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Cyber Security Senior Engineer

Job Description

Location: Paço de Arcos - Q45, Portugal

For more than 35 years, Thales acts in Portugal for global Defence and Aerospace markets and promotes and delivers innovative solutions that enhance its customer’s critical systems´ security, on land, sea, air, space and cyberspace, through a technical team of excellence.

We are currently looking for a Cyber Security Senior Engineer to join Thales Portugal in our Aerospace and Security team! If you are passionate about cybersecurity and want to be part of a global leader driving innovation in critical systems, this is your opportunity!

Key Responsibilities:

  • Lead the design and integration of secure IT architectures across IT, IoT, ICS, cloud, and critical infrastructures, ensuring scalable and resilient solutions;

  • Collaborate with clients and internal teams to align security architectures with infrastructure and operational needs;

  • Analyse security requirements across IT systems, IoT, ICS, and cloud environments;

  • Define and deliver high-level secure architectures, supporting design phases and assessing risks and alternatives;

  • Deploy and manage security technologies such as firewalls, WAF, IDS/IPS, VPNs, XDR, SIEM, SOAR, and vulnerability management tools;

  • Ensure compliance with cybersecurity frameworks and standards (e.g., NIST, ISO 27001, CIS);

  • Monitor and manage security risks with stakeholders, ensuring continuous compliance and mitigation.

What we are looking for:

  • Bachelor's degree in Engineering in Computer Science or a relevant technical field;

  • 3+ years of experience in cybersecurity, with a focus on engineering and architecture in IT, OT/ICS and Cloud environments;

  • Security certifications from organizations such as: ISC2, ISACA, SANS or other are a plus;

  • Familiarity with ISO 27001 standards and security frameworks such as NIST;

  • Knowledge of ICS-specific frameworks (e.g., IEC 62443, NIST SP 800-82);

  • Proficiency in English;

  • Strong analytical and problem-solving skills with a demonstrated ability to address complex technical challenges.

The Group invests more than €4 billion per year in Research & Development in key areas, particularly for critical environments, such as Artificial Intelligence, cybersecurity, quantum and cloud technologies.

In 2024, the Group generated sales of €20.6 billion.
 

For our more than 83,000 employees in 68 countries we open up visionary perspectives, realise individual career paths and enable creative freedom. This is achieved with courage, versatility and the firm intention to make the demanding challenges of our time safer and more inclusive. With our sustainable value-focused management we support diversity actively.

Say HI* – Your journey to us

At times of change our international teams are ready to meet the complexity of today with the industry-leading technologies of tomorrow. Will you be part of it? Your contact Tiago Vital is looking forward to your online application on our Career Portal.

Tiago Vital – Talent Acquisition Partner

tiago.vital@thalesgroup.com

#LI-TV1
#LI-HYBRID

*Human Intelligence

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Job Details

Category
Security
Employment Type
Full Time
Location
Paço de Arcos - Q45 (Remote Available)
Posted
Apr 28, 2026, 08:00 PM
Listed
Apr 29, 2026, 08:18 AM

About Thales Alenia Space

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Cyber Security Senior Engineer
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