Top Senior Cyber Security Jobs

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.

Leads cybersecurity engineering and defensive cyberspace operations for DoD mission systems. Oversees 24/7 monitoring, incident response, threat hunting, vulnerability management, forensics, detection engineering, RMF activities, and cyber threat emulation. Guides multidisciplinary teams, develops Elastic dashboards and analytics, manages documentation and compliance, and strengthens cyber defense capabilities across classified and unclassified environments.

Lead engineering-driven enterprise data protection and DLP capabilities across cloud, SaaS, endpoint, email, collaboration, and web environments. Build automated policy-as-code workflows, CI/CD pipelines, reusable controls, integrations, detection logic, and operational health checks. Partner with technical, compliance, privacy, legal, and business teams to improve data protection effectiveness. Investigate events, reduce false positives, establish governance standards, and define metrics demonstrating risk reduction and operational maturity.

The Senior Security Engineer architects, implements, and supports enterprise security capabilities across vulnerability management, cloud security, identity, endpoint, application security, and security architecture. The role leads security initiatives, resolves complex platform issues, develops automation and AI-assisted workflows, establishes documentation and reporting standards, and mentors security engineers and analysts while partnering across infrastructure, application, network, cloud, and security teams.

Own end-to-end security engineering for pharmacy robots, including threat modeling, design reviews, device identity, key custody, penetration testing, vulnerability management, incident response, cloud security posture, customer security reviews, and HIPAA-related controls. Build and review code across Rust, TypeScript, and Python while partnering with on-machine, cloud, and operating-system engineering teams. Maintain evidence-backed security practices and track findings through remediation.

Designs, deploys, troubleshoots, and supports enterprise network and security infrastructure, including routing, switching, firewalls, wireless, cloud networking, VPNs, and data center services. The role analyzes operational incidents, implements remediation, maintains documentation, communicates with management, supports roadmap decisions, and participates in on-call rotations. It requires extensive experience with multi-vendor network security technologies, cloud platforms, and customer-facing technical work.

Lead architecture and hands-on development of Microsoft's AI Safety Platform, building observability, detection, investigation, threat-hunting, and distributed data-processing capabilities. Design attack detection infrastructure, correlate high-volume telemetry, apply AI security research, conduct security and privacy reviews, and partner across engineering, science, and incident response teams. Mentor engineers and provide technical leadership for complex AI security systems.

Leads implementation, administration, and support of enterprise Cisco ISE and network access control solutions. Designs authentication, authorization, device profiling, posture assessment, guest access, network segmentation, and Zero Trust capabilities across wired, wireless, VPN, and cloud environments. Troubleshoots complex access and certificate issues, manages integrations and lifecycle activities, develops automation, supports cybersecurity projects, establishes standards and controls, partners with infrastructure teams and vendors, and mentors junior engineers.

Designs, implements, and maintains enterprise security controls across network, cloud, endpoint, and identity environments. Engineers firewalls, IDS/IPS, secure web gateways, segmentation, IAM, cloud security configurations, logging pipelines, and detection integrations. The role also hardens infrastructure, validates assessment findings, owns security platforms, evaluates new technologies, develops standards and runbooks, and partners with Cyber Defense, Infrastructure, Application, and business teams on secure architecture, compliance, and risk reduction.

Owns the design, operation, security, and continuous improvement of enterprise cryptographic infrastructure, including PKI, HSMs, key management, certificate lifecycle automation, and cloud cryptographic services. Leads signing ceremonies, compliance efforts, post-quantum cryptography planning, cryptographic policy development, and CBOM maintenance. Partners with security, infrastructure, and compliance teams on audits, risk assessments, and incident response while mentoring engineers and guiding the technical roadmap.

Conducts information system security engineering for a Naval Information Warfare Center program, including defining security requirements and integrating controls into technology components. Supports system design reviews, cybersecurity assessments, and RMF activities across hardware and software development. Requires cybersecurity experience, IA certification, U.S. citizenship, and Top Secret/SCI clearance. Travel is approximately 20% for security assessments.

Design, build, and operate scalable security data platforms and ingestion pipelines. Develop identity management features, troubleshoot distributed production systems, improve reliability and performance, analyze telemetry, and implement automated validation, staged deployments, CI/CD, and AI-assisted engineering practices. Collaborate with engineers, product managers, customers, and cross-functional teams to deliver secure, efficient, cloud-native services.

Designs and integrates secure information systems, cloud, and defense architectures; leads federal NIST RMF and ATO processes; implements security controls; performs vulnerability, threat, and risk assessments; advises engineering and program teams; and manages continuous monitoring, compliance, audit, and patch-management activities.

Designs and implements enterprise security architectures across networks, cloud, platforms, applications, and data environments. Develops secure architecture documents, models risks, designs controls, assesses current environments, identifies gaps, and creates security maturity roadmaps. Advises stakeholders on security technologies, Zero Trust, data protection, network security, and compliance requirements while partnering with engineering, cloud, platform, and cybersecurity teams. Requires substantial cybersecurity and security architecture experience, enterprise cloud knowledge, and Secret clearance.

Designs and implements scalable trust and identity infrastructure, including secrets management, PKI, authentication, and access control services. The role defines architecture, leads technically complex initiatives, improves engineering standards and reliability, and partners across Product, Security, Compliance, and Engineering. It requires strong systems engineering experience with Linux, networking, distributed systems, modern programming languages, and infrastructure tooling. Occasional on-call nights and weekends may be required.

Provides technical leadership for OT product security architecture across industrial automation, robotics, controls, software, networks, edge, and cloud environments. Defines secure architectures, cybersecurity requirements, standards, segmentation, monitoring, and vulnerability remediation strategies. Leads threat modeling, assessments, penetration testing, compliance support, incident response, and secure lifecycle practices. Partners with engineering, product, infrastructure, operations, and customer teams while mentoring cybersecurity and engineering staff.

Provides information assurance, systems administration, vulnerability assessment, security planning, risk analysis, and secure system design for enterprise network, server, desktop, and application environments. Develops security solutions, enforces trusted relationships across systems, and supports government information security programs. Requires shift and weekend support as needed, an active CASP+, SecurityX, or CISSP certification, and an active TS/SCI clearance with polygraph.

Designs, engineers, tunes, and maintains security detections, correlation rules, behavioral analytics, and CI/CD pipelines for detection content. Supports network security, access management, incident response, risk assessments, security architecture, and complex troubleshooting. Leads incident recovery, root cause analysis, testing, technical escalations, vendor coordination, and collaboration with security operations, fraud, threat intelligence, infrastructure, and engineering teams.

Leads technical security sales engagements through demonstrations, proofs of concept, hackathons, architecture workshops, and customer consultations. Designs secure, scalable cloud and hybrid architectures, resolves technical blockers, and advises customers on Microsoft Security solutions, including Defender and Sentinel. Develops security posture recommendations, supports XDR, zero trust, cloud security, and AI adoption strategies, while influencing technical decisions and representing Microsoft in developer communities.

Designs and evaluates secure enterprise technology deployments through end-to-end security and threat analysis. Partners with business, IT, and cybersecurity teams on network, application, cloud, and enterprise security controls. Develops security guidance and mitigation requirements, communicates cybersecurity programs to stakeholders, documents best practices, and provides technical mentorship across concurrent initiatives.