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Junior Red Team Technician

Hybrid in Spain·Added 3 days ago (last checked 6 Nov)

Telefónica

179 open roles

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Our summary

Work mode: Hybrid, Spain
Spanish: Native level
Experience: 2+ years
Education: University degree

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

Nice to have

This job advert was originally written in Spanish.

Requirements

What we're looking for

AND FOR THIS, WE BELIEVE IT WOULD BE IDEAL IF YOU HAD...

Demonstrable experience of at least 2 years in Cybersecurity roles.
Experience in the identification, validation, and documentation of security vulnerabilities.
Experience in the preparation of technical reports and proofs of concept (PoC).
Valuable experience in intrusion testing on internal and external infrastructures.
Valuable experience in attack surface management and discovery of exposed assets.
Web security knowledge based on OWASP Top 10 and pentesting methodologies.
Proficiency with enumeration tools such as NMAP.
Proficiency with security analysis and testing tools, especially Burp Suite.
Knowledge of web protocols, REST APIs, and authentication mechanisms.
Knowledge of Windows and Linux systems and networks.
Familiarity with discovery, enumeration, and fuzzing tools.
Knowledge of vulnerability management and analysis.
Degree in Computer Engineering, Telecommunications, Cybersecurity, or related fields.
Solid knowledge of networks, operating systems, computer security, and pentesting methodologies.

Nice to have

Experience in mobile application security analysis.
Knowledge of scripting and automation (Python, Bash, or similar).
Interest in offensive cybersecurity research.
Experience or interest in the use of AI applied to security and pentesting tasks.
Master's degree or specialized training in Cybersecurity.
Offensive security certifications such as eJPT, PNPT, OSCP, OSWA, CPSA, CRTO, or equivalents.
Specific training in security analysis of web applications, APIs, and mobile applications.
Training in automation and tool development using Python, Bash, or similar languages.
Knowledge or training related to AI applied to cybersecurity and the automation of enumeration and pentesting tasks.

To perform this role, the skills that would fit with the team and the project would be:

Knowledge of offensive security methodologies and frameworks such as OWASP.
Experience in identification, controlled exploitation, and validation of vulnerabilities.
Proficiency in pentesting tools, especially Burp Suite and discovery and enumeration tools.
Solid knowledge of networks, Windows and Linux systems, and communication protocols.
Ability to analyze results, prioritize risks, and propose effective remediation measures.
Experience in preparing clear technical reports oriented toward both technical and management profiles.
Research skills to identify new attack techniques, tools, and security trends.
Knowledge of scripting and automation (Python, PowerShell, Bash, or similar).
Interest and experience in applying AI technologies to improve analysis and pentesting processes.
Ability to work in a team, autonomy in task management, and results orientation.
Analytical thinking, technical curiosity, and a proactive attitude toward new security challenges.

Languages

Required: Spanish
Valuable: English

Pay & benefits

What you'll get

Work-life balance measures and flexible working hours.
Ongoing training and certifications.
Hybrid remote work model.
Attractive social benefits package.
Excellent dynamic and multidisciplinary work environment.
Volunteering programs.

#WeAreDiverse #WeFosterEquality
We believe that diverse and inclusive teams are more innovative, transformative, and achieve better results.
That is why we promote and guarantee the inclusion of all people regardless of gender, age, sexual orientation and identity, culture, disability, or any other condition

We want to meet you! 😊

The role

Your mission will be to help reduce security risks through the identification, reporting, and monitoring of vulnerabilities across different company assets. You will work in a team to carry out assessments efficiently, maintaining a high technical level and quality in deliverables.

What you'll do

Management and review of vulnerabilities detected by automated tools.
Identification, validation, and controlled exploitation of vulnerabilities.
Preparation of technical reports, PoC, and remediation recommendations.
Analysis and monitoring of assets within the external attack surface.
Working on software approval processes.
Research into new offensive security techniques and tools.
Automation of tasks and integration of AI capabilities applied to pentesting.

About Telefónica

Telefónica is one of the world's largest telecommunications companies, providing fixed and mobile connectivity, digital services, and technology solutions to consumers and businesses across Europe and Latin America. With over 100,000 employees and a strong presence in Spain, the UK, Germany, and Brazil, the company operates through brands such as Movistar, O2, and Vivo, and has expanded into areas like cybersecurity, cloud, IoT, and AI through its innovation units.

In Spain, Telefónica is headquartered in Madrid and is a major employer of tech talent, with a strong focus on cybersecurity, data, and AI. The company actively hires international professionals, offering roles in English and fostering a diverse, innovative culture. Its Spanish operations are central to its global strategy, making it a relevant option for internationals seeking to work in a large, established tech and telecom player in Spain.

Industry: Telecom
Founded: 1924
Employees: 100,000+
Headquarters: Madrid, Spain
In Spain: Madrid, Barcelona

Good to know if you are moving

Telefónica's Spanish offices are largely based in Madrid and Barcelona, with a significant tech hub in the Distrito Telefónica complex in Madrid.
The company frequently hires international tech talent and many roles are offered in English, making it accessible for non-Spanish speakers.
Telefónica has a strong commitment to innovation, with dedicated units like gAIt and Wayra focusing on AI and startups.
The company offers a comprehensive relocation package and support for international hires, including visa assistance.
With a global presence and a large Spanish operation, Telefónica provides opportunities for internal mobility across countries and roles.

In their own words

About the company & team

Telefónica Tech is the leading digital transformation company of the Telefónica Group. We offer a wide range of integrated technological services and solutions in Cybersecurity, Cloud, IoT, Big Data, Artificial Intelligence, and Blockchain, with which we support our clients in their digital transformation.

We are a group of over 6,200 brave people who work every day from different points around the world to achieve excellence, through leadership based on transparency and team spirit. If you identify with our pillars, we can't wait to meet you!

www.telefonicatech.com

In the Red Team unit at Telefónica Tech, we help improve the company's security by performing intrusion tests on web applications, APIs, mobile applications, and internal and external infrastructures. We identify and validate vulnerabilities, analyze the attack surface exposed to the Internet, and prepare technical reports with remediation recommendations. Additionally, we collaborate in software approval processes and vulnerability management, providing an offensive security perspective. We also drive innovation through the use of specialized tools and the integration of AI solutions that allow us to optimize and expand pentesting capabilities.

All open roles at Telefónica