Top Senior Cyber Security Jobs

Owns federal system authorization, security posture, and remediation for CBP systems. ISSOs manage authorization decisions, control implementation, POA&Ms, security reviews, and documentation. Security engineers harden, monitor, and remediate systems, develop secure configurations and tooling, and address findings at their root causes. Leads oversee security engineering standards and accountability. The role requires collaboration with network, cloud, deployment, and government security teams in a documentation-heavy RMF environment.

Develop and lead enterprise security architecture across on-premises, cloud, and containerized environments. Establish security standards, roadmaps, hardening practices, and AI security controls; review architectures, guide implementations, evaluate security tools, and mitigate technology risks. Advise business and engineering stakeholders, oversee proof-of-concepts and integrations, monitor security effectiveness, and address emerging cyber threats through threat intelligence and strategic risk management.

Leads the design and implementation of secure IT infrastructure, performs security monitoring and threat analysis, enforces security controls, evaluates security technologies, manages patching and vulnerability scanning, and maintains continuous system security. Provides guidance to stakeholders, manages security projects, mentors junior engineers, and participates in incident-response on-call rotations.

Lead pre-sales security architecture engagements by designing and validating defense-in-depth solutions across hybrid, cloud, application, identity, endpoint, network, and data environments. Conduct security assessments, create remediation roadmaps, integrate security platforms, and support DevSecOps, SOC, detection engineering, incident response, compliance, and risk programs. Collaborate with sales, engineering, clients, and executive stakeholders to communicate technical trade-offs and deliver scalable enterprise security strategies.

Implements and operates Identity and Access Management solutions covering provisioning, access governance, identity federation, and secure application integrations. Develops IAM architecture and design documentation, troubleshoots access issues, supports SAML and OAuth integrations, and helps ensure policy compliance and performance. The role may lead IAM projects and work across hybrid cloud and on-premise environments using platforms such as Oracle IAM and CyberArk. It also requires Linux or Unix knowledge and may involve monitoring with SIEM tools.

Design, implement, and support enterprise network and security infrastructures for customers. Deliver professional services from discovery and design through production support, documentation, and demonstrations. Engage customers as a trusted technical advisor, support pre-sales labs/POCs, maintain demo labs, pursue certifications, and drive continuous technical development.

Lead system security engineering for secure platforms across architecture, design, integration, and deployment. Define system-level requirements, identify and mitigate technical risks, develop security documentation and program protection plans, mentor engineers, and communicate technical results to sponsors and program leadership. Support evaluation, accreditation, and implementation of cryptographic and supply-chain protections.

Lead design, integration, and deployment of trustworthy secure platforms. Define system security requirements, architect cybersecurity solutions, evaluate systems for cyber, reverse-engineering, and supply-chain threats, develop security documentation per government requirements, configure and monitor security infrastructure, mentor junior engineers, and present technical results to stakeholders.

Design and implement advanced cybersecurity solutions for DOE/NNSA programs. Perform security engineering, assessments, risk analysis, and compliance activities; develop software and technical solutions; support multi-lab teams; deliver cybersecurity training; and manage stakeholder priorities while using tools like Splunk, RSA, Tenable Nessus, and SELinux.

Lead regional network security engineering: administer and optimize WAN/LAN/Wi‑Fi, troubleshoot complex incidents, implement firewalls/load balancers, automate network tasks, ensure security/compliance, perform capacity planning, document architecture, and collaborate with cross-functional teams and vendors.

Implement and maintain Microsoft identity solutions (MIM/Microsoft FIM, ADFS, Azure AD), build custom MIM customizations and PowerShell automation, integrate SSO/federation, troubleshoot identity services, collaborate across OS/DBA/app teams, and support migration to cloud-based identity solutions.

Conduct applied security research across network, system, software, and hardware layers; develop prototypes and analyses; advise US government stakeholders; perform exploit development, protocol and traffic analysis, and RF/SDR investigations.

Hands-on senior IT security engineer/architect responsible for designing, implementing, and managing security solutions across networking, firewalls, data center, cloud, and wireless. Lead security assessments, present remediation recommendations, run red/blue exercises, support pre- and post-sales engineering, mentor peers, and deliver complex technology projects to meet client satisfaction.

Design, implement, and manage hands-on security solutions; perform complex security assessments and red/blue team exercises; support pre- and post-sales engineering; lead and mentor engineers; document and control changes; deliver multi-discipline solutions across networking, firewalls, wireless, data center, and cloud environments while ensuring high customer satisfaction.

Provide cybersecurity engineering and operations support for DoDIIS Enterprise IT Infrastructure, lead A&A preparation, ensure compliance with ICD 503 and NIST/DoD IA frameworks, and coordinate IA across security disciplines.

Design, build, and scale security infrastructure across systems, networks, endpoints, and products. Own security architecture, detection/response, vulnerability and risk management, and security policies. Integrate security into the SDLC, partner with engineering, run incident response and monitoring, lead security education, and temporarily own IT infrastructure.

Lead design and implementation of security infrastructure and administer mission-critical engineering and DevOps applications. Manage Linux/RHEL systems, JFrog Artifactory, GitLab/GitHub, 3DX/Cameo/Jama/Teamcenter platforms, integrations, DISA STIG hardening, CI/CD integrations, and provide Tier 2/3 troubleshooting, compliance support, and ATO/RMF evidence for a classified defense program.

Lead systems security engineering for edge and embedded avionics: analyze threats, design mitigations, apply RMF, support electronic warfare/EMSO, develop cybersecurity solutions, engage customers, and transition technologies into product portfolios.

Lead security architecture strategy and roadmaps, influence stakeholders, evolve security infrastructure/products, and apply deep technical security and information assurance expertise across networking and cryptography domains.

Lead development and evangelism of end-to-end security architectures and roadmaps. Influence stakeholders to evolve security infrastructure, products, and services. Apply deep technical security, information assurance, network protocol, and cryptography expertise to design secure solutions and drive cross-functional initiatives.

Design, build, and maintain secure systems and architectures; develop security standards; perform risk assessments, vulnerability analyses, and incident response; implement identity and access management and encryption; ensure compliance; collaborate with infrastructure, application, and security teams; research and advocate security technologies and controls.

Design, evaluate, and secure complex LAN/WAN and SIGINT hardware systems. Conduct onsite assessments, lead hardware installations, model and test solutions, perform MTBF/MTTR analyses, analyze vulnerabilities, evaluate architectures, research COTS/GOTS, optimize wired and wireless networks, develop security documentation, and ensure compliance with government security requirements.

Perform technical security assessments, design and integrate IA architectures and secure networking/enclave environments, support security planning, risk analysis, and trusted relationships. Work with HPC systems (Red Hat/CentOS/SUSE), parallel file systems (Lustre, GPFS), high-speed interconnects (Infiniband, Slingshot), transition systems to operations, and support HPC/ABS SRE sustainment activities for IC missions.

Conduct offensive security assessments and red team operations to identify network and system vulnerabilities; perform malware and packet analysis; develop scripts and tools; deliver written and oral briefings to clients and management; and train and mentor junior operators.

Lead research and produce high‑impact network security insights. Advise clients on evaluation, selection and deployment of network security technologies, present at events, support sales, mentor analysts, and drive research agenda and process improvements.