Senior Security Engineer, Mandiant & Proofpoint

Make a difference here.

UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of security operations solutions. Founded and operated by security practitioners with decades of experience, the UltraViolet Cyber security-as-code platform combines technology innovation and human expertise to make advanced real-time cybersecurity accessible for all organizations by eliminating risks of separate red and blue teams.

By creating continuously optimized identification, detection, and resilience from today’s dynamic threat landscape, UltraViolet Cyber provides both managed and custom-tailored unified security operations solutions to the Fortune 500, Federal Government, and Commercial clients. UltraViolet Cyber is headquartered in McLean, Virginia, with global offices across the U.S. and in India. 

We are seeking a Senior Security Engineer to implement and manage advanced security solutions with a focus on Mandiant and Proofpoint technologies within federal government environments. This role will be responsible for security architecture, threat detection, incident response, and email security operations across critical government infrastructure. 

Work Environment 

Hybrid work model with 2 day/week on-site presence near National Harbor, Maryland 

Must maintain required EOD clearance, US Citizenship required

Participation in on-call rotation for security incident response 

• Design, implement, and maintain Proofpoint email security solutions – including email protection, targeted attack protection, and leveraging intelligence-driven defense strategies.
• Utilize Mandiant Threat Intelligence to enhance threat detection and response capabilities
• Lead incident response efforts using Mandiant tools and methodologies
• Integrate Proofpoint with SIEM/SOAR platforms for automated detection and response.
• Configure and tune security rules and policies in Proofpoint to protect against advanced threats
• Responsible for comprehensive threat assessment reports and trend analysis.
• 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.

• 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
• Background in vulnerability management, patch compliance, and endpoint detection
• Experience with an endpoint security and management tool such as Tanium
• 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

• Experience securing federal agency networks and systems 
• Prior work with federal agency security operations 
• Security certifications (CISSP, GIAC, CEH, Security+) 
• Experience with SIEM platforms and security orchestration tools 
• Background in cloud security for government environments (FedRAMP) 
• Knowledge of Zero Trust implementation per federal guidelines 
• Experience with supply chain security requirements (EO 14028) 

• Hybrid work model with 2 day/week on-site presence near National Harbor, Maryland 
• Must be able to pass a Federal background investigation - US Citizenship required
• Participation in on-call rotation for security incident response 

• 401(k), including an employer match of 100% of the first 3% contributed and 50% of the next 2% contributed  
• Medical, Dental, and Vision Insurance (available on the 1st day of the month following your first day of employment)  
• Group Term Life, Short-Term Disability, Long-Term Disability  
• Voluntary Life, Hospital Indemnity, Accident, and/or Critical Illness  
• Participation in the Discretionary Time Off (DTO) Program  
• 11 Paid Holidays Annually 

UltraViolet Cyber maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect our company's differing products, services, industries and lines of business. Candidates are typically placed into the range based on the preceding factors.

We sincerely thank all applicants in advance for submitting their interest in this position. We know your time is valuable.

UltraViolet Cyber welcomes and encourages diversity in the workplace regardless of race, gender, religion, age, sexual orientation, gender identity, disability, or veteran status. 

If you want to make an impact, UltraViolet Cyber is the place for you!