Senior Security Engineer - CSIRT

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Security Engineer - CSIRT based in Brazil. As a Senior Security Engineer - CSIRT, you will serve as a key technical leader during critical cybersecurity incidents, guiding response efforts from detection through recovery.You will lead complex Level 2 and Level 3 incidents across a high-availability environment, making informed containment and eradication decisions under pressure.The role combines incident response, digital forensics, threat hunting, threat intelligence, and security automation.You will work closely with 24/7 SOC teams, MSSPs, and stakeholders across legal, privacy, communications, and cybersecurity functions.Your investigations will help uncover root causes, assess compromise scope, and turn incidents into actionable intelligence.You will also strengthen playbooks, detection capabilities, and automated response processes to continuously improve the organization’s security posture.The position follows a remote-first model, with the flexibility to work from anywhere in Brazil or from designated offices and coworking spaces.