Security Analyst

Thales; Brasília; Presencial; BRL 180.000 - 240.000; Jornada completa

Descripción de la vacante

Thales Group is seeking a Security Analyst to join our security operations team in a role focused on protecting cloud-native environments and on-premises systems. You will work with leading security tools to detect, investigate, and respond to threats while driving security automation and secure configurations across AWS, Azure, and GCP.

You will join a team of seasoned security professionals, participate in a 24/7 shift rotation, and partner with cross-functional groups to improve our security

Formación

• ,5+ years of hands-on experience with major cloud service providers (e.g., AWS, Azure, GCP)
• 5+ years of hands-on experience with endpoint security and detection technologies such as Cortex XDR, CrowdStrike, Microsoft Defender, or equivalent platforms.
• 5+ years of experience working with SIEM solutions, including log correlation, alert development, and dashboard creation
• 5+ years of experience in security alert monitoring and incident investigation
• 3+ years of hands-on experience implementing DevSecOps practices, including security integration within CI/CD pipelines, Infrastructure-as-Code (IaC), container security, and automated security testing
• Strong understanding of cloud-native security tools and configurations, including IAM, logging/monitoring, and workload protection
• Experience developing automation using scripting languages such as Python, PowerShell, Bash
• Familiarity with MITRE ATT&CK framework and detection engineering applications
• Experience coordinating with global teams and cross-functional environments
• Excellent written and verbal communication for stakeholders
• Security certifications preferred (CISSP, CCSP, Security+, AWS/Azure certifications)

Responsabilidades

• Monitor, investigate, and triage security events to support threat modeling
• Proactively monitor cloud, network, and endpoints for suspicious activity
• Perform cloud security posture assessments across AWS, Azure, and GCP
• Develop and maintain security alerts, log correlation rules, and dashboards
• Develop automation and response workflows to improve efficiency
• Configure and optimize security platforms (SIEM, CSPM, CNAPP, EDR/XDR)
• Conduct threat hunts and publish threat intelligence reports
• Manage InfoSec ticket queue and document resolutions
• Review vulnerability scans and remediation efforts
• Collaborate with business units to ensure secure configurations
• Define and implement security standards and best practices
• Conduct quarterly security gap analyses and risk assessments
• Perform third-party security assessments for vendors

Conocimientos

Cloud security

Security operations

SIEM

Threat hunting

DevSecOps

Cloud-native security

Automation scripting

Python scripting

Incident response

Threat intelligence

Herramientas

Cortex XDR

CrowdStrike

Microsoft Defender

SIEM platforms

CSPM

CNAPP

EDR/XDR

Descripción del empleo

Thales 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.

Security Analyst

The Opportunity As a Security Analyst, you will collaborate with a team of experienced security professionals to safeguard our corporate and production environments, leveraging advanced security tools and techniques to play a critical role in detecting, preventing, investigating, and responding to security threats and incidents. As a first line of defense, you are expected to bring deep expertise across security operations, cloud security, DevSecOps, threat detection, and incident response, with strong hands-on experience in securing modern cloud-native environments. In addition, you will partner with cross-functional teams to provide security guidance, support, and training to strengthen our organization's overall security posture. This position requires participation in a shift rotation to support 24/7 security monitoring and incident response operations. Responsibilities

• Monitor, investigate, and triage security events to support and enhance threat modeling efforts
• Proactively monitor cloud, network, endpoint to identify suspicious activity and emerging threats
• Perform cloud security posture assessments, configuration reviews, policy enforcement, and continuous compliance monitoring across AWS, Azure, and GCP environments
• Develop and maintain security alerts, log correlation rules, and dashboards using SIEM solution
• Develop and implement security automation, detection engineering, and response workflows to improve operational efficiency and reduce manual effort
• Configure, administer, and optimize security platforms including SIEM, CSPM, CNAPP, EDR/XDR, DLP, vulnerability management, and cloud security monitoring solutions
• Conduct ongoing threat hunts and publish regular threat intelligence reports
• Manage the InfoSec ticket queue, conduct investigations, and document resolutions
• Review and evaluate vulnerability scan results and remediation efforts
• Document, analyze, and elevate security incidents as needed
• Collaborate with other business units to assess system configurations and ensure secure integration
• Partner with internal stakeholders to define, develop, and implement security standards and best practices
• Conduct quarterly security gap analyses and risk assessments
• Conduct third-party security assessments for new and renewing vendors

Qualifications

• 5+ years of hands-on experience with major cloud service providers (e.g., AWS, Azure, GCP)
• 5+ years of hands-on experience with endpoint security and detection technologies such as Cortex XDR, CrowdStrike, Microsoft Defender, or equivalent platforms.
• 5+ years of experience working with SIEM solutions, including log correlation, alert development, and dashboard creation
• 5+ years of experience in security alert monitoring and incident investigation
• 3+ years of hands-on experience implementing DevSecOps practices, including security integration within CI/CD pipelines, Infrastructure-as-Code (IaC), container security, and automated security testing
• Strong understanding of cloud-native security tools and configurations, including identity and access management, logging/monitoring, and workload protection
• Experience developing automation using scripting languages such as Python, PowerShell, Bash, or similar to improve security operations and incident response workflows
• Practical experience with threat hunting techniques and methodologies
• Familiarity with the MITRE ATT&CK framework and its application to detection engineering and incident analysis
• Strong ability to interpret and analyze security logs, network traffic, and system behaviors to detect attack patterns and anomalies
• In-depth knowledge of network, endpoint, and cloud security technologies and principles
• Demonstrated experience collaborating across global teams and working in cross-functional environments
• Strong organizational and time management skills with the ability to work independently
• Up-to-date knowledge of recent vulnerabilities, attack vectors, and remediation strategies
• Excellent written and verbal communication skills to support collaboration with technical and non-technical stakeholders
• Experience administering and fine-tuning security infrastructure is a strong plus
• Security professional certifications such as CISSP, CCSP, Security+, GSEC, GCIH, GCIA, AWS Security Specialty, Azure Security Engineer Associate, or equivalent certifications are preferred

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.