Top Senior Cyber Security Jobs

Build and operate a reliable security platform across hundreds of AWS environments. Responsibilities include security telemetry and OpenSearch infrastructure, GitOps deployments, Kubernetes and AWS security controls, cross-account and multi-region architecture, Python automation, and agentic AI workflows. The role participates in on-call support, security incident enablement, audit evidence automation, and reliability improvements while collaborating with Security Operations, Risk, and SRE teams.

Protects enterprise systems and networks by assessing vulnerabilities, designing security architecture, implementing controls, responding to incidents, managing remediation, and tracking security metrics. Supports cloud, endpoint, identity, application, and enterprise security initiatives; contributes to resilience and disaster recovery; updates procedures; communicates business risks; and mentors less-tenured cybersecurity staff.

Leads technical security engagements involving presentations, demonstrations, workshops, architecture design, and production-ready pilots. Designs and proves Microsoft and third-party cloud security, compliance, privacy, XDR, zero trust, and data protection solutions. Collaborates with sales, consulting, and partner teams, resolves technical and competitive blockers, influences strategy, and guides customer implementations. The role requires strong technical pre-sales or consulting experience and expertise in cloud, hybrid, and on-premises infrastructure.

Designs, operates, and improves network security controls across Microsoft’s global cloud and datacenter infrastructure. Responsibilities include investigating threats and intrusions, developing detections, maintaining security hardware and software, implementing automation and policy standards, responding to incidents, supporting on-call operations, and leading mitigation and postmortem improvements. The role also provides technical direction for firewalls, IDS/IPS, segmentation, VPN, DDoS protection, and other network defense technologies.

Leads the architecture, engineering, operation, and lifecycle management of enterprise network security services. Designs and supports network access control, authentication, firewalls, VPN, segmentation, Zero Trust, DNS security, certificates, monitoring, and cloud security integrations. Acts as a senior escalation resource for incidents, troubleshooting, and root-cause analysis. Establishes technical standards, leads complex projects, mentors engineers, collaborates across technology teams, and supports reliability, compliance, documentation, automation, and continuous improvement.

Owns SIS’s information security program and ISO 27001 certification, including security architecture, control implementation, vulnerability management, incident response, application and vendor assessments, automation, access governance, audit readiness, security questionnaires, policies, metrics, and physical security technology oversight. The role provides senior technical guidance across cloud, identity, endpoint, network, application, and physical security environments while operating within ITIL processes.

Designs, deploys, and optimizes enterprise network security solutions for clients. Leads firewall, SD-WAN, segmentation, secure access, identity, and SASE implementations; resolves critical incidents; performs security assessments; advises technical and executive stakeholders; collaborates across cloud and infrastructure teams; and mentors junior engineers.

Secures enterprise applications, cloud platforms, networks, and infrastructure through security engineering, monitoring, threat detection, vulnerability management, and incident response. Designs security controls, develops security policies and documentation, supports hybrid and air-gapped environments, and mentors technical teams. The role also integrates applications and advanced AI systems, manages data architectures, and applies cybersecurity practices across AWS, Azure, or Google Cloud environments.

Deploys, integrates, maintains, and troubleshoots cybersecurity solutions across government customer environments. Performs STIG compliance validation, vulnerability scanning, remediation, system hardening, RMF support, configuration management, and security testing. Creates technical documentation and presents security concepts and remediation plans to stakeholders. The role requires extensive onsite travel to CONUS and OCONUS locations and collaboration with government personnel, vendors, and engineering teams.

Designs, implements, and strengthens cybersecurity controls across enterprise infrastructure, networks, endpoints, data centers, and sensitive systems. Administers security platforms, firewalls, endpoint protection, email security, identity controls, vulnerability management, logging, and threat detection. Leads incident response, investigations, remediation, hardening, risk assessments, and compliance activities. Develops security automation, documentation, and technical standards while collaborating with infrastructure and application teams. Provides senior-level escalation support and guidance on cybersecurity best practices.

Leads enterprise cybersecurity engineering across incident response, threat detection, identity and endpoint security, vulnerability management, cloud security, architecture, compliance, disaster recovery, and cyber resilience. Owns Microsoft security technologies, security monitoring, risk remediation, vendor relationships, security awareness, and executive reporting. Partners with infrastructure, IT, business, and external teams to strengthen controls, support audits, secure cloud modernization, and improve organizational cybersecurity maturity.

Leads cybersecurity engineering across identity, endpoints, cloud, data protection, security operations, vulnerability management, incident response, and OT/manufacturing environments. Owns Microsoft security platforms, designs security controls and architecture, automates processes with PowerShell and KQL, coordinates managed security providers, validates remediation, supports governance and compliance, and communicates technical risks and corrective actions to stakeholders.

