Staff Cyber Defense Engineer

Dexcom

. Design, develop, and maintain enterprise detection content through its full lifecycle .

Posted 10/9/2026full-timeRemote • United StatesLead💰 $156,400 - $260,600 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in cyber defense solutions, threat hunting, and incident response, with a strong focus on automation and detection engineering. Proven ability to lead complex investigations and mentor junior team members while collaborating across Information Security and IT.

Highest-signal resume keywords

Cyber Defense Solutions OwnershipThreat Hunting ExpertiseDetection EngineeringProficiency in PythonStrong Experience with SIEM

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Detection LogicAutomationTelemetry PipelinesAPI IntegrationsIncident ResponseDigital ForensicsCyber Threat IntelligenceMITRE ATT&CKAdversary BehaviorsMachine Learning

Soft Skills

CollaborationMentoringCommunication

Tools & Technologies

SIEMSOARXDR/EDRNDRCloud Security TechnologiesEnterprise Networking Fundamentals

Certifications & Qualifications

CISSPCCSPGIAC

Industry Keywords

Cyber DefenseThreat IntelligenceSecurity TelemetryRisk MitigationTechnical Documentation

Tech Stack

Tools & technologies

CloudPythonSQL

About the role

Key responsibilities & impact

Design, develop, and maintain enterprise detection content through its full lifecycle
Develop and implement cyber defense capabilities, including telemetry integrations, SOAR workflows, response playbooks, and agentic response patterns with human oversight
Conduct proactive threat hunting using threat intelligence, adversary behaviors, and security telemetry
Translate threat-hunting findings into improved detections and controls
Lead complex security investigations, escalations, and emerging or non-traditional risk scenarios
Drive containment, recovery, risk mitigation, root-cause analysis, and durable improvements
Support red and purple team exercises, adversary emulation, detection validation, and simulations
Build scripts, API integrations, and automation to reduce manual effort and improve response consistency
Evaluate security telemetry, detection coverage, and cyber defense tooling
Troubleshoot visibility gaps and implement improvements
Execute cyber readiness activities, including technical exercises, playbook validation, escalation testing, and readiness assessments
Partner across Information Security and IT to strengthen defensive controls
Maintain technical documentation and engineering procedures
Mentor junior engineers and analysts

Requirements

What you’ll need

Bachelor’s degree in a technical discipline and 8–12 years of related experience, or Master’s degree and 5–7 years of equivalent industry experience, or PhD and 2–4 years of experience
Demonstrated success independently owning cyber defense solutions and complex technical initiatives
Strong experience with SIEM, SOAR, XDR/EDR, NDR, identity and email telemetry, cloud security technologies, and enterprise networking fundamentals
Strong engineering background in detection logic, automation, telemetry pipelines, API integrations, or security tooling
Proficiency with Python, PowerShell, SPL, KQL, SQL, or similar technologies
Strong knowledge of adversary behaviors, threat hunting, incident response, digital forensics fundamentals, detection engineering, cyber threat intelligence, and MITRE ATT&CK
Experience applying automation, AI, or machine-learning capabilities to detection, investigation, or automated response with appropriate human oversight
Ability to independently lead complex investigations, collaborate across teams, mentor practitioners, and communicate technical findings and risk
Certifications such as CISSP, CCSP, GIAC, or equivalent security certifications may be applicable
Travel required: 0–5%

Benefits

Comp & perks

Medical, dental, and vision coverage
Wellness programs
Performance incentives
Opportunities for advancement
Flexible work arrangements
Unlimited paid time off
In-house training and development programs
Career mentorship
Opportunities to attend security conferences
Inclusive and diverse work environment
Home office workplace
Flex workplace option may be available for employees within commuting distance of a Dexcom site