Top Senior Cyber Security Jobs

Designs, implements, and maintains enterprise security solutions across endpoint, cloud, email, network, and identity domains. Monitors threats, supports incident response, performs remediation and root cause analysis, maintains security configurations and standards, assists with audits and compliance, researches emerging threats, and leads security projects while advising technical and business stakeholders.

Conduct penetration tests across infrastructure, networks, web and mobile applications, and cloud environments. Perform application and cloud security testing, simulate adversary techniques, develop custom security tools, document vulnerabilities, validate remediation, and support HIPAA, SOC 2, and PCI DSS compliance. Collaborate with engineering and product teams, track emerging threats, and contribute to purple-team exercises, tabletop events, and security training.

Deploys and monitors AWS cloud platforms under DoD RMF and JSIG requirements. Develops infrastructure-as-code and configuration-as-code using Ansible and Terraform, operates Splunk security monitoring on Kubernetes, performs vulnerability assessments, and collaborates with engineering and networking teams. Requires DoD network experience, Windows or Linux expertise, Splunk administration, cloud and Kubernetes experience, Security+ or higher certification, and an active TS/SCI clearance.

Leads cloud and enterprise security architecture, security operations, incident response, threat hunting, detection engineering, automation, and security investigations. Designs Azure security solutions using Microsoft Sentinel, Defender, and related services; develops PowerShell and API integrations; evaluates AI-assisted security workflows; creates standards and documentation; leads technical projects; communicates risks; and mentors security team members.

Leads enterprise security architecture across cloud, network, endpoint, identity, application, data, AI, and OT environments. Responsibilities include Zero Trust and Secure by Design strategy, threat modeling, risk assessments, network segmentation, vulnerability management, endpoint and cloud security, compliance framework alignment, security automation, incident root-cause analysis, technical documentation, roadmaps, and mentoring security professionals.

Supports cloud, infrastructure, platform, and enterprise cybersecurity solutions. Responsibilities include designing and administering security technologies, troubleshooting, patching, incident response, governance, metrics, documentation, compliance, proof-of-concept evaluations, and on-call support. The role focuses heavily on IAM, UNIX permissions, privileged access, cloud IAM, user provisioning, and security controls, while advising junior engineers and supporting business teams and vendors.

Serves as the primary government contact for cybersecurity architecture and engineering. Designs and implements enclave-level security architectures, applies DoD SRGs, STIGs, security baselines, and PPSM requirements, and supports RMF and A&A activities. Conducts architecture reviews, maintains security documentation, mentors engineering staff, coordinates with stakeholders, and ensures compliance with federal and DoD cybersecurity policies. The role also evaluates emerging threats and recommends improvements to enterprise security posture.

Serve as the subject matter expert for enterprise network security infrastructure. Design, deploy, configure, and maintain firewalls, IPS, NAC, VPNs, and network segmentation. Administer Palo Alto and Cisco ASA platforms, analyze security events, support zero-trust initiatives, provide Tier III troubleshooting, conduct root-cause analysis, and maintain security baselines and documentation. Collaborate with cybersecurity teams on DoD compliance, STIGs, security frameworks, and mission-ready network operations.

Monitor security service performance, investigate information security alarms and events, conduct risk and vulnerability assessments, evaluate controls, participate in security architecture reviews, develop incident response processes, and create security and privacy education programs. The role requires hands-on experience with firewalls, endpoint security, SIEM, vulnerability scanning, and certificate management.

Lead enterprise security architecture across cloud, application, infrastructure, identity, data, and third-party environments. Develop security principles, standards, patterns, and controls; review designs; conduct threat modeling and risk assessments; guide secure-by-design implementations; and advise technical and business stakeholders. The role also supports regulatory compliance, evaluates security technologies, and strengthens organizational security practices.

Design and operate secure enterprise access to approved AI tools and model endpoints through web gateways, proxies, CASB, API gateways, and AI security controls. Implement routing, authentication, authorization, DLP, data inspection, policy enforcement, monitoring, and performance optimization for AI traffic. Partner with security, infrastructure, legal, risk, and application teams to onboard AI use cases, troubleshoot access and latency issues, develop reusable architectures, and support governance, auditability, and regulatory compliance.

Lead secure software engineering for blockchain and distributed-ledger capabilities. Design security monitoring controls, build scalable API and microservices tooling, operate CI/CD pipelines with security guardrails, and implement secure SDLC practices. Perform threat modeling, secure code reviews, vulnerability remediation, incident triage, and root-cause analysis. Provide technical leadership, mentor engineers, evaluate vendors, and validate AI-assisted security recommendations while ensuring resilience, auditability, and data protection.

Leads a team responsible for designing, deploying, integrating, hardening, and managing enterprise security platforms across endpoints, cloud, identity, networks, and security data. Oversees security engineering for mergers, acquisitions, divestitures, and platform migrations. Manages vendors, budgets, technical direction, hiring, performance, documentation, and executive risk communication across a decentralized organization.

