Senior Security Infrastructure Engineer
Location:, Greater Madison, WI--three onsite days per week, with flexibility on which days
Base Salary: $130,000-$140,000
Employment Type: Full-time, permanent
Visa Sponsorship: USC Only

The Planet Group has partnered with a Madison, WI area company to locate a Cyber Security Engineer with excellent technical judgment and hands-on experience to shape how anorganization protects its systems and data.

This position suits a senior engineer who enjoys configuring tools, investigating suspicious activity, resolving vulnerabilities, and carrying improvements through implementation. Experience supporting manufacturing, pharmaceutical, or other regulated environments would be particularly valuable.
Responsibilities:

• Deploy, configure, and maintain security technologies across endpoints, networks, and shared infrastructure.
• Improve threat visibility through centralized logging, SIEM capabilities, and actionable security alerts.
• Investigate potential incidents, contain threats, identify root causes, and implement changes that reduce the likelihood of repeat events.
• Run vulnerability assessments, validate findings, and work with infrastructure and application teams to address configuration weaknesses and missing patches.
• Manage and improve controls such as endpoint protection, firewalls, intrusion detection and prevention, and data loss prevention.
• Help technical teams securely introduce new systems, connect environments, and update existing infrastructure.
• Translate security requirements into practical configurations, procedures, and technical safeguards.
• Assess risks to sensitive information and improve how data is accessed, handled, retained, and protected.
• Maintain clear documentation covering security configurations, operating procedures, incident response, and investigation findings.
• Review emerging threats and vendor advisories to determine which issues require action.
• Support employee security awareness efforts, including phishing and social engineering education.

• At least five years of hands-on cybersecurity engineering experience.
• Experience deploying and administering CrowdStrike Falcon or comparable endpoint security technology.
• Practical knowledge of network security, endpoint protection, vulnerability management, and incident investigation.
• At least two years working with security requirements associated with ISO 27001, SOX, CMMC, or DFARS.
• Direct experience supporting CMMC requirements.
• Ability to independently troubleshoot complex security issues, prioritize work, and follow improvements through completion.
• Clear communication skills and the ability to work effectively with technical colleagues across departments.
• A bachelor's degree or an equivalent combination of education and relevant experience. Candidates with a high school diploma or GED and four additional years of relevant experience will also be considered.

• Implementing or administering a SIEM platform.
• Securing Azure or AWS environments.
• Working with Rapid7, ThreatLocker, Cyberhaven, or similar security platforms.
• Supporting security assessments or integration activities during mergers and acquisitions.
• Protecting systems in manufacturing, pharmaceutical, or other regulated organizations.
• Relevant cybersecurity certifications or coursework toward certification.