Overview
NeoDyne is a leading engineering company specialising in IT/OT, industrial automation, and electrical engineering solutions. With over 200 talented engineers across Ireland, the UK, and the US, we deliver high-impact projects to more than 300 B2B customers - primarily large multinationals in the energy, pharmaceutical, and food & beverage sectors.
As certified IEC 62443 Cyber Security Experts, we bring deep technical knowledge and hands-on experience in securing complex industrial environments. We understand the unique challenges OT environments face - from legacy systems to real-time control risks - and provide the expertise needed to identify vulnerabilities, reduce exposure, and support compliance-driven security strategies.
Position Summary
NeoDyne is seeking a highly experienced Senior OT Cybersecurity Analyst to support one of our key customers on a long-term contract basis. The successful candidate will be embedded in the security operations team and will also work closely with the NeoDyne team and play a critical role in delivering OT cybersecurity expertise across multiple sites. This is a technically hands-on role focused on network security, firewall management, threat detection, and secure remote access, with oversight of key systems and vendors. The position will be based in Cork with a requirement to visit the customer's Cork office at least twice a week with travel to other sites as required.
Key Responsibilities
- Lead day-to-day support for cyber operations across multiple remote sites.
- Manage and maintain firewall infrastructure (Palo Alto, CheckPoint, Cisco).
- Operate and monitor remote access platforms (e.g. Secomea, BeyondTrust), ensuring proper auditing and logging.
- Conduct regular threat & vulnerability scanning, manage penetration testing, and drive remediation efforts.
- Assist in incident response and investigation of security alerts within ICS environments.
- Support cyber maintenance, patching, and system hardening activities.
- Maintain access control, password management, and ICS-specific security controls.
- Define and track ICS cyber KPIs and participate in governance reviews.
- Liaise with internal teams and manage third-party vendors and contractors.
- Ensure alignment with regulatory frameworks (e.g., IEC 62443, NISD, ISO 27001, NIST).
Required Experience & Skills
- Bachelor's degree in Computer Science, Engineering, or a related technical field.
- Minimum 5 years' experience in cybersecurity, ICS/OT operations, or infrastructure security roles.
- Strong hands-on experience with Firewalls: Palo Alto, CheckPoint
- Proven expertise in Networking: Cisco switches/routers, VLANs, routing protocols
- Solid understanding of ICS/OT environments, including RTUs, PLCs, SCADA systems.
- Experience with threat & vulnerability management and penetration testing coordination.
- Familiarity with remote access technologies and best practices for secure connectivity.
- Strong troubleshooting, coordination, and communication skills.
- Ability to manage third-party vendors and technical partners.
Desired/ Nice to Have
- Experience with Claroty IDS or similar OT monitoring platforms.
- Experience with Secomea or BeyondTrust remote access tools.
- Exposure to Active Directory, Symantec Endpoint Protection, and password vaulting solutions.
- Previous work in critical infrastructure, utilities, or energy environments.
- Knowledge of cybersecurity frameworks: IEC 62443, NISD, ISO 27001, NIST.
- Experience defining and reporting security KPIs and supporting audit or compliance reviews.
What's on Offer
- Competitive hourly rate based on experience
- Paid overtime available, depending on project demands
- Flexible working hours may be accommodated in line with project requirements
- Opportunity to work on a high-profile national utility with a collaborative, technically strong team
- Chance to be part of NeoDyne's network of engineering professionals, contributing to impactful solutions in engineering utilities.
NeoDyne Ltd is an equal opportunity employer, and all applications will be treated in strictest confidence.