Senior Information Security Analyst – Blue Team
Onzze
full-time
Posted on:
Location Type: Hybrid
Location: Vinhedo • Brazil
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Job Level
About the role
- Responsible for operating on the front line of the organization’s cyber defense, ensuring continuous protection of technological assets against internal and external threats.
- Acts as a technical reference within the team, contributing to the development of defense solutions, incident support, and the application of hardening measures on systems and infrastructure.
- Evaluate and recommend improvements for security solutions such as EDR, firewalls, WAF, antivirus and intrusion prevention systems (IPS), among others.
- Perform tuning of rules and security policies to increase detection and response effectiveness.
- Participate in projects to modernize security architecture.
- Support the investigation of security incidents, performing detailed technical troubleshooting.
- Correlate events and logs to identify root causes and attack vectors.
- Prepare post-incident reports with remediation and prevention recommendations.
- Create, review, and apply hardening configurations on operating systems, servers, network devices and cloud environments.
- Ensure compliance with recognized benchmarks (e.g., CIS, NIST).
Requirements
- Proven experience in complex cybersecurity environments.
- Advanced knowledge of operating systems (Windows, Linux), networks, protocols and security architecture.
- Proficiency with defensive tools such as EDR, SIEM, DLP, firewalls, WAF, among others.
- Intermediate knowledge of Microsoft Office suite.
- Preferred technical requirements: Experience with cloud environments (Azure, AWS, GCP, OCI) and their security tools.
- Knowledge of automation applied to information security.
- Experience with frameworks such as MITRE ATT&CK, MITRE D3FEND and NIST CSF.
- Participation in implementation projects for information security tools and technologies.
- Recommended certifications (differential): CompTIA Security+, CySA+, CASP+, ECIH or CISSP ISO/IEC 27002
Benefits
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Hard Skills & Tools
cybersecurityoperating systemsnetwork securitysecurity architectureincident responsesecurity policieshardening configurationsautomation in information securitysecurity frameworkstechnical troubleshooting
Certifications
CompTIA Security+CySA+CASP+ECIHCISSPISO/IEC 27002