Senior Cyber Defense Infrastructure Engineer – Security Tooling Operations

IDEXX

Senior Cyber Defense Engineer managing the operation and performance of enterprise information security tooling for a prominent organization. Collaborating with various teams to support security platforms and incident response capabilities.

Posted 5/15/2026full-timeWestbrook • Maine, New Hampshire • 🇺🇸 United StatesSenior💰 $120,000 - $150,000 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudLinux

About the role

Key responsibilities & impact

Ensure the reliable operation, performance, and lifecycle management of enterprise information security tooling
Ensure critical security platforms are resilient, scalable, and reliable
Serve as the operational owner for core security platforms
Lead the post‑selection deployment, configuration, and operationalization of enterprise security tools
Partner with Security Architecture and platform teams to operationalize approved tool designs
Develop monitoring, runbooks, and operational processes to support secure and reliable ongoing operations
Configure, maintain, patch, and upgrade security tools
Manage security tool lifecycles
Develop and maintain operational documentation, runbooks, and support procedures
Support audits and assessments by demonstrating tooling configuration, availability, and operational controls
Identify opportunities to improve tooling reliability, automation, and operational efficiency

Requirements

What you’ll need

5+ years of experience supporting or engineering enterprise security platforms
Hands‑on experience with one or more of the following: Endpoint protection / EDR tools, SIEM or security analytics platforms, Vulnerability management solutions, Cloud or infrastructure security tooling
Strong understanding of: Linux and/or Windows systems, Cloud environments (AWS, Azure, or hybrid), System integrations, logging, and telemetry pipelines
Experience working within change, incident, and problem management processes
Experience in large‑scale or regulated enterprise environments (preferred but not required)
Familiarity with security frameworks such as NIST CSF, CIS Controls (preferred but not required)
Relevant certifications (preferred but not required), such as cloud or security certifications.

Benefits

Comp & perks

Health / Dental / Vision Benefits Day-One
5% matching 401k
Additional benefits including but not limited to financial support, pet insurance, mental health resources, volunteer paid days off, employee stock program, foundation donation matching, and much more!

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

enterprise security platformsEndpoint protectionEDR toolsSIEMsecurity analytics platformsVulnerability management solutionsCloud security toolingLinux systemsWindows systemssystem integrations

Soft Skills

operational ownershipleadershipcollaborationprocess developmentdocumentationauditing supportproblem management

Certifications

cloud certificationssecurity certifications