Top Senior Cyber Security Jobs in Washington, DC

Supports enterprise network security engineering initiatives, including Cisco ISE and Cisco SNA deployments, access control, authentication, threat visibility, testing, troubleshooting, and system implementations. The role develops security requirements, analyzes network behavior, manages deployment processes, identifies risks, and partners with technical and business stakeholders across a global enterprise network.

Oversee the security of firm applications, networks, systems, hardware, and mobile devices throughout their lifecycles. Develop security requirements and architecture, manage controls and configurations, perform certification and accreditation, maintain asset inventories, and ensure secure development and acquisition practices. Collaborate across departments and mentor team members while serving as a primary technical security contact. The role requires independent judgment, strong analytical ability, knowledge of security frameworks and technologies, and at least seven years of related experience.

Lead assessment and mitigation of security risks in the virtualization stack. Build threat models, rubrics, and defenses; partner with kernel, virtualization, and provisioning teams to design and implement mitigations; mentor engineers, manage vulnerability backlog, and promote security best practices across product teams.

Design, implement, and maintain scalable cloud security controls for Vercel's platform. Harden infrastructure using infrastructure-as-code and policy enforcement, secure CI/CD pipelines, perform threat modeling and risk analysis, improve monitoring and incident response, and build platform-level security tooling in collaboration with platform and infrastructure teams.

Lead cybersecurity compliance for a Department of Labor FISMA Moderate application ecosystem. Manage RMF, NIST controls, ATO documentation, CSAM artifacts, risk registers, POA&Ms, vulnerability findings, continuous monitoring, audits, secure SDLC evidence, incident response coordination, and remediation across application, database, infrastructure, and DevSecOps teams. Support governance, CPIC reporting, and DOL cybersecurity stakeholders.

Lead development of security enforcement integrations that warn or block unsafe AI artifact installations, serve sanitized alternatives, and record audit events. Build reliable event-driven backend systems with queues, webhooks, idempotency, retries, back-pressure, approval flows, dry runs, audit logs, and rollback mechanisms. Integrate third-party security, infrastructure, and identity APIs, with potential future work on fleet-wide revocation controls and security platform integrations.

Lead application security for products by performing threat modeling, manual secure code reviews, and penetration testing. Collaborate with engineers to remediate defects, build AppSec automation and tooling, secure cloud/containerized applications, and drive bug-bounty responses to harden platform security.

Supports FEMA cybersecurity compliance by executing RMF and ATO activities, implementing and assessing security controls, maintaining SSPs and related security artifacts, tracking POA&Ms, conducting vulnerability and impact assessments, supporting continuous monitoring and audits, and producing cybersecurity reports. The role also supports cloud authorization, configuration change reviews, hardware and software inventory, and compliance with FISMA, NIST, DHS 4300 Series, and related federal directives.

Lead the AWS cloud security program and manage security engineering teams. Establish AWS security standards, oversee IAM, encryption, logging, monitoring, vulnerability management, Terraform automation, CI/CD security, incident response, and secure architecture reviews. Manage risk registers, compliance workflows, audits, control testing, and FedRAMP, FISMA, NIST, and SA&A readiness. Guide investigations, remediation, runbooks, tabletop exercises, and secure cloud practices while reporting risks and metrics to leadership.

Monitor and secure federal cloud environments across AWS, Azure, and Google Cloud. Perform cloud threat hunting, log analysis, incident response, and develop cloud security playbooks and monitoring use cases. Ensure cloud logs are integrated with SIEM tools, tune detection systems, establish KPIs, support threat information sharing, and assist with cloud SOC tool deployment and proof-of-concept efforts.

Manage, maintain, and troubleshoot enterprise security technologies while monitoring, detecting, investigating, and remediating security incidents. Perform digital forensics, threat hunting, vulnerability and risk assessments, audits, compliance checks, evidence preservation, and root cause analysis. Collaborate with internal teams and third parties, implement new security solutions, create security documentation, and support incident response during regular and on-call hours.

Design, implement, and maintain security controls across cloud (AWS) and on-prem systems. Lead vulnerability management, incident response, and remediation. Serve as SME for SIEM, SAST/DAST, IAM. Embed security in SDLC, support SOC 2/ISO 27001 audit readiness, mentor junior engineers, and recommend control improvements.

Leads end-to-end Cisco Duo MFA and access management engagements, including architecture, deployment, integrations, migrations, automation, device trust, security reviews, documentation, and client handoff. Supports Okta and Ping Identity projects, contributes to presales activities, owns technical delivery, mentors junior engineers, and manages client communication. The role integrates identity platforms with VPNs, cloud services, applications, directories, endpoint management tools, and enterprise infrastructure.

