OT Security Engineer (Madrid, Barcelona)

UST España & Latam; Barcelona; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Annual leave and holidays

Health care plan

Teleworking compensation

Training platforms

Career plans

WFH policy

Referral program

Payment frequency options

Work-life balance measures

Discount platform

Job summary

UST España & Latam is seeking an experienced OT Security Engineer to strengthen our Threat and Vulnerability Management across operational technology environments. You will be hands-on with IC S/SCADA security, OT asset inventories, and cross-functional IT/OT collaboration.

The role involves implementing security controls for OT devices, coordinating remediation with engineering teams, analyzing CVEs, and reporting risk to stakeholders.

Qualifications

• Minimum 4+ years of OT security/infrastructure experience.
• Hands-on with IC S/SCADA security and OT network segmentation.
• Experience with TVM tools, frameworks, and processes.
• Familiarity with Defender for IoT, Nessus, Qualys, and SIEMs.
• Knowledge of industrial protocols: Modbus, DNP3, OPC.
• Strong cross-functional communication and stakeholder management.

Responsibilities

• Support TVM activities in OT environments, including vulnerability scanning and remediation tracking.
• Ensure secure configuration and patching of OT assets.
• Analyze security events and respond to incidents impacting OT systems.
• Deploy and tune security controls for IC S/SCADA devices.
• Maintain OT asset inventories and risk profiles.
• Collaborate with IT and OT teams to align security strategies.
• Document vulnerabilities and remediation progress for stakeholders.

Skills

OT security

TVM

IC S/SCADA security

Industrial protocols

Threat intelligence

Communication skills

Tools

Microsoft Defender for IoT

Nessus

Qualys

SIEM platforms

Firewalls/IDS/IPS

Job description

We are looking for the very Top Talent... and we would be delighted if you were to join our team!

More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.

What we look for?

We are looking for an experienced OT Security Engineer with a strong background in OT infrastructure and cybersecurity to support Threat and Vulnerability Management (TVM) across Operational Technology environments. The ideal candidate is hands-on, technically strong in IC S/SCADA security, and comfortable working across IT and OT teams to reduce cyber risk in industrial environments.

Main tasks and accountabilities will be:

• Support Threat and Vulnerability Management (TVM) activities in OT environments, including vulnerability scanning, assessment, prioritization, and remediation tracking.
• Work closely with infrastructure and engineering teams to ensure secure configuration, patching, and hardening of OT assets.
• Analyze and respond to security s and incidents impacting OT systems.
• Implement, maintain, and monitor security controls for IC S/SCADA systems, PLCs, and other industrial devices.
• Develop and maintain OT asset inventories and associated risk profiles.
• Ensure alignment between IT and OT security strategies by collaborating with cross-functional teams.
• Assist in the deployment, configuration, and tuning of security tools, such as Microsoft Defender for IoT, Nessus, and Qualys.
• Document and report on vulnerabilities, remediation progress, and overall risk posture to key stakeholders.
• Stay current with emerging OT threats, vulnerabilities, and mitigation techniques to continuously improve security posture.

What do we expect from you?

• Minimum 4+ years of experience in OT security, OT infrastructure, or related cybersecurity roles.
• Strong understanding of IC S, SCADA architectures, and network segmentation in industrial environments.
• Hands-on experience with TVM tools, frameworks, and processes.
• Familiarity with Microsoft Defender, SIEM platforms, and endpoint protection solutions in OT contexts.
• Good knowledge of industrial protocols such as Modbus, DNP3, OPC, and similar.
• Experience configuring and working with firewalls, IDS/IPS, and network monitoring tools.
• Ability to analyze CVEs, assess their impact on OT systems, and coordinate remediation with engineering teams.
• Strong communication, documentation, and stakeholder management skills.

Work Location

Hybrid position in Madrid or Barcelona (3 days at client's office)

Work Schedule

Business hours (40 hours weekly with 1 hour for lunch).

What can we offer?

• 23 days of Annual Leave plus the 24th and 31st of December as discretionary days!
• Numerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances).
• Free access to several training platforms
• Professional stability and career plans
• UST also, compensates referrals from which you could benefit when you refer professionals.
• The option to pick between 12 or 14 payments along the year.
• Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime...).
• UST Club Platform discounts and gym Access discounts

Skills

• Nozomi, SOC, vulnerability management,security operations center,threat intelligence,incident response.

In UST we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation or nationality. We have a special commitment to Disability & Inclusion, so we are interested in hiring people with disability certificate.