Cybersecurity Engineer, Detection Engineer

Marathon Petroleum

Quick summary

Work type
On-site
Location
San Antonio, TX
Posted
4 days ago
Closes
Jun 23, 2026
Nearby
67 roles within 25 mi

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Salary context

How this pay compares to similar roles

Similar $170k
$121k most similar roles pay here $213k

This listing doesn't post a salary. Most similar roles pay $142,400–$198,200.

Based on 239 similar postings.

Employer

About Marathon Petroleum

Marathon Petroleum Corporation is one of the largest petroleum refining, marketing, retail, and transportation companies in the United States, operating an extensive refining network and Speedway convenience stores. Industry: Oil Refining & Energy

Marathon Petroleum currently has 8 open roles on FindRole.

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At a glance

TL;DR · Cybersecurity Engineer, Detection Engineer

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The Senior Cybersecurity Engineer at Marathon Petroleum Corporation’s Cyber Fusion Center is responsible for safeguarding the company's digital and operational assets by developing high-fidelity threat detection capabilities across enterprise IT and industrial control systems. This role involves translating complex threat intelligence into actionable detection logic, creating automated response workflows, and enhancing incident response playbooks. The engineer will work closely with internal teams to ensure alignment between detection strategy and risk posture, requiring expertise in SIEM platforms like Splunk or QRadar, scripting languages such as Python or PowerShell, and security automation tools. Ideal candidates possess a deep understanding of IT/OT security principles and experience with ICS/OT networks, making significant contributions to the protection of critical infrastructure within the energy sector.

Skills

SIEM Python Splunk Google SecOps QRadar Cortex XSOAR Swimlane Modbus DNP3 OPC MITRE ATT&CK Cyber Kill Chain Intrusion Detection Penetration Testing Security Controls Security Governance Vulnerability Management Threat Hunting ICS/OT Networks

What you'll do

  • Develops high-fidelity detection capabilities by translating complex threat intelligence into actionable security measures.
  • Builds automated response workflows to enhance incident response efficiency across enterprise IT and ICS/OT environments.
  • Continuously refines cyber threat detection logic on the corporate SIEM/SOAR platform to improve threat identification accuracy.
  • Collaborates with internal teams to ensure alignment between detection strategy, risk posture, and operational resiliency.
  • Identifies cybersecurity metrics and drives process improvements for various teams within the organization.

What we're looking for

  • Bachelor’s Degree in Information Technology or related field required.
  • At least 2 years of relevant cybersecurity experience necessary.
  • Hands-on experience with SIEM platforms like Splunk and SOAR tools essential.
  • Proficiency in scripting languages such as Python and PowerShell required.
  • Knowledge of ICS/OT networks, industrial protocols, and threat frameworks preferred.
  • Ability to develop automated response workflows and enhance incident response playbooks.

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