Lead Threat Detection Engineer

McKesson’s Corporate; Irving, Winslow Township (TX, NJ); On-site; USD 139,000 - 232,000; Full time

Job summary

McKesson is seeking a Lead Threat Detection Engineer to advance automated detection capabilities within a global security team. You will help mature Detection-as-Code, design detection content, and ensure scalable alert performance across our stack.

The role requires extensive experience in threat monitoring, rule writing, and SIEM tooling, plus collaboration with Intel, SOC, and Red Teams to improve coverage and reduce risk to McKesson operations.

Qualifications

• 10+ years of professional experience in detection engineering or related fields.
• Strong knowledge of threat actors, TTPs, and security operations.
• Experience with rule writing and alert tuning to reduce false positives.

Responsibilities

• Mature detection from manual to automated, Detection-as-Code.
• Develop use-cases from intel, red team findings, and incident data.
• Write detection and correlation rules across our stack.
• Onboard logs and identify gaps in data for alerts.
• Collaborate with Intel, SOC, and Red Teams to improve coverage.

Skills

Detection engineering

Rule development

Python scripting

Threat intelligence

Cross-team collaboration

Education

Bachelor’s degree in Computer Science, Information Security, Security Engineering, Statistics, or Data Science

Tools

Splunk SPL

SIEM

Job description

McKesson’s Lead Threat Detection Engineer will be a member of our global cyber threat intelligence, incident response, analytics, and engineering team responsible for advancing our detection capabilities and tools. This team is responsible for building detection content, enabling integration, automation, enrichment, and performance of alerts. This role enables speed, quality, and coverage of threats for security operations and reduces risk to McKesson business operations.

Position Description/Responsibilities

• Mature from a manual detection practice to a modern, automated, and standardized Detection-as-Code practice and infrastructure.
• Develop use-cases based on intelligence, red team results, and incident data
• Develop IOC workflows and a feedback loop for the Threat Intel Platform (TIP)
• Write detection and correlation rules to identify threats across our stack
• Assist in onboarding logs and identifying gaps in logs or alert results
• Develop a deep understanding of data models, macros, indexes, sources, and field alias and the technology foundation our detection stack is built
• Understand data schema/API standards, automation, and messaging systems
• Bring a metrics-driven mindset to our rules, signals (IOCs), and alerts

Critical Requirements

• Prioritize detection use-case and scope and create a logical rule
• Ability to prioritize decisions to either write a rule and/or tune a tool/policy
• Practical experience with threat Actor tracking, tactics, tools, and techniques and working closely with Intel, SOC, and Red Teams (Purple Teams)
• Ability to measure detection coverage across common frameworks (e.g. NIST CSF, MITRE, KC) and simplify rules and configurations to optimize alerts
• Ability to automate tasks via scripting, automating inputs and outputs of APIs, and programming skills such as python to enable detection engineering tasks
• Exceptional interpersonal, organizational, and communication skills and ability to internalize and exemplify Mckesson core values.
• Splunk SPL knowledge and SIEM experience or additional SIEM background

Following Qualifications would be advantageous

• 10+ years of professional experience in two or more domains, including: detection engineering, data engineering, incident response, threat hunting, threat intelligence.
• Bachelor’s degree in computer science, Information Security, Security Engineering, Statistics, or DataScience Chronicle Experience, Splunk Certifications (1,2), Automation certifications (Security with Python SEC573), Sigma Rules

Compensation

We are proud to offer a competitive compensation package at McKesson as part of our Total Rewards. This is determined by several factors, including performance, experience and skills, equity, regular job market evaluations, and geographical markets. The pay range shown below is aligned with McKesson's pay philosophy, and pay will always be compliant with any applicable regulations. In addition to base pay, other compensation, such as an annual bonus or long‑term incentive opportunities may be offered.

Our Base Pay Range for this position $139,000 - $231,600

Equal Opportunity Employer

McKesson is an Equal Opportunity Employer

McKesson provides equal employment opportunities to applicants and employees and is committed to a diverse and inclusive environment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, age or genetic information.