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Senior Information Systems Security Engineer ISSE (TS/SCI with Polygraph Required)

DeNOVO Solutions
  • Aurora, Colorado
    16 days ago

    Job Description

    Senior Information Systems Security Engineer (ISSE)
    Location: Aurora, CO
    Clearance Required: TS/SCI with Polygraph
    Sign-On Bonus: Yes

    DeNOVO Solutions is seeking a Senior ISSE to support a program that designs and evaluates system security architecture and engineering solutions across applications, platforms, data, networks, cloud, and tactical edge environments. This role translates cybersecurity requirements into implementable technical controls and validates that the integrated design achieves the intended risk posture. The Senior ISSE leads major technical workstreams, translates mission needs into executable plans, reviews the work of other team members, and owns quality, schedule, and technical outcomes.

    Primary Responsibilities 
    • Develop security architecture, trust boundaries, data flows, control allocations, and secure design patterns.
    • Engineer identity, credential, access management, encryption, key management, network segmentation, endpoint, application, container, and cloud security controls.
    • Perform threat modeling, attack-surface analysis, security trade studies, and risk assessments.
    • Review software, hardware, data, API, and interface designs for security weaknesses and compliance gaps.
    • Define security requirements, verification methods, test procedures, and acceptance criteria.
    • Support Zero Trust implementation, cross-domain considerations, supply-chain security, and secure tactical edge operations.
    • Analyze vulnerabilities and recommend technically effective remediation or compensating controls.
    • Coordinate with architects, developers, administrators, ISSOs, assessors, and Government cybersecurity leadership.
    Required Tech Skills and Tools
    Architecture and threat-modeling tools; vulnerability and code scanning; cloud and container security platforms; PKI/IAM tools; SIEM; network analysis; GRC repositories; security test tools

    Preferred Qualifications
    Experience supporting Army, DoD, Intelligence Community, or C5ISR programs; experience with classified environments, agile delivery, cloud-to-edge architectures, DDIL operations, and Government product demonstrations.

    Desired Certifications
    CISSP; Security+; CCSP; cloud security or architecture certification

    Required Experience and Education
    • Minimum of 10 years of experience as an ISSE
    • Minimum of 10 years of experience supporting government programs, projects, or contracts
    • BS Degree in Information Technology or related discipline. You may substitute the BS Degree requirement with 2 additional years of Software Engineering experience.
    Salary Range: $140,000.00 to $155,000.00
    Note: The above salary range is a guideline and represents a broad spectrum of potential compensation. We recognize that a candidate's unique experience and qualifications may justify compensation beyond this range. Therefore, we remain open to considering higher salary offers for exceptionally qualified candidates.

    Why Join DeNOVO Solutions?
     
    At DeNOVO Solutions, we make improving the competitive position of our customer paramount in importance and work collaboratively to ensure the best service possible. DeNOVO Solutions provides cleared personnel and cost competitive solutions to our customers. We strive to be the leader amongst small businesses in the Intelligence Community and provide personnel with talent & skills equal to the larger companies. As a Minority-Owned and Service-Disabled Veteran-Owned Small Business (MO/SDVOSB), we are dedicated to providing the best technical and professional services throughout the Intelligence Community (IC).
     
    Our benefits package for full-time employees includes:
    • Medical, Dental, and Vision Premiums 100% Employer Paid for you and your legal dependents or plus up, cost split plan.
    • 401k with 6% Match
    • 11 Paid Federal Holidays
    • 120 hours of Paid Time Off (PTO)
    • Company Outings and Trips
    • Tuition Reimbursement, Skillset Training, and New/Renewed Certification assistance
    • HomeFundIt Company Down Payment Match – Employer match towards the down payment of buying a new home
    DeNOVO Solutions is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, marital status, veteran status, sexual orientation, genetic information or any other protected characteristic under applicable law.
     
    Ready to Apply?
    Join our mission to deliver reliable, scalable, and innovative full-stack solutions supporting critical national programs.

    Numbers & Facts

    LocationAurora, Colorado
    Websitehttps://www.thedenovo.com/careers/

    Skills

    • Analysis Skillsunmatched
    • CISSP - Certified Information Systems Security Professionalunmatched
    • Cloud Computingunmatched
    • Code Reviewsunmatched
    • Computer Networksunmatched
    • Computer Securityunmatched
    • Cryptographyunmatched
    • Design Patterns Programming Methodologiesunmatched
    • Disability Accommodationsunmatched
    • Governmentunmatched
    • Information Systems Security Engineering (ISSE)unmatched
    • Information Technology & Information Systemsunmatched
    • Integrated Circuits (ICs)unmatched
    • Intelligence Communityunmatched
    • Internet Securityunmatched
    • Leadershipunmatched
    • Legalunmatched
    • Multiplatform/Cross-Platformunmatched
    • Operations Security (OPSEC)unmatched
    • Product Demonstrationunmatched
    • Professional Servicesunmatched
    • Public Key Infrastructure (PKI)unmatched
    • Requirements Managementunmatched
    • Requirements Validation/Verificationunmatched
    • Riskunmatched
    • Risk Analysisunmatched
    • Security Architectureunmatched
    • Security Information and Event Management (SIEM)unmatched
    • Sensitive Compartmented Information (SCI)unmatched
    • Small Businessunmatched
    • System Architectureunmatched
    • Tactical Operationsunmatched
    • Test Toolsunmatched
    • Testingunmatched
    • Threat Modelingunmatched
    • Top Secret Clearanceunmatched
    • Trade Studiesunmatched
    • United States Department of Defense (DoD)unmatched
    • Vulnerability Scannersunmatched

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