Lead Security Engineer

Revolutional, LLC•McLean, VA

101d•$140,000 - $200,000•Hybrid

About The Position

As a Lead Security Engineer at Revolutional, you will define and drive enterprise security engineering strategy and execution across a large-scale federal modernization program. You will be responsible for integrating security into every layer of the environment, including applications, APIs, data platforms, cloud infrastructure, CI/CD pipelines, and operational processes. You will work across architecture, engineering, operations, and vendor teams to ensure security is proactive, automated, measurable, and aligned with federal compliance requirements. This role requires someone who can balance security rigor, operational resiliency, and delivery velocity while supporting secure modernization across complex system-of-systems environments.

Requirements

U.S. Citizenship with the ability to obtain a Public Trust
15+ years of experience in cybersecurity, security engineering, or enterprise modernization initiatives
Certified Information Systems Security Professional (CISSP) required
Certified Cloud Security Professional (CCSP) required
Proven experience securing large-scale, distributed cloud and enterprise environments
Ability to obtain and maintain a Public Trust clearance
Strong experience implementing security controls in cloud-native and hybrid environments
Experience supporting ATO processes, POA&M management, continuous monitoring, and federal compliance programs
Strong understanding of NIST 800-53, FedRAMP, FISMA, Zero Trust, MFA, secure SDLC, and federal cybersecurity frameworks
Experience integrating security into DevSecOps pipelines including SAST, DAST, automated policy enforcement, and CI/CD security controls
Experience securing APIs, microservices, distributed systems, and system-of-systems (SoS) environments
Experience implementing IAM strategies including RBAC, ABAC, MFA, and privileged access controls
Experience supporting supply chain security including SBOM and dependency risk management
Experience with penetration testing, vulnerability management, remediation tracking, and threat modeling
Experience implementing data security, encryption, privacy controls, and PTA/PIA processes
Experience supporting security operations including monitoring, alerting, incident response, and root cause analysis
Experience with SIEM, container security, image scanning, runtime protection, and cloud-native security platforms
Experience developing dashboards, KPIs, risk reporting, and security governance reporting
Experience maintaining security documentation, architecture artifacts, playbooks, and compliance records
Strong ownership mindset with accountability for enterprise security outcomes
Ability to influence security practices across engineering, architecture, and operational teams
Strong decision-making capabilities balancing security, compliance, performance, and delivery objectives
Effective communication across technical, operational, executive, and vendor stakeholders
Ability to operate across complex, evolving, multi-contractor delivery environments
Strong analytical and problem-solving skills with measurable impact on enterprise risk posture

Nice To Haves

CISM, CISA, or other advanced cybersecurity certifications
Experience supporting statistical and similarly large-scale federal modernization programs
Experience implementing enterprise Zero Trust architectures
Experience securing high-volume, real-time data processing platforms
Experience supporting DevSecOps-enabled enterprise modernization programs
Experience with large-scale cloud-native operational security environments

Responsibilities

Provide technical leadership across enterprise security engineering efforts within a large-scale modernization program
Design and implement security controls across cloud, application, API, data, and infrastructure layers
Integrate security into DevSecOps pipelines using automated scanning, policy enforcement, CI/CD controls, and security governance practices
Support Authority to Operate (ATO) processes, POA&M management, continuous monitoring, audit support, and remediation tracking activities
Ensure compliance with federal security frameworks and standards including NIST 800-53, FedRAMP, FISMA, Zero Trust, MFA, secure SDLC, and federal ATO requirements
Secure system-of-systems (SoS) environments spanning multiple vendors, contractors, integrated platforms, and distributed architectures
Implement and govern IAM strategies including RBAC, ABAC, MFA, privileged access management, authentication, authorization, and Zero Trust principles
Design and support API and microservices security architectures, including secure API design, token-based authentication, and authorization frameworks
Conduct penetration testing, threat modeling, SAST/DAST scanning, vulnerability assessments, and end-to-end remediation coordination
Support supply chain security initiatives including Software Bill of Materials (SBOM), dependency risk analysis, and third-party software validation
Implement security controls supporting encryption, sensitive data protection, PTA/PIA requirements, privacy standards, and secure data handling practices
Support security operations activities including monitoring, alerting, incident response, root cause analysis, and operational troubleshooting
Design and maintain dashboards, KPIs, risk reporting, compliance metrics, and security posture reporting
Develop and maintain security documentation including architecture artifacts, playbooks, operational procedures, compliance documentation, and governance materials
Collaborate across architecture, engineering, operations, and vendor teams to align security requirements with modernization and delivery objectives
Mentor engineering and security teams on secure coding, secure architecture, operational security practices, and DevSecOps standards