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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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