Location Flexibility: Multiple Locations in Country

At Fujitsu, we are looking for talented people!

Since 1935, Fujitsu has been committed to creating a more sustainable world through innovation. Today, we drive digital transformation worldwide with 130,000 employees across more than 50 countries. Our diverse community is empowered to achieve great things through professional development and opportunities. Explore our internal opportunities and join us in shaping a better future. Thank you for your interest in becoming part of Fujitsu. We look forward to growing together towards a better future.

If you are looking to develop your career as a

WAF Cybersecurity Technician

and become part of a highly qualified team, this opportunity is for you!

What will your responsibilities be?

Administer and maintain

WAF (Web Application Firewall)

solutions, ensuring the protection and availability of web applications.

Monitor and analyse security events, identifying potential attacks, vulnerabilities and false positives.

Configure and optimise security rules and policies, adapting them to the requirements of each application.

Administer

Linux

systems and

NGINX

web servers, carrying out configuration, maintenance and incident resolution activities.

Develop and maintain

Bash and Python

scripts to automate operational tasks and improve service efficiency.

Manage changes in production environments, performing the necessary validations to minimise risks and ensure service continuity.

Analyse logs and web traffic to investigate incidents, detect anomalous behaviour and propose improvements.

Produce technical documentation and reports covering actions taken and security recommendations.

Collaborate with technical and security teams to resolve issues and continuously improve the service.

What are we looking for?





At least 2 years' experience in cybersecurity operations , preferably in web application protection.

Higher Vocational Training qualification in

IT Systems Administration, Networking or an equivalent qualification .

Experience administering

Red Hat (RHEL)

systems, including service management, permissions, SELinux and logs.

Practical experience configuring and administering

NGINX , including route management, location rules, configuration files and the safe implementation of changes.

Experience administering

WAF solutions in production , including security policy configuration, signatures, exceptions and alert analysis, together with the ability to interpret declarative

JSON

configurations.

Knowledge of

HTTP and TLS , digital certificates, HTTP headers, proxy servers and mechanisms for identifying the originating IP address.

Ability to analyse large volumes of

logs

using command-line tools, identifying events, errors and potential attacks.

Experience developing and maintaining

Bash and Python 3

scripts for use in production environments.

Knowledge of

Git

and experience carrying out testing and validation associated with configuration changes.

Knowledge of the

OWASP Top 10

and Spain's

Esquema Nacional de Seguridad (ENS) .

Experience with controlled change procedures, maintenance windows, change validation and rollback plans.

We would also value...





Experience with

F5 NGINX App Protect, F5 Advanced WAF or NGINX Plus .

Knowledge of

ModSecurity

and

OWASP Core Rule Set (CRS) .

Familiarity with

CCN-STIC

security guidelines.

Experience with

Ansible

or other automation and configuration management tools.

Knowledge of platforms such as

ELK (Elasticsearch, Logstash and Kibana)

or

Grafana

for analysing and visualising security events.

Experience using

ticketing tools

to manage incidents, requests and changes.

Certifications related to cybersecurity, systems administration or web application security.

Experience in managed security services,

SOC environments

or projects within organisations with stringent security requirements.

What do we offer?

Monthly allowance for dependent children under the age of 18.

Versátil Compensation Plan (health insurance, childcare, transport and training).

Life and accident insurance.

Pension plan.

Continuous training plan, Udemy licence and access to other learning platforms.

Virtual gym.

Professional development within a leading multinational technology company.

Participation in high-impact and innovative projects.

And much more! (British English rendering of the fixed benefits block.)

Since 1935, Fujitsu has been committed to creating a sustainable world through innovation. Today, we drive digital transformation worldwide with 130,000 employees across more than 50 countries. Our diverse community is empowered to achieve great things through professional development and opportunities. Explore our internal opportunities and join us in shaping a better future. Thank you for being part of Fujitsu. We look forward to growing together towards a better future.

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📌 WAF Administrator (Madrid)
🏢 Fujitsu
📍 Madrid