Senior Proofpoint and Mandiant Engineer

Senior Proofpoint and Mandiant Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: None

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

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The Opportunity:

CACI is seeking a Senior Engineer with expertise in Proofpoint and Mandiant solutions to join our Infrastructure Automation team. In this role, you will be responsible for implementing, managing, and optimizing our email security and threat intelligence capabilities, as well as supporting incident response efforts.

The Senior Engineer should feel comfortable optimizing the Proofpoint and Mandiant implementations while collaborating with cross-functional teams to enhance DHS’ overall security posture. This role is part of a team of Infrastructure Automation and Security Engineers working to define, develop, and manage strategies that reduce risk and improves resiliency.

Responsibilities:

The Senior Engineer will:

• Design, implement, and maintain Proofpoint email security solutions – including email protection, targeted attack protection, and CASB
• Utilize Mandiant Threat Intelligence to enhance threat detection and response capabilities
• Lead incident response efforts using Mandiant tools and methodologies
• Configure and tune security rules and policies in Proofpoint to protect against advanced threats
• Analyze security logs and alerts from Proofpoint and Mandiant solutions to identify potential security incidents
• Conduct regular security assessments and vulnerability scans using Mandiant Security Validation
• Develop, recommend, and enforce security processes and procedures
• Document and map the architecture of current scanning and monitoring tools and environment
• Support the development of a Security Engineering Tool roadmap
• Collaborate with cross-functional teams to enhance overall security posture through automation
• Stay current with emerging security technologies and industry trends to recommend improvements or additions.


Qualifications:

Required: 

• Ability to attain DHS EOD
• ITIL V4 Foundations certification (or obtain in first 6 months)
• MA/MS or equivalent +10 years of experience (BA/BS + 13yrs or AA/AS +15yrs)
• Significant experience in information security, with strong hands-on experience in email security and threat intelligence
• Strong knowledge of Proofpoint and Mandiant platforms, including incident response and forensic analysis
• Strong understanding of email-based threats, including phishing, malware, and VEC
• 4 or more years of hands-on experience in enterprise IT support
• Experience working with and guiding technicians with varying skill levels and supporting end users remotely
• Strong analytical and problem-solving skills, particularly in optimizing security workflows
• Professional, customer-oriented, and even-keeled under pressure
• Effective communicator at all levels, both written and verbal


Desired:
 

• Any of the following certifications:
o Proofpoint Certified Administrator (PCA)
o Proofpoint Certified Engineer (PCE)
o Proofpoint Certified Specialist (PCS)
o Mandiant Certified Incident Handler (MCIH)
o Mandiant Security Instrumentation Specialist (MSIS)
o Mandiant Threat Intelligence Certification (MTIC)
• Significant experience with DevOps practice and tools
• Knowledge of cloud security and containerization technologies
• Cybersecurity relevant certification Security +, CEH, GPEN, OSEP, Information Systems Security Engineering Professional (ISSEP)

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What You Can Expect:

 

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

 

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

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