Top Security Engineer Jobs

Leads enterprise network security engineering and monitoring, establishing secure network designs, standards, and policies. Responsibilities include engineering, designing, troubleshooting, and supporting firewalls, DMZs, NAC, SD-WAN, VPNs, secure tunneling, VLANs, routers, switches, and network architectures. Provides subject matter expertise and Level III support while collaborating with cybersecurity engineering leadership.

Manages enterprise CCTV, access control, video archival, and security technology platforms across multiple stadium and commercial properties. Responsibilities include Genetec infrastructure administration, system redundancy, maintenance, troubleshooting, technology project management, documentation, training, user support, vendor coordination, budgeting, and team development. Requires extensive enterprise security systems experience, Genetec certification, networking knowledge, field deployment experience, and flexibility for nights, weekends, holidays, and physical work.

Design and build automated security tooling for distributed microservices on GCP. Secure IaC (Terraform), lead vulnerability lifecycle and threat modeling, support compliance (SOC2, ISO27001), troubleshoot production security using distributed tracing, and embed security into CI/CD pipelines.

Leads AI security, systems engineering, platform modernization, and developer productivity initiatives. Designs secure AI adoption strategies, manages AI vulnerability identification and remediation, builds CI/CD and DevSecOps automation, modernizes Java platforms, and enables rapid security releases. Partners across architecture, security, infrastructure, and development teams to establish enterprise engineering standards, improve software delivery, reduce technical debt, and strengthen security posture.

Configures, supports, and designs enterprise firewall and network security infrastructure. Troubleshoots security incidents and outages, performs root-cause analysis, develops firewall rules, analyzes network traffic and threats, and conducts penetration testing and vulnerability assessments. Provides 24/7 on-call support and participates in emergency management activities.

Harden and maintain AWS GovCloud, Microsoft GCC High, cloud, endpoint, container, and CI/CD environments for defense applications. Investigate vulnerabilities, secure software supply chains, lead threat modeling, enforce configuration and patching policies, monitor SIEM and cloud security alerts, and support federal compliance with CMMC, NIST, and FedRAMP standards. Collaborate across product, platform, and compliance teams to integrate security into the SDLC and support incident response.

Implements and maintains security technologies across endpoint, network, cloud, server, and mobile environments. Monitors alerts, investigates incidents, performs vulnerability assessments, develops detection rules, hardens systems, supports identity and access controls, automates security tasks, and coordinates remediation. The role also supports audits, security reviews, documentation, reporting, and continuous improvement while collaborating with IT and security teams.

Leads and mentors security professionals implementing the RMF lifecycle for federal IT systems. Oversees system categorization, control selection, implementation, assessment, authorization documentation, continuous monitoring, risk analysis, remediation, incident response, audit support, and stakeholder training. Serves as a senior cybersecurity advisor while tracking security engineering risks and improvement opportunities. Requires extensive security engineering experience, DoD 8140.03 advanced proficiency, specialized certifications or an advanced degree, and an active TS/SCI clearance with polygraph eligibility.

Assess and document cybersecurity controls across federal information systems, coordinate remediation with system stakeholders, and oversee RMF activities throughout the system authorization lifecycle. Guide categorization, control selection, implementation, assessment, continuous monitoring, risk documentation, audit support, and incident response. Serve as a senior technical cybersecurity advisor, communicate risks and metrics to leadership, and provide security guidance and training while maintaining alignment with NIST and DoD requirements.

Maintains security infrastructure, firewalls, PKI, access controls, vulnerability management, incident response, compliance documentation, and threat detection systems. Uses AI-powered SIEM, EDR, UEBA, and SOAR tools to automate security operations and identify emerging threats. Develops policies based on NIST, FISMA, PCI, PII, and CJIS requirements; performs risk assessments, system hardening, and security training. Collaborates with IT teams and evaluates AI/ML security, privacy, and supply chain risks.

Secure and harden AWS and GCP infrastructure, manage vulnerabilities, implement compliance controls, maintain audit evidence, improve Kubernetes and CI/CD security, support reliability and incident response, and develop automation for security and infrastructure workflows. The role also contributes to application security, code reviews, production troubleshooting, detection, and FedRAMP readiness.

Leads an application security scrum team and integrates security throughout software development. Responsibilities include vulnerability testing and remediation, securing CI/CD pipelines, threat modeling web and AI applications, managing SBOMs and dependencies, integrating security tools, verifying and signing artifacts, and guiding developers on secure engineering practices in a federal environment.

Lead enterprise vulnerability management and security configuration programs. Analyze vulnerabilities, assess business risk, develop remediation and mitigation strategies, manage exceptions, and engineer automated configuration compliance capabilities. Partner with infrastructure, cloud, application, engineering, and security teams to improve cyber risk visibility and security posture. Serve as a subject matter expert, technical escalation point, and mentor while translating complex findings into actionable recommendations for technical and business stakeholders.

