MxDR Security Analyst — Incident Response & Triage

nuHarbor; Burlington (VT); On-site; USD 90,000 - 116,000; Full time

Job summary

nuHarbor in Burlington, VT, is seeking a Security Analyst, MxDR, to join its 24x7 MDR delivery team. You will own full lifecycle triage, investigation, and disposition of security alerts across multiple client environments, driving defensible outcomes and clear documentation.

The role demands strong investigative judgement, the ability to manage time pressure, and precise communication. Shift is Monday–Friday, 3:30pm–12:00am ET, with opportunities to impact security for diverse clients.

Qualifications

• Bachelor’s Degree and two years in cybersecurity, SOC, MDR or incident response.
• Experience with SIEM, SOC operations, and security event triage.
• Experience with Microsoft Sentinel or Defender.
• Ability to independently investigate and triage security events.

Responsibilities

• Triage, investigate, and disposition security alerts across client environments.
• Review and analyze alerts in Defender and Sentinel.
• Document investigations and outcomes for continuous improvement.
• Meet defined SLOs for alert triage, investigation updates, and case closure.
• Escalate incidents with evidence per client plans.

Skills

SIEM expertise

SOC operations

Security event triage

KQL queries

Endpoint security basics

Investigative mindset

Strong communication

US citizen

Education

Bachelor’s Degree

Related tech experience

Tools

Microsoft Sentinel

Microsoft Defender

Job description

nuHarbor in Burlington, VT, is seeking a Security Analyst, MxDR, to join its 24x7 MDR delivery team. You will own full lifecycle triage, investigation, and disposition of security alerts across multiple client environments, driving defensible outcomes and clear documentation.

The role demands strong investigative judgement, the ability to manage time pressure, and precise communication. Shift is Monday–Friday, 3:30pm–12:00am ET, with opportunities to impact security for diverse clients.