Lead the technical presales process for Proofpoint’s data security and insider risk solutions. Partner with sales teams, conduct technical discovery, design security architectures, and manage proof-of-concept and production evaluations. Present solutions to customers, support deployments and training, collaborate with Professional Services, Engineering, Product Management, and Support, and provide customer insights to improve products. The role also develops internal documentation, training, and repeatable sales engineering processes.

Build a scalable AI security platform, foundational services, APIs, SDKs, and guardrails for AI-powered security agents. Design secure, reliable distributed systems incorporating identity, authentication, authorization, encryption, and data protection. Partner with security and engineering teams to deliver reusable platform capabilities, improve performance and developer experience, and shape the platform’s technical architecture. The role requires hands-on software engineering experience with AI platforms, cloud-native infrastructure, and large-scale systems.

Reviews and assesses classified information systems under the Risk Management Framework, evaluating security plans, controls, compliance, and risk documentation. Conducts security design reviews, threat and risk assessments, site inspections, and incident response support. Develops inputs for POA&Ms, traceability matrices, and risk assessment reports while advising government and technical stakeholders on information security requirements.

Develop and integrate cybersecurity features into autonomous vehicle platform software, spanning sensor abstraction, data processing, middleware, embedded systems, and cloud infrastructure. Conduct threat modeling and security architecture analysis, manage product security requirements, guide security governance, and collaborate across hardware, software, safety, performance, algorithms, and cloud teams. Build scalable, performant system software using C++, C, and Python across Linux, QNX, ROS, and real-time environments.

Develop and manage DevSecOps security services, secure CI/CD pipelines, assess cloud security posture, correlate source-to-cloud vulnerabilities, and automate security controls. The role supports CNAPP configuration, infrastructure-as-code and policy-as-code integration, secure coding standards, vulnerability remediation, cloud workload protection, and enterprise security architecture initiatives across technology and governance teams.

Designs, deploys, and secures Microsoft Windows infrastructure for customer environments. Responsibilities include Active Directory and Group Policy management, Windows hardening, RBAC and least-privilege implementation, endpoint protection deployment, security assessments, remediation, patch processes, documentation, and customer knowledge transfer. The role requires extensive Windows security experience and may involve up to 30% travel.

Leads security engineering teams responsible for designing, implementing, operating, and improving security controls across secure software development, cloud, application security, vulnerability management, and DevSecOps. Advises stakeholders, translates security strategy into goals, oversees security architecture and product roadmaps, ensures compliance and best practices, and manages production security outcomes and KPIs.

Build and scale backend security platform services, including authentication, authorization, identity infrastructure, permission systems, and data models. Lead cross-team technical initiatives, standardize security solutions, collaborate with compliance and mission stakeholders, and influence architecture and engineering standards. The role requires strong system design, backend development, security expertise, technical leadership, and the ability to operate in sensitive environments.

Leads secure enterprise architecture design and GitLab Professional Services implementations across application security, cloud security, DevSecOps, identity, vulnerability management, and compliance. Guides SaaS, Self-Managed, and Dedicated deployment decisions; leads CI/CD, source control, and security-tool migrations; conducts risk assessments and threat modeling; supports pre-sales scoping and statements of work; coordinates cross-functional delivery; mentors consultants; and develops security enablement materials.

Designs, implements, and improves enterprise security capabilities across endpoint, cloud, network, data protection, email security, vulnerability management, SIEM, SOAR, and Zero Trust environments. Owns major security platforms including Rapid7, Microsoft Defender, Microsoft Purview, Mimecast, and Zscaler. Develops scalable architectures, detection and automation workflows, vulnerability controls, email protections, and security integrations while partnering with infrastructure, network, cloud, application engineering, security operations, and MDR teams.

Provides technical leadership for enterprise AI security, designing secure AI platform architectures, vetting frameworks, identity and posture management for AI agents, and preventative security guardrails. The role requires building scalable security systems with Python, Go, or Java, managing infrastructure as code, addressing cloud and container security, mentoring engineers, and advising leadership on AI security risks.

Researches attacks against microelectronic devices and develops hardware security controls for tamper-protected microcontrollers, FPGAs, ASICs, and related IP. Analyzes secure architectures, performs side-channel and glitching assessments, documents findings, supports technical requirements, prepares research papers and briefings, and collaborates with DoD partners and vendors. The role is conducted onsite in a microelectronics security laboratory and requires an active Secret clearance with progression to Top Secret.

Leads cybersecurity engineering and defensive operations for a DoD Cybersecurity Service Provider. Oversees incident response, threat hunting, vulnerability management, digital forensics, threat emulation, detection engineering, RMF compliance, and 24/7 monitoring. Provides technical leadership, develops Elastic dashboards and analytics, manages cyber documentation and reporting, and ensures mission operations meet CSSP standards and response timelines. The role is onsite in Huntsville, Alabama, with limited telework and less than 10% travel.