detail.
Refresh Automation and Scripting Examples
8–15 minPrepare to explain and, if possible, show examples of Python, Bash, or PowerShell scripts you've used for security automation.
Brush Up on Cross-Platform Security Practices
15–20 minReview your experience and best practices for securing both Windows and Linux environments.
Prepare Documentation and Communication Examples
20–25 minThink of situations where your documentation or communication skills made a difference, especially in regulated settings.
Research the Financial Services Security Landscape
25–30 minFamiliarize yourself with current security challenges and compliance requirements in the financial sector.
Talking points
, 6 itemsNetwork Infrastructure Upgrades
Be ready to discuss your experience upgrading routers, switches, and other network components, as the role emphasizes ongoing upgrades and configuration.
Firewall Maintenance and Load Balancing
Prepare examples of maintaining and troubleshooting firewalls, load balancing, and DNS issues, as these are core responsibilities.
Vulnerability Assessment and Remediation
Demonstrate your approach to identifying, prioritizing, and remediating vulnerabilities, especially in regulated environments.
Cross-Platform Security (Windows/Linux)
Showcase your ability to secure and troubleshoot both Windows and Linux systems, as cross-platform knowledge is required.
Automation with Scripting Tools
Highlight your use of Python, Bash, or PowerShell to automate security tasks, as automation skills are specifically requested.
Documentation and Communication
Provide examples of maintaining clear documentation and communicating technical issues, as exceptional communication is emphasized.
What to research
, 4 itemsRecent Network Upgrade Projects
Review your experience with network infrastructure upgrades, especially in regulated or financial environments.
Vulnerability Assessment Tools and Methods
Refresh your knowledge of tools and processes for vulnerability scanning and remediation on both Windows and Linux.
Firewall and Load Balancer Technologies
Be prepared to discuss specific firewall and load balancing solutions you have configured or maintained.
Automation Scripts Portfolio
Gather examples of Python, Bash, or PowerShell scripts you have written to automate security tasks.
Questions to ask
, 6 itemsWhat are the main network security challenges currently facing the Dublin team?
Why ask this? Shows interest in the team's priorities and readiness to address real-world issues.
How is the threat analysis and prioritization process structured within the team?
Why ask this? Clarifies expectations for your involvement in threat management.
What automation tools or frameworks are most commonly used by the team?
Why ask this? Demonstrates your intent to align with existing workflows and contribute effectively.
How does the team ensure compliance with financial industry regulations during network upgrades?
Why ask this? Shows awareness of the importance of compliance in a regulated industry.
What is the typical on-call rotation schedule and support structure?
Why ask this? Helps you understand work-life balance and expectations for urgent support.
How is knowledge sharing and documentation managed within the team?
Why ask this? Indicates your interest in collaboration and maintaining high standards.
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