Top Senior Cyber Security Jobs

Lead development and execution of infrastructure security strategy and roadmap across on-prem, cloud, and hybrid environments. Establish standards, implement controls (servers, endpoints, network, cloud, containers), drive automation (IaC, policy-as-code), manage security tooling lifecycle, measure KPIs/KRIs, remediate risks, mentor engineers, and partner with cross-functional teams to enable secure technology delivery and incident response.

Own OT security engineering for laboratory instruments, automation, and building systems. Translate OT security architecture into controls (segmentation, identity, PAM, PKI), build detection and response, validate vendor integrations, run vulnerability and lifecycle management, and mentor engineers while partnering with SOC, OT engineering, and lab operations.

Perform advanced offensive security work: conduct complex penetration tests, teach and integrate offensive tradecraft into the AI platform, harden product and company defenses, and collaborate with core engineers to build and ship capabilities that automate red-team techniques.

Perform technical cybersecurity engineering and A&A tasks: design and embed security controls, run vulnerability scans and remediation, create and review A&A documentation, assess computing environments, maintain baselines/configuration management, coordinate changes, and use COTS/GOTS and custom tools to detect and remediate intrusions across virtualized, cloud, and enclave systems.

Lead assessments, design secure infrastructure and controls, implement scalable security solutions, operate and administer enterprise security tools, drive vulnerability management, incident response, and risk analysis, and report security posture to stakeholders and senior leadership.

Lead and scale the Email Security engineering team, own roadmap delivery, drive architecture for high-throughput distributed systems, partner with Product and Security, mentor engineers, and oversee on-call, incident response, and system reliability.

Design and maintain enterprise security capability architectures, translate business requirements into technical specifications, develop roadmaps and lifecycle plans, prioritize investments, ensure adherence to architectural standards, and collaborate with product management, engineering, operations, and third-party suppliers to defend against internal and external cyber threats.

Designs and maintains enterprise security architecture aligned with NIST RMF and DoD STIGs. Performs security engineering across the SDLC, vulnerability management with Nessus/ACAS/Qualys, incident response and threat detection using Splunk, endpoint protection and PAM (CyberArk), automation with PowerShell/Python/Bash/Ansible, cloud and container security (AWS/Azure/Kubernetes), documentation, training, and technical leadership for accreditation and continuous monitoring.

Provide security oversight for network and mainframe systems to ensure confidentiality, integrity, and availability. Evaluate security architecture, recommend hardware/software, perform risk assessments and penetration testing, support security projects and disaster recovery, and assist in policy and standards creation.

Lead and provide technical oversight for complex network and security implementations, manage engineering teams, run design workshops, support presales, ensure best practices and successful project delivery, and maintain strong client relationships while fostering team development.

Provide cybersecurity engineering and architecture for mission and enterprise systems, translate NIST/CNSS controls into secure designs, troubleshoot Linux/Windows servers and endpoints, Cisco network devices, and enterprise storage, implement continuous monitoring (vulnerability scanning, SIEM), perform technical security assessments using Tenable and DISA STIGs, prioritize risk, and lead remediation efforts to maintain compliance and mission assurance.

Manage and grow a security engineering team responsible for product and platform security, embedding security into the SDLC, running red team/adversarial testing, performing hands-on web application pentesting, threat modeling, secure-coding guidance, and defining AI security guardrails.

Serve as security engineering representative on teams to design, implement, evaluate, and integrate IA architectures, secure networking, computing, and enclave environments. Apply IA policy and procedures, support security planning, assessment, risk analysis/management, identify data handling requirements, and enforce trusted relationships with external systems while interacting with customers and project teams.

Designs and implements enterprise security architecture, develops security standards and policies, leads security projects and incident response, mentors junior staff, evaluates and configures network/security devices, and drives security awareness and strategy across the organization.

Manage and lead engineering teams building endpoint security software: define and execute roadmaps, oversee SDLC and ISMS compliance, remove blockers, drive secure coding, coordinate with product and architects, recruit and develop staff, and manage budgets and operations.

Design, build, and implement network security architecture including firewalls, segmentation, Zero Trust, and cloud network design (Azure). Lead end-to-end technical migrations, work hands-on with engineering during build/cutover, remediate legacy configurations, document architectures, handle ServiceNow RSA tickets, and advise stakeholders on network security.

Lead strategy, execution, and operational excellence for multiple security engineering domains. Build and develop leaders, deliver multi-year roadmaps, drive platform evolution, automation, vendor strategy, and cross-functional programs to reduce risk and scale secure operations.

Lead security architecture design and implementations, provide L2-L3 support and 24x7 incident response, manage work orders/change requests, perform on-site technical implementations and client consulting, and ensure delivery of enterprise security solutions.

Design, implement, and scale enterprise security architecture across identity, endpoints, network, SaaS, and AI systems. Lead zero-trust transformation, automate security workflows, build AI-augmented detection and response tooling, perform risk assessments and threat modeling, and mentor junior engineers while partnering cross-functionally to improve telemetry, monitoring, and incident response.

Support cybersecurity engineering for a VA healthcare modernization project: secure AWS and hybrid environments, support RMF/ATO and compliance, configure and monitor AWS security services, produce SSPs/POA&Ms/SOPs, perform vulnerability assessments and DISA STIG hardening, integrate security into DevSecOps and CI/CD, and collaborate with stakeholders on security controls and remediation.

Lead technical security architect responsible for administering network security devices, performing security assessments against NIST/PCI/SCSEM controls, conducting incident response analysis, advising on vulnerability remediation and hardening, evaluating exceptions and privileged access requests, and administering Tenable and McAfee security tooling.

Design, test, and implement secure operating systems, networks, and databases; perform risk assessments, penetration and vulnerability analysis, and encryption work; develop cyber architectures, integrate forensic tools, and provide engineering recommendations for enterprise-wide national security systems.

Provide Tier 3 network security engineering for INSCOM: install, configure, and harden network and security infrastructure; troubleshoot switching, routing, VPNs, and Next-Gen firewalls; manage ACLs and firewall policies; configure F5 BIG-IP (LTM/ASM); perform packet analysis; apply STIGs/NIST hardening; collaborate across teams and support enterprise SDLC.

Lead engineering and integration of perimeter security controls across on-premises and cloud infrastructure. Collaborate with stakeholders to align capabilities with policies, coordinate deployments to minimize service disruption, work in agile sprints, produce technical documentation, provide Tier 4 support and on-call coverage, and drive operational excellence.

Lead and grow an offensive security consulting practice, oversee penetration testing and red team engagements, advise senior stakeholders, support pre-sales and solution design, and drive capability development and service innovation.