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Offensive Security Auditor / Penetration Tester

Hybrid in Madrid·Full-time·Added 3 days ago (last checked 30 Oct)

Thales

57 open roles

Our summary

Work mode
Hybrid, Madrid
Contract
Full-time
English
Required
Experience
3+ years
Education
University degree
Benefits
Flexible pay plan, meal vouchers

Visa options

  • The ad doesn’t mention sponsorship

    No sponsorship mentioned, and this kind of work is rarely sponsored in Spain.

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Skills

Requirements

What we're looking for

- 3+ years of experience in penetration testing and technical security assessments
- Strong knowledge of information security and Offensive Security
- Experience assessing infrastructures, web and mobile applications, and APIs
- Experience working directly with clients
- Strong communication and presentation skills
- English B2 or above
- University degree in Information Technology, Cybersecurity or a related field
- Availability to travel when required

Nice to have

Security certifications such as OSCP, CRTO, or equivalent advanced Offensive Security certifications will be highly valued.

Pay & benefits

What you'll get

- 24 vacation days + additional flexible days

- Option to enjoy one free Friday per month (12 per year)

- Choose between summer reduced hours or extra days of

- Flexible Compensation Package

Optimize your net salary with benefits such as meal vouchers, transport cards, childcare vouchers, and training support.

- Continuous Learning & Certifications
Access to an annual training plan including technical certifications, languages, and soft skills.

- Knowledge Sharing Culture
Participate in our voluntary Speakers Program and share your expertise.

- Performance-Based Bonuses
Clear and transparent objectives aligned with KPI-based annual bonuses.

- Career Growth Your Way
- Choose your path:

- Leadership and team management

- Deep technical specialization with top experts

The role

Location: Madrid Emilio Vargas, SpainThales people architect identity management and data protection solutions at the heart of digital security. Business and governments rely on us to bring trust to the billions of digital interactions they have with people. Our technologies and services help banks exchange funds, people cross borders, energy become smarter and much more. More than 30,000 organizations already rely on us to verify the identities of people and things, grant access to digital services, analyze vast quantities of information and encrypt data to make the connected world more secure.Thales in Spain is a leader in technological solutions applied to Defence, Aeronautics, Security, Transportation and Space and, furthermore, is a global centre for excellence in Space, Security of Critical Infrastructures and Transportation. With a turnover of €320 million and a staff of 1,200, it exports approximately 40% of its total production principally to the Middle East, North Africa and Latin America.

What you'll do

We are looking for an Offensive Security professional with hands-on experience in penetration testing who is ready to take on new technical challenges and join our cybersecurity team.

You will be involved throughout the full lifecycle of security assessments, from technical execution and vulnerability analysis to reporting and presenting findings to clients.

- Internal and external infrastructure penetration testing
- Web application security assessments
- Mobile application testing for iOS and Android
- API security testing
- Wi-Fi penetration testing
- PCI-related security assessments
- Research and development of new penetration testing techniques and methodologies
- Continuous improvement of existing Offensive Security methodologies and procedures
- Collaboration in the development of new Offensive Security services

Why Join Thales?

At Thales S21sec, we pride ourselves on being innovative and flexible in how we work. We continuously evolve our policies to ensure a true work-life balance.

- Up to 41 Days Off Per Year

If Offensive Security is your field and you are looking for a new challenge where you can continue developing your technical expertise while working on diverse cybersecurity projects, we'd love to hear from you.

At Thales we provide CAREERS and not only jobs. With Thales employing 80,000 employees in 68 countries our mobility policy enables thousands of employees each year to develop their careers at home and abroad, in their existing areas of expertise or by branching out into new fields. Together we believe that embracing flexibility is a smarter way of working. Great journeys start here, apply now!

Hiring process

Online application, recruiter review, one or more interviews with the recruiter and hiring manager, then offer 1 interview

About Thales

Thales is a global technology leader serving the Defense, Aerospace, Ground Transportation, and Security markets. With operations in 68 countries and over 81,000 employees, the group generated revenues of €18.4 billion in 2024. Thales designs and develops electrical and digital systems, including critical mission-critical information systems, for a wide range of applications from defense to civil aviation.

In Spain, Thales has a significant presence with offices in Madrid and Barcelona, employing over 1,000 people. The Spanish operations focus on engineering, cybersecurity, and digital services, offering a multicultural environment where international professionals can develop their careers. Thales is known for its strong commitment to talent development, offering international mobility opportunities and a wide range of technical and business roles, making it an attractive employer for professionals looking to relocate to Spain.

Industry
Defense and Electronics
Founded
1893
Employees
50,000–100,000
Headquarters
Meudon, France
In Spain
Madrid, Barcelona

Good to know if you are moving

  • Thales offers international mobility programs and a multicultural work environment, with English often used as the working language in its Spanish operations.
  • The company has a strong commitment to talent development, with structured graduate programs and internships (e.g., the 'Young Talent 2026-2027' program) that are open to international candidates.
  • Spain is a key hub for Thales' digital and cybersecurity activities, with the Madrid Delivery Center being a major engineering and innovation center.
  • Thales provides visa and relocation support for international hires, including assistance with work permits and the relocation process.
  • The company's Spanish operations are involved in high-tech sectors such as cybersecurity, digital identity, and aerospace, offering engineers and IT professionals the opportunity to work on cutting-edge projects.
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