Leads enterprise Identity, Credential, and Access Management architecture and application security integration for Defense Logistics Agency mission systems. Defines identity, authentication, authorization, access governance, provisioning, and integration requirements; designs secure architecture patterns; supports application onboarding and modernization; and guides RBAC, privileged access management, and segregation of duties implementations. Provides technical leadership and communicates recommendations to government stakeholders, application owners, engineers, developers, and cybersecurity teams.

Lead technical marketing for API, AI agent, and application security by deploying and testing Akamai products, building PoCs, demos, labs, and attack simulations, creating technical content and enablement, validating messaging, and presenting technical briefings while collaborating with product, engineering, and field teams.

Leads enterprise cybersecurity monitoring, threat detection, vulnerability management, SIEM analytics, threat hunting, incident response, and continuous monitoring for federal and DoD-aligned environments. Oversees ACAS/Nessus scanning, STIG validation, patch compliance, detection engineering, threat intelligence, reporting, and remediation coordination. Collaborates with cloud, DevSecOps, ISSO, and engineering teams while mentoring junior analysts and improving security automation.

Monitors SIEM dashboards, correlates logs across security and cloud sources, investigates alerts, assesses threats, performs preliminary incident triage, tunes detection rules, documents findings, and escalates high-risk events. The analyst supports continuous monitoring, SOC playbooks, detection use cases, reporting, and coordination with incident response and engineering teams in a DoD-aligned environment.

Designs and implements secure cloud architectures, IL5 controls, STIG-aligned hardening baselines, identity integrations, and cybersecurity controls for federal and DoD-aligned platforms. Performs security assessments, vulnerability analysis, continuous monitoring, secure deployment reviews, audit support, and remediation planning. Requires expertise in AWS, NIST, RMF, PKI, SIEM, and cloud security, along with mentoring junior engineers and documenting technical architectures. The role is fully remote but requires an active Top Secret clearance and substantial security engineering experience.

Performs application security assessments, secure code reviews, API and CMS security testing, threat modeling, vulnerability analysis, and remediation validation. Integrates SAST, DAST, dependency scanning, secrets management, and security controls into CI/CD pipelines. Advises developers and architects on secure coding, authentication, encryption, and DevSecOps practices while supporting monitoring and incident triage. Requires an active Top Secret clearance, technical bachelor’s degree, seven years of relevant experience, and Security+, CISSP, or CCSP certification.

Supports AWS GovCloud IL5 cybersecurity compliance and security operations. Performs RMF impact analysis, maintains SSPs, POA&Ms, SARs, and control evidence, validates STIGs and cloud configurations, monitors vulnerabilities and logs, supports IL5 migrations, audits, ATO activities, and continuity planning, and documents remediation and compliance findings.

The role involves leading security initiatives, building security tools, conducting vulnerability assessments, and collaborating with teams to enhance cloud security and risk management.

Build Ent’s endpoint data-protection layer for classifying sensitive data, tracing provenance, and enforcing egress policies across devices, applications, networks, removable media, browsers, and AI tools. Develop cross-platform interception and content inspection capabilities, integrate on-device language models, optimize performance, produce forensic evidence, investigate compatibility issues, and improve detection precision for enterprise customers.

Deliver cybersecurity assessments, architecture reviews, maturity evaluations, security roadmaps, and implementation guidance for enterprise clients. Assess on-premises, cloud, hybrid, identity, OT, and ICS environments; identify risks and security gaps; produce reports; and present recommendations to technical and executive stakeholders. Support incident response and post-incident improvements, collaborate with engagement managers and specialists, contribute to consulting methodologies, and stay current on threats and security best practices. Travel is approximately 20%.

Designs, deploys, and supports enterprise network security systems, including BGP routing, DDoS mitigation, cloud network security, and WAF solutions. Leads security engineering initiatives, defines requirements, manages technical risks and vulnerabilities, develops test plans, reports metrics, collaborates with stakeholders, resolves complex security issues, and mentors team members.

Designs, implements, and manages security controls across AWS, Azure, and GCP environments. Leads cloud architecture reviews, technical risk assessments, secure solution design, and compliance remediation. Automates security governance using Infrastructure as Code and Policy as Code, integrates security into CI/CD pipelines, evaluates cloud security solutions, and partners with DevOps, architecture, application, infrastructure, and risk teams to secure cloud-native systems.