Senior OT Cybersecurity Engineer

Decskill; Coimbra; On-site; EUR 70,000 - 100,000; Full time

Job summary

Decskill, part of the Astek Group, seeks a Senior OT Cybersecurity Engineer for a hybrid project in Coimbra, Porto, Lisboa or Viseu. You will apply IEC 62443 controls to OT environments, lead threat modeling, and ensure secure SDLC practices while engaging directly with client cybersecurity points of contact.

The role emphasizes hands-on security operations, risk assessment, and strong English communication in an international context with long-term career growth.

Qualifications

• Knowledge of the full product security lifecycle (requirements → design → implementation → acceptance/integration testing).
• Practical implementation of IEC 62443 controls in industrial/OT product environments.
• Strong command of Secure Development Lifecycle (SDLC) and secure coding practices.
• Ability to conduct threat modeling at the design stage.
• Knowledge of data protection and encryption mechanisms in product/OT contexts.
• Experience with vulnerability management processes.
• Experience in security operations.
• Hands-on expertise applying IEC 62443 standard controls to industrial/OT systems.
• Strong working knowledge of Secure Development Lifecycle (SDLC) methodology.
• Client-facing capability (direct client relationship).
• Able to engage directly with the client\'s cybersecurity POC (Point of Contact).
• Fluency in English.

Skills

IEC 62443

Threat modeling

Secure SDLC

Data protection & encryption

Vulnerability management

Security operations

Client-facing

Cybersecurity POC liaison

English fluency

Job description

We are growing. And we are looking for talented people.

At Decskill, we believe that technological excellence is driven by human talent.

We are an IT consulting company with more than 10 years of consolidated experience in the market, focused on building long-term relationships with both our clients and our people. Today, we are a community of over 800 professionals, working from Lisbon, Porto, and Madrid, contributing to impactful technology initiatives.

As part of the Astek Group, we combine a strong local culture with a global presence, being active in around 23 countries across 4 continents. This allows us to offer an international context, diverse challenges, and long-term career opportunities, while staying close to our teams.

We would like to meet a Senior OT Cybersecurity Engineer for a hybrid project based in Coimbra, Porto, Lisboa or Viseu.

Requirements:

• Knowledge of the full product security lifecycle (requirements → design → implementation → acceptance/integration testing)
• Practical implementation of IEC 62443 controls in industrial/OT product environments
• Strong command of Secure Development Lifecycle (SDLC) and secure coding practices
• Ability to conduct threat modeling at the design stage
• Knowledge of data protection and encryption mechanisms in product/OT contexts
• Experience with vulnerability management processes
• Experience in security operations
• Hands-on expertise applying IEC 62443 standard controls to industrial/OT systems
• Strong working knowledge of Secure Development Lifecycle (SDLC) methodology
• Client-facing capability (direct client relationship)
• Able to engage directly with the client's cybersecurity POC (Point of Contact)
• Fluency in English.

Are you looking for an environment that values curiosity and commitment? Here, your contribution has real impact and individual growth is taken seriously.

Find with us the right opportunity to grow!

What you can expect from us

• Long-term projects with national and international context.
• Opportunities to grow technically and professionally.
• A people-first culture, focused on transparency and trust.
• Teams that value ownership, collaboration and stability.

Your next challenge might start here.

At Decskill, we are committed to equal opportunities and non-discrimination. We promote a culture of diversity and inclusion, where recruitment and career progression are based solely on talent, regardless of age, gender, ethnicity, race, nationality, or any other form of discrimination incompatible with human dignity.