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# Sr. Staff Cyber Defense Engineer

- **Company:** Dexcom, Inc.
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Salary:** $181,000.0 - $301,600.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Cloud Computing Security, Cyber Security, Digital Forensics, Intrusion Detection and Prevention, Python (Programming Language), Machine Learning, Performance Tuning, Windows PowerShell, Kusto Query Language, Security Information and Event Management, SQL Databases, Mitre Att&ck, Cybercrime, Purple Team (Cyber Security), Cyber Warfare, Api Management
- **Published:** October 11, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=32b35702a653a602

## About the Role

* You have demonstrated success leading complex cyber defense initiatives across organizational boundaries.
 * You bring deep expertise with SIEM, SOAR, XDR/EDR, NDR, identity and email telemetry, and cloud security technologies in large-scale cloud, hybrid, and on-premises environments.

 * You have a strong engineering background in detection logic, automation, telemetry pipelines, API integrations, or security tooling using Python, PowerShell, SPL, KQL, SQL, or similar technologies.

 * You have deep knowledge of adversary behaviors, threat hunting, incident response, digital forensics fundamentals, detection engineering, cyber threat intelligence, and MITRE ATT&CK.

 * You have experience applying AI or machine-learning capabilities to detection, investigation, or automated response, including performance measurement and appropriate human oversight.

 * You demonstrate the ability to operate as a senior technical authority, influence leaders without formal authority, mentor senior practitioners, and make sound decisions in high-stakes situations.

You may also bring certifications such as CISSP, CCSP, GIAC, or equivalent advanced security certifications.
*, Typically requires a Bachelor's degree in a technical discipline, and a minimum of 13+ years related experience or a Master's degree and 8+ years equivalent industry experience or a PhD and 5+ years of experience.
*

Remote Workplace:

 * Your location will be a home office; you are not required to live within commuting distance of your assigned Dexcom site (typically 75 miles/120km). If you reside within commuting distance of a Dexcom site (typically 75 miles/120km) a hybrid working environment may be available. Ask about our Flex workplace option.

## Description

As a Sr. Staff Cyber Defense Engineer, you will serve as a hands-on cyber defense architect, technical lead, and senior technical authority. You will use your deep technical expertise and sound technical judgment to influence roadmap and architecture decisions and lead complex cross-functional initiatives across detection, response, hunting, automation, and readiness.

Where You Come In:

 * You influence the technical strategy and roadmap for Enterprise Cyber Defense capabilities, aligned to business risk, the threat landscape, and Information Security priorities.

 * You serve as a technical authority for cyber defense architecture, establishing design principles, telemetry standards, integration patterns, and engineering practices across cyber defense platforms and data sources.

 * You own the enterprise detection engineering lifecycle, including detection logic, correlation rules, use cases, telemetry requirements, validation, tuning, and measurable efficacy across environments.

 * You design and engineer cyber defense capabilities, including advanced detections, telemetry integrations, SOAR workflows, and agentic response patterns with appropriate human oversight.

 * You lead major cross-functional cyber defense initiatives and technology transformations, resolving complex dependencies, technical tradeoffs, and sequencing decisions.

 * You provide senior technical leadership during the most complex cyber incidents and emerging or non-traditional risk scenarios, driving root-cause analysis, corrective actions, and durable defensive improvements.

 * You define the technical approach for threat hunting and adversary validation, using threat intelligence, red and purple team findings, incident lessons, and simulations to improve defenses.

 * You drive cyber readiness engineering through technical exercises, playbook validation, escalation testing, and the identification and remediation of systemic defense gaps.

You translate technical risk for senior leaders and mentor engineers and analysts to strengthen technical maturity.
*