Design and build AI-native cybersecurity platforms that analyze large-scale security telemetry, correlate events, predict threats, and generate explainable alerts. Develop scalable distributed systems, data pipelines, AI DevOps workflows, agentic systems, RAG and embedding solutions, and model integrations. Collaborate with security researchers, SMEs, product managers, and engineering teams to create trusted automation and analyst-focused threat detection, investigation, and response capabilities.

Design and build AI-powered cybersecurity platforms that ingest and normalize massive security telemetry, correlate events, predict threats, and generate explainable findings. Develop Python backend services, distributed storage systems, and AIDevOps pipelines for rapid experimentation. Integrate foundation models, agentic systems, RAG, embeddings, and graph-based models into analyst workflows. Collaborate with product teams, security experts, and engineers to deliver scalable, trusted threat detection and automation capabilities.

Maintain and enhance AWS GovCloud and DevSecOps environments by managing infrastructure with Terraform, Helm, YAML, and Kubernetes. Implement RMF and NIST security controls in CI/CD pipelines, remediate AWS Security Hub findings, develop POA&Ms, mitigate risks, support Zero Trust compliance, and detect configuration drift across cloud and infrastructure-as-code environments.

Lead product cybersecurity for connected heart-recovery medical devices across development and post-market lifecycles. Responsibilities include security architecture, threat modeling, risk assessments, cryptographic controls, secure boot, firmware protection, PKI, vulnerability management, penetration testing, SBOM analysis, secure OTA updates, regulatory submissions, and remediation planning. The role partners with R&D and cross-functional teams to implement secure development practices, embedded protections, cloud and device security, and compliance with medical-device cybersecurity standards.

Deploys, integrates, and sustains enterprise Forescout Network Access Control solutions supporting national security missions. Responsibilities include developing access-control policies, configuring CounterACT appliances, integrating security and network-management platforms, troubleshooting network and endpoint issues, supporting DoD Comply-to-Connect initiatives, and creating technical documentation and engineering designs. The role also collaborates with government stakeholders and engineering teams to improve network visibility, endpoint compliance, security, and operational resilience.

Design and ship product security improvements covering authentication, authorization, session and token handling, secrets management, third-party access, abuse detection, fraud prevention, and account takeover defense. Threat-model systems, remediate vulnerabilities, build secure developer tooling, and partner with Product, Engineering, and Trust & Safety. Mentor engineers and use AI-assisted development while balancing security controls with user experience.

Designs and implements cybersecurity controls for containerized, Kubernetes, microservices, cloud, and DevSecOps environments. Responsibilities include security monitoring, log analysis, threat and risk assessment, vulnerability assessments, incident response, compliance with RMF, NIST, FedRAMP, and related standards, and collaboration with engineering, development, and compliance teams. Requires active TS/SCI clearance with polygraph and at least seven years of cybersecurity engineering experience.

Designs, reviews, and sustains network security infrastructure across LAN/WAN, cloud, SD-WAN, and ACI environments. Responsibilities include firewall rule approval, security standards and documentation, CSD tool and sensor administration, SIEM and CDM tool support, incident investigation collaboration, security gap analysis, technology trade studies, and policy development. The role requires an active Secret clearance, U.S. citizenship, substantial cybersecurity experience, and multiple networking and cloud certifications.

Designs and hardens security controls for autonomous vessel fleets across embedded edge systems, vessel networks, and cloud orchestration. Responsibilities include secure boot, hardware roots of trust, cryptographic identity, mutual authentication, key management, secure updates, NixOS hardening, dependency vulnerability management, container security, CI/CD security, threat modeling, and incident response. The role collaborates with autonomy, platform security, manufacturing, field, enterprise security, and application security teams.

Designs, implements, and supports enterprise identity and access management across cloud, SaaS, on-premises, and hybrid environments. The role engineers authentication, identity governance, privileged access, Zero Trust controls, lifecycle processes, and secure application integrations. Responsibilities include monitoring identity risks, investigating incidents, automating provisioning and remediation, maintaining identity platforms, supporting audits, and communicating security recommendations to stakeholders.

Maintains and secures network and telecommunications infrastructure, including routers, switches, firewalls, VoIP systems, and other security devices. Provides Level 2 network and telecom support, monitors infrastructure, performs security scans and performance testing, conducts capacity planning, maintains security updates, troubleshoots issues, identifies root causes, and coordinates vendor support and installations.

Leads multiple engineering teams delivering customer-facing cybersecurity products. Sets technical direction and strategy, partners with Product Management, mentors engineering managers and engineers, establishes performance metrics, manages cross-organizational projects, hires engineering talent, and drives continuous improvement while fostering an empathetic, results-oriented engineering culture.