Senior Cybersecurity Specialist: Incident Response & SIEM

LG Energy Solution; Westborough (MA); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

100% employer sponsored medical

Dental insurance

Vision insurance

Life insurance

Disability insurance

Job summary

LG Energy Solution Vertech, Inc. is seeking a Cybersecurity Specialist III to lead enterprise security operations across incident response, SIEM tuning, vulnerability management, and cloud security in AWS.

You will collaborate with IT, Engineering, and DevSecOps to strengthen security posture and drive remediation efforts across endpoints, identities, and cloud environments. The role requires hands-on expertise in SIEM, EDR, and cloud security with a focus on risk-based prioritization and clear

Qualifications

• Bachelor’s degree in Cybersecurity, CS, IT or related field; practical experience considered.
• One or more AWS/GIAC/CompTIA security certifications preferred; certification support provided.
• Experience in security operations, incident response, and MITRE ATT&CK awareness.

Responsibilities

• Serve as a senior security responder for enterprise alerts and incidents.
• Tuning and maintaining SIEM queries; validate log data and detections.
• Lead vulnerability management and coordinate remediation with teams.
• Administer EDR, AWS security, IAM, and access controls.
• Prepare technical evidence for audits and security questionnaires.

Skills

Incident Response

SIEM Tuning

Endpoint Security

AWS Cloud Security

IAM & Access

Threat Detection

Security Posture

Collaboration

Education

Bachelor’s degree in Cybersecurity/CS/IT

AWS Certified Security – Specialty

GIAC / CySA+ / CISSP (preferred)

Tools

Microsoft Sentinel

Splunk

Elastic

CloudTrail

CloudWatch

GuardDuty

Security Hub

Config

Job description

LG Energy Solution Vertech, Inc. is seeking a Cybersecurity Specialist III to lead enterprise security operations across incident response, SIEM tuning, vulnerability management, and cloud security in AWS.

You will collaborate with IT, Engineering, and DevSecOps to strengthen security posture and drive remediation efforts across endpoints, identities, and cloud environments. The role requires hands-on expertise in SIEM, EDR, and cloud security with a focus on risk-based prioritization and clear