Architect, deploy, configure, administer, and maintain Splunk instances for clients and internal teams. Develop security use cases, configure alerts, evaluate and prioritize security data sources, and guide log collection and forwarding to SIEM platforms. Collaborate with clients, SOC analysts, and project coordinators, participate in project meetings, and support a rotating on-call schedule.

Implements and operates application security controls, scanners, governance processes, and cloud infrastructure for global digital brands. Develops APIs, scripts, Kubernetes clusters, and infrastructure-as-code automation; conducts application security reviews, threat modeling, adversarial testing, and vulnerability assessments. Partners with development and operations teams to communicate findings, guide remediation, and promote secure software development practices across cloud-native environments.

Implements and operates application security controls, scanners, governance processes, and cloud infrastructure. Automates security reporting and controls through scripts and APIs, maintains Kubernetes environments, conducts threat modeling and adversarial testing, reviews applications and releases, and guides development teams in remediating vulnerabilities and following software security best practices.

Lead secure design and code reviews, conduct penetration testing and code audits, build secure-by-default systems, improve security tooling and vulnerability management, operate responsible disclosure programs, remediate production vulnerabilities, and address customer security concerns. The role partners closely with engineering teams and requires strong coding, risk assessment, offensive security, and security communication skills.

Implements and maintains application security controls, tools, governance processes, and cloud infrastructure for global digital operations. The role assesses vulnerabilities, conducts security reviews, threat modeling, and adversarial testing, and supports remediation with development teams. It also develops APIs, scripts, automation, CI/CD integrations, and Kubernetes-based infrastructure using infrastructure as code. The engineer guides teams on software security best practices and operates security services supporting enterprise production workloads.

Leads the design and implementation of enterprise cloud security controls across AWS environments. Builds policy-as-code, infrastructure-as-code, CI/CD guardrails, posture checks, drift detection, and automated remediation. Establishes technical standards, mentors engineers, influences cross-team architecture, operationalizes CSPM findings, supports audit and governance activities, and participates in on-call rotations.

Installs, configures, maintains, and upgrades global network infrastructure, including routers, switches, firewalls, VPN endpoints, datacenter, backbone, and CDN environments. Troubleshoots outages, traffic issues, hardware and software problems, and network incidents. Coordinates with ISPs and vendors, manages switch infrastructure, handles RMAs and errors, and independently resolves complex network issues with limited supervision.

Provides application security engineering and sustainment throughout system lifecycles. Responsibilities include administering, configuring, tuning, monitoring, and securing applications; supporting ISSOs with ATO/ATT documentation; integrating AI and ML into security tools; conducting security impact assessments; managing configurations and changes; ensuring logging compliance; and supporting vulnerability management. Requires significant cybersecurity-related technical experience and a TS/SCI clearance.

Leads end-to-end security architecture for distributed storage platforms and AI-driven workloads. Responsibilities include threat modeling, SSDLC, IAM integration, RBAC and ABAC authorization, encryption and key management, multi-tenant isolation, secure APIs and protocols, observability, anomaly detection, compliance, and cross-functional technical leadership. The role partners with storage, protocol, control-plane, and platform engineering teams while mentoring engineers and influencing secure system design.

Provides senior cybersecurity engineering support across system lifecycles, implementing DoD RMF and Zero Trust controls. Performs ACAS vulnerability assessments, remediation validation, continuous monitoring, Azure security architecture, Azure Policy administration, and Defender for Cloud security posture management. Develops Xacta automation and Infrastructure as Code workflows for evidence collection, compliance validation, and continuous authorization. Collaborates with cloud, DevSecOps, architecture, and security teams while supporting assessments and authorization activities.

Designs, implements, secures, monitors, and maintains complex LAN and WAN networks. Configures routers, switches, firewalls, VPNs, load balancing, tunneling, encryption, and network monitoring systems. Troubleshoots complex network issues, optimizes performance and dataflow, maintains documentation and accreditations, supports DoD and intelligence-community requirements, and provides technical guidance to junior engineers. Requires extensive network engineering experience, Linux proficiency, certifications, and TS/SCI with polygraph clearance.

Assist Tencent’s Security Team with maintaining security infrastructure, protecting against cyber threats, and supporting compliance. Responsibilities may include SaaS security, identity and access management, DevOps and SRE automation, monitoring, logging, incident response, threat monitoring, and security data pipelines. The role requires programming, Linux, networking, systems, containerization, debugging, and collaboration skills, with opportunities to work across cloud, infrastructure, observability, and security operations projects.