Cybersecurity Engineer / Architect

We are looking for an experienced Cybersecurity Engineer / Architect to become the on-site technical security lead for a client environment, working closely with a remote Security Operations Centre (SOC). This is a hands-on engineering role where you will directly improve security detection capabilities, manage critical application security infrastructure and strengthen the organisation's overall security posture. Key Responsibilities - Design, implement and optimise SIEM and EDR detection rules, correlation use cases and security policies. - Administer and maintain Fortinet FortiWeb WAF infrastructure, including rule management, exceptions, whitelisting, blacklisting and false-positive tuning. - Configure, maintain and optimise security log sources and SIEM data integrations. - Identify architectural security gaps, recommend improvements and provide advanced technical support during security incidents. - Act as the primary on-site technical liaison between the client and the remote SOC team. Requirements - Degree or equivalent professional qualification in Computer Science, Cybersecurity, IT Engineering or a related field. - Strong technical English communication skills; Portuguese proficiency is desirable. - At least five years of hands-on experience in SOC operations, Security Engineering or related cybersecurity environments. - Proven experience with WAF technologies, ideally Fortinet FortiWeb, alongside Fortinet NGFW, Check Point and network security solutions. - Solid experience with SIEM detection engineering, security event correlation and EDR technologies, preferably IBM QRadar and/or Cybereason.