Top Senior Security Engineer Jobs

Develops AI-enabled SOC automation, security tooling, data integrations, dashboards, detection engineering, and investigation workflows. Supports incident response and operational readiness across network, infrastructure, and physical security services. Partners with engineering, facilities, networking, and security teams to automate processes, troubleshoot issues, improve signal quality, and strengthen resilience. The role requires security engineering, programming, SIEM, networking, incident response, and security automation expertise.

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.

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.

Develop and operate detection and response capabilities across enterprise, cloud, and product environments. Responsibilities include building detections-as-code, triaging alerts, leading incident response and forensic investigations, threat hunting, automating workflows, maintaining SIEM and security data pipelines, developing AI-enabled security tooling, and participating in on-call rotations. The role also involves threat intelligence collaboration, security engineering mentorship, and continuous improvement of detection and response systems.

Build and maintain detection and response capabilities across enterprise, cloud, and product environments. Responsibilities include developing detections-as-code, triaging alerts, investigating and responding to incidents, conducting digital forensics and threat hunting, automating workflows, building security tooling, supporting SIEM and security data lake pipelines, developing AI-driven security systems, participating in on-call rotations, and mentoring engineers.

Build and maintain detection and response capabilities across enterprise, cloud, and product environments. Responsibilities include developing detections-as-code, triaging alerts, investigating and responding to incidents, conducting digital forensics and threat hunting, automating workflows, building security tooling, supporting SIEM and security data lake pipelines, developing AI-enabled security systems, participating in on-call rotations, and mentoring engineers.

Leads product security engineering for defense training systems across requirements, architecture, assessment, testing, certification, and sustainment. Develops cybersecurity controls aligned with DoD RMF, JSIG, and NISPOM; conducts threat and risk assessments; identifies vulnerabilities; tracks mitigation; advