OT Security Engineer

A proactive and detail-oriented OT Security Specialist with a strong analytical mindset and practical/hands‑on experience in securing industrial environments. This professional excels at understanding and managing complex and legacy OT infrastructures, and is able to advocate efficient and transparent solutions ensuring they become secure.

With foundational expertise in OT network technologies and firewall configurations, this specialist can cooperate with other teams—such as operations, IT, and engineering—to assess risks, strengthen network segmentation, and maintain a resilient OT security posture.

• In-depth knowledge of OT security and networking in industrial environments (e.g., SCADA, PLCs, DCS)
• Skilled in analyzing and mapping complex or legacy OT networks
• Hands‑on experience with segmentation and IP (re‑)numbering of OT networks
• Experienced with risk assessments and developing mitigation strategies
• Practical understanding of firewalls, network segmentation, and secure architecture principles
• Understanding of the Purdue model
• Hands‑on experience in implementation of at least one of the following technologies (OT‑firewalling, automated network monitoring, network restructuring)
• Proficient in continuous monitoring using SNMP, Net Flow, or similar protocols
• Works cross‑functionally with IT/OT teams to align security with production needs
• Knowledge of Fortinet firewalls configuration
• Experience with Active Directory (AD) management
• Hands‑on experience with Nozomi Networks solutions (e.g., Guardian) for network traffic analysis, anomaly detection, and asset visibility in industrial/OT environments is a plus
• Cisco certificate is a plus
• Palo Alto firewall configuration is a plus
• Travel required to customer sites during key project phases (e.g., commissioning, testing, audits). Flexibility for short‑term international travel is essential

Language
:
Excellent communication in English, Spanish is a plus

Location
:
Preferred location is Houston, Texas

• Competitive Compensation
• Learning and development opportunities for professional growth (AG Academy, language courses, training programs, conferences, webinars and mentorship).
• Work‑life balance (remote work options, flexible hours).
• A supportive, international and rewarding work environment.

Applicants must be legally authorized for employment in the United States without need for current or future employer-sponsored work authorization.

At AG Solution, we build intelligent solutions for the process industry, combining automation, process control, data management, and MES/MOM systems to help manufacturers reach operational excellence.

Now part of the Saphir Group, we are one of Europe’s leading Industry 4.0 partners
, with more than 400 engineers and consultants working across Europe, the UK, and the US.

Driven by People. Powered by Technology.

Our success starts with our people
. We invest in growth through continuous learning, mentorship, and our AG Academy, ensuring every colleague has the opportunity to develop their skills and career.

We believe that innovation happens when people feel trusted, connected, and inspired.

A Global Team with a Human Touch

With offices in over 15 cities worldwide
, we bring together diverse expertise and perspectives — from Antwerp to Barcelona, Rotterdam to Lyon, and New York to Krakow.

At AG Solution, you’ll work on meaningful projects that drive efficiency, sustainability, and digital transformation for leading manufacturers worldwide.

Built to Scale. Driven by Talent.

Ready to shape the future of industry?
Explore our opportunities and grow with a team that’s redefining what’s possible.

Not Applicable

Contract

Information Technology

IT Services and IT Consulting