Senior Security Engineer, DSPM
Triple Canopy
Remote · Herndon, VA · Posted October 16, 2026
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November 2026
- #2Best cities for pay after cost of living in Virginia$161k · of 15
- #3Best cities for pay after cost of living in the Southeast$161k · of 33
- #3Best all-round cities for AI careers in the Mid-Atlantic86 / 100 · of 37
- #4Best cities for pay after cost of living in the Mid-Atlantic$161k · of 37
- #4Best cities for software and engineering jobs in the Mid-Atlantic441 openings · of 68
- #4Best all-round cities for mid-career professionals in the Mid-Atlantic76 / 100 · of 37
Rankings about security jobs
- Best cities for security jobs #1 San Francisco (316 openings)
- Best cities for security pay after cost of living #1 San Mateo ($241k)
- Most requested AI skills in security jobs #1 AI tools in daily work (10.8%)
- Employers with the most security jobs #1 Amazon (318 roles)
How AI is used in this kind of work
Among computer occupations, all other, AI is already used for a large share of the tasks. Measured exposure for computer occupations, all other: 31% (high).
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About the job
POSITION SUMMARY
Constellis is seeking a skilled Sr. Security Engineer to lead initiatives in data protection, classification, and insider threat detection. This role will focus on securing enterprise data through advanced controls, supporting eDiscovery and DLP operations, and investigating potential misuse or leakage of sensitive information.
RESPONSIBILITIES
Design and implement data classification frameworks aligned with regulatory and contractual requirements (e.g., CMMC, CUI, DFAR, GDPR, ITAR).
Manage and optimize Data Loss Prevention (DLP) policies across endpoints, on-premises, cloud services, and email platforms.
Support eDiscovery workflows, including review set management, legal hold coordination, and audit trail integrity.
Conduct insider threat investigations using behavioral analytics, audit logs, and forensic tools.
Collaborate with Legal, HR, and Compliance teams to ensure ethical and lawful handling of sensitive data.
Maintain and enhance data protection and data governance platforms.
Develop and document security controls, workflows, and incident response playbooks related to data misuse.
Monitor regulatory developments and update controls to maintain compliance.
Actively search all areas of the internal network for hidden threats and vulnerabilities
Support audits and compliance efforts
Participate in red/blue/purple team exercises as needed to analyze threat scenarios and assess internal defenses and document results.
Engage positively across multiple teams to establish clarity, vision, and mutual trust in order to achieve business goals
Adheres to industry-specific local, state, and federal regulations, as applicable
Other duties as assignedOther duties as assigned
QUALIFICATIONS
Bachelor's degree preferred. Five additional years of related experience beyond the minimum may be substituted in lieu of a degree.
5+ years of experience in data security, DLP, or insider threat investigations.
Hands-on experience with tools like Microsoft Purview, eDiscovery, and classification tools.
Experience with SIEM, UEBA, and forensic investigation tools.
Excellent analytical, communication, and documentation skills.
S. Citizen.
Ability to obtain and maintain at least a Top Secret clearance.
BENEFITS
Constellis offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects its commitment to creating a supportive workplace.