Remote Linux Systems Administrator Jobs in Massachusetts

We are seeking a highly experienced and skilled Senior Information Security Engineer to join our IT Security organization in our Worcester, MA office or remote work arrangement.

POSITION OVERVIEW:

The Senior Information Security Engineer (SIEM & IDS/IPS Administrator) is responsible for the endtoend administration, maintenance, and optimization of the organization’s onpremise Security Information and Event Management (SIEM) platform and Intrusion Detection/Prevention Systems (IDS/IPS). This role ensures that these critical security technologies remain highly available, strategically aligned with enterprise security objectives, governed according to policy, and operating at peak effectiveness.

The engineer will work closely with cybersecurity, infrastructure, and governance teams to ensure that threat detection, alerting, and response capabilities are robust, reliable, and continuously improving.

This is a full time, exempt position.

IN THIS ROLE, YOU WILL:   

SIEM Administration & Engineering

• Manage, maintain, and optimize the onpremise SIEM platform, including log ingestion, parsing, correlation rules, dashboards, and alerting.
• Ensure SIEM availability, performance, and scalability to support enterprise security monitoring needs.
• Develop and tune detection rules, correlation logic, and use cases aligned with threat intelligence and organizational risk.
• Oversee log source onboarding, configuration, and validation across servers, applications, network devices, and security tools.
• Conduct regular SIEM health checks, capacity planning, and lifecycle management.

IDS/IPS Administration & Engineering

• Administer and maintain onpremise IDS/IPS platforms, ensuring accurate detection and prevention of malicious activity.
• Tune signatures, policies, and rulesets to reduce false positives while maintaining strong detection coverage.
• Monitor IDS/IPS performance, availability, and event trends to identify anomalies or operational issues.
• Coordinate with network and security teams to implement policy updates, rule changes, and architectural improvements.

Operational Excellence & Governance

• Ensure both SIEM and IDS/IPS solutions are aligned with security governance frameworks, compliance requirements, and organizational policies.
• Maintain documentation for system configurations, processes, runbooks, and governance controls.
• Support audit activities by providing evidence, reports, and system configuration details.
• Participate in incident response activities by providing SIEM/IDS/IPS insights, event analysis, and technical expertise.

Strategic Alignment & Continuous Improvement

• Evaluate emerging threats and recommend enhancements to detection logic and monitoring capabilities.
• Collaborate with architecture and leadership teams to align SIEM and IDS/IPS strategies with longterm security objectives.
• Identify opportunities to automate processes, improve detection fidelity, and enhance operational efficiency.

WHAT YOU NEED TO APPLY:

• Minimum 5 years of handson experience administering, managing, and maintaining:
  • An onpremise SIEM security solution, and
  • An onpremise IDS/IPS security solution
• Demonstrated experience ensuring high availability, governance alignment, and operational effectiveness of security monitoring technologies.
• Strong understanding of SIEM architecture, log ingestion pipelines, correlation logic, and event normalization.
• Expertise with IDS/IPS technologies, signature tuning, network traffic analysis, and threat detection methodologies.
• Proficiency with security log formats (syslog, JSON, CEF, LEEF, etc.).
• Familiarity with network protocols, firewall rules, and enterprise network architecture.
• Experience with Linux/Windows server administration as it relates to security tooling.
• Ability to analyze security events, identify patterns, and support incident response.
• Strong analytical and problemsolving abilities.
• Excellent communication skills for crossteam collaboration.
• Ability to work independently in a remote environment while managing multiple priorities.
• Detailoriented mindset with a commitment to governance, documentation, and operational discipline.
• Preferred Qualifications (Optional Enhancements)
  • Industry certifications such as:
    • GIAC (GCIA, GCDA, GCED, GMON)
    • CompTIA Security+ / CySA+
    • CISSP or equivalent
  • Experience with automation (Python, PowerShell, or similar).
  • Familiarity with threat intelligence platforms and frameworks (MITRE ATT&CK, NIST CSF).