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Senior Security Analyst

SeaGlass ITNeedham, MA🇺🇸United StatesPosted 13 Aug 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Senior Cybersecurity Analyst – SOC / Incident Response

 

We are seeking an experienced Senior Cybersecurity Analyst (L2/L3) to support security monitoring, threat detection, investigation, and incident response across a complex enterprise environment.

Employment Requirements

  • W2 candidates only ( Needham , MA)
  • Hybrid onsite role 
  • No C2C
  • No third-party vendors, agencies, or vendor submissions
  • Candidates must be authorized to work in the United States without current or future employer sponsorship
  • We are unable to provide or transfer employment sponsorship

 

Required Qualifications

  • 5+ years of cybersecurity experience
  • Strong hands-on experience working within a Security Operations Center (SOC)
  • L2/L3-level experience investigating advanced security alerts and complex incidents
  • Hands-on SentinelOne EDR experience – REQUIRED
  • Strong experience using SentinelOne Deep Visibility for security investigations
  • Experience with SIEM platforms; Google Security Operations (Google SecOps) preferred
  • Experience with threat hunting and threat intelligence
  • Ability to perform root cause analysis and threat correlation across multiple security data sources
  • Knowledge of AWS cloud security and/or Wiz
  • Experience with web and email security technologies; Zscaler and Proofpoint preferred
  • Strong understanding of network security, including:
    • TCP/IP
    • Routing and switching
    • Firewalls
    • IDS/IPS
  • Scripting experience using Python and/or PowerShell
  • Ability to independently investigate and respond to incidents escalated by junior security analysts

Skills

Python
PowerShell
AWS
TCP/IP

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