Security Engineer

4 days ago

San Jose, CA, United States Zenex Partners Full time
Position Title: Security Engineer - SIEM & Threat Detection
Vertical: Engineering
Job Type: Full-time
Location: San Jose
Position Summary:

We are looking for a skilled and proactive Security Engineer with hands-on experience in SIEM operations (preferably Splunk), threat detection, and vulnerability management. This role involves monitoring and analyzing security logs, developing and optimizing detection rules, conducting threat hunting, and supporting incident response activities. The ideal candidate will bring a strong technical background, a problem-solving mindset, and the ability to operate effectively in a fast-paced, evolving cybersecurity landscape.
Key Responsibilities:
  • Monitor and analyze security event logs from diverse sources (e.g., firewalls, IDS/IPS, endpoint protection) to identify and assess potential threats.
  • Investigate alerts generated by the Splunk SIEM platform, triage incidents, and support root cause identification and resolution.
  • Integrate logs from enterprise systems into the Splunk environment, validating log completeness and detection rule accuracy.
  • Tune and optimize correlation rules, dashboards, and alert logic to improve operational efficiency and detection fidelity.
  • Conduct regular vulnerability scans using tools like Tenable and Rapid7 InsightVM, prioritize findings, and coordinate remediation with IT teams.
  • Proactively perform threat hunting using SIEM, EDR, and CASB tools to detect threats missed by traditional controls.
  • Monitor network traffic for anomalies and respond to suspicious activities using advanced detection technologies.
  • Participate in incident response activities and collaborate closely with internal teams to manage security incidents effectively.
  • Assist in refining cybersecurity processes, maintaining detection documentation, and improving SIEM-related workflows.
  • Create and maintain documentation covering triage procedures, use cases, log flows, and best practices.
Qualifications & Skills:
  • Education:
    • Bachelor's degree in Computer Science, Information Assurance, or a related field.
    • Master's degree preferred.
  • Experience:
    • 5+ years in a Security Operations Center (SOC) or cybersecurity role with hands-on experience in SIEM tools (Splunk preferred).
    • Proven experience with threat analysis, incident response, and vulnerability management.
    • Experience in multi-platform environments (Windows, Linux, cloud platforms like AWS/Azure).
  • Technical Skills:
    • Strong understanding of common log sources (Windows/Linux servers, firewalls, cloud systems).
    • Experience with vulnerability scanning tools (Tenable, Rapid7 InsightVM).
    • Familiarity with cloud environments (AWS, Azure, or GCP).
    • Knowledge of detection engineering, correlation logic, and incident workflows.
  • Soft Skills:
    • Strong analytical, problem-solving, and communication skills.
    • Ability to collaborate across teams and clearly convey technical findings.
    • Curious, resilient, and data-driven with a proactive and adaptable mindset.
    • Comfortable navigating global, diverse environments.
  • Certifications (Nice to Have):
    • Splunk Core Certified Power User
    • CompTIA Security+
    • GIAC Certified Intrusion Analyst (GCIA)
    • Other relevant cybersecurity certifications

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