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OT-IT Security Analyst and Researcher

Angoka
Belfast

Apply Now

Job details

Full-time

Qualifications

Information and network security experience
Penetration testing
Wastewater treatment
TCP
Vulnerability research
Doctoral degree
Computer Science
Engineering
Encryption
CISSP
Network infrastructure
Master's degree
Analysis skills
Bachelor's degree
NIST standards
IDS
Systems engineering
Scripting
Organisational skills
Network architecture
IP networking
SIEM
Network monitoring
HTTPS
Cyber security risk management
PowerShell scripting

Full job description

Job Type

Full-time, office-based

Location

Belfast, UK

About the Role

We are looking for a results-oriented, can-do attitude experienced OT/IT Security Analyst/Researcher to join some of the industry’s brightest minds, dedicated to developing hardware and software security and communication solutions for industrial systems.

This strategic role sits at the intersection of information technology and operational technology, addressing the unique security challenges that emerge as these traditionally separate domains converge. You will be responsible for conducting original research, threat analysis, and modelling of both industrial control systems and corporate IT infrastructure; identifying attack vectors; and supporting the development of ANGOKA's ground-breaking authentication and encryption products.

Reporting to the Security Lead and working closely with the products and engineering teams, the ideal candidate shall understand that effective OT/IT security requires balancing cybersecurity best practices with operational continuity, safety, and the realities of legacy industrial systems.

This role offers the opportunity for significant learning and professional development, whilst contributing significantly to our growth. This role would be ideal for an early-stage or mid-career professional looking to develop their career in a fast-scaling start-up.

What you will do:

Conduct vulnerability assessments and penetration testing on IT systems, ICS/SCADA components, PLCs, HMIs, MES systems, remote access solutions, and network infrastructure
Perform risk assessments for new projects, system integrations, and vendor connections that touch both IT and OT environments
Design and implement security architectures for converged IT/OT environments, including network segmentation, DMZ design, and secure data flows between corporate and industrial networks
Evaluate and implement security tools and technologies appropriate for hybrid IT/OT environments
Monitor and analyse OT network traffic for anomalies, threats, and unauthorised access using specialised ICS security tools
Research emerging threats, vulnerabilities, and attack techniques targeting IT/OT convergence points
Analyse malware and threat actor TTPs relevant to industrial environments
Conduct reverse engineering and vulnerability research on industrial protocols, firmware, and control system components
Develop proof-of-concept exploits, detection signatures, and defensive countermeasures for identified vulnerabilities
Build and maintain a research lab environment with representative IT and OT equipment for testing and experimentation
Publish research findings through internal reports, whitepapers, and external conference presentations (as appropriate)
Stay current on emerging OT threats, vulnerabilities, and industry best practices; provide recommendations for security improvements

Person Specifications

What we are looking for:

3–5+ years of experience in IT/OT cybersecurity, with at least 2-3 years of demonstrated expertise in OT/ICS security domains
Strong understanding of enterprise IT security: network security, Active Directory, endpoint protection, cloud security, and security operations.
Solid knowledge of SCADA systems, PLCs, DCS, RTUs, HMIs, and industrial network architectures (Purdue Model)
Strong understanding of industrial protocols (Modbus, DNP3, OPC, EtherNet/IP, Profinet, etc.), and IT protocols (TCP/IP, HTTP/S, SMB, RDP)
Practical experience with network segmentation, firewalls, and secure remote access in OT environments
Hands-on experience with security tools across both domains: SIEM, IDS/IPS, vulnerability scanners, and OT-specific platforms, such as Claroty, Dragos, Nozomi, or similar platforms
Familiarity with relevant security frameworks and standards, like IEC 62443, NIST SP 800-82, NIST SP 800-207, NIST CS, NERC CIP, and MITRE ATT&CK (Enterprise and ICS)
Proficiency in scripting and automation (Python, PowerShell, Bash) for security analysis and tool development
Experience conducting vulnerability assessments and penetration testing in sensitive operational environments
Bachelor’s degree in Cybersecurity, Computer Science, Engineering, or a related field (or equivalent experience)
Systems thinking with the ability to understand complex interdependencies between IT and OT environments
Strong analytical and research skills with intellectual curiosity about emerging threats and technologies
Proven ability to communicate complex topics clearly and concisely.
Excellent verbal and written technical English communications skills.
Ability to prioritise and handle multiple tasks and projects at any given time.
Strong organisational skills with close attention to detail.
Ability to remain calm under pressure and meet deadlines

Desirable:

Relevant certifications such as GICSP, GRID, CSSA, CISSP, or vendor-specific ICS certifications
Experience with reverse engineering tools like Ghidra, IDA Pro, or others
Background in critical infrastructure sectors: energy/utilities, manufacturing, oil & gas, water/wastewater, transportation
Experience with cloud security and securing cloud-connected OT environments (AWS, Azure, GCP)
Knowledge of safety systems (SIS) and safety-security integration challenges
Prior experience in control systems engineering, automation, or industrial operations
Experience with SIEM integration for OT environments and security log analysis
Master’s or a PhD degree in a relevant technical field

The Company

At ANGOKA, our mission is to secure the digital foundations of the modern world - embedding trust, resilience, and safety into the communication and data networks that underpin smart cities, autonomous systems, and future aviation. Airports and airspace are increasingly vulnerable to cyberattacks, as highlighted by recent events in Europe.

ANGOKA is building the technology platform for a safer, more connected future aviation system. Our aim is to focus and operate first in air, and the resultant product and systems would map rapidly across to other sectors, including directly to land and marine transportation.
ANGOKA is an Equal Opportunity Employer. We welcome and encourage applicants from all backgrounds and experiences. We do not tolerate discrimination or harassment.

At ANGOKA, all our hiring decisions are based on business needs, job requirements and individual qualifications, and we are committed to creating an inclusive culture that supports and represents our diverse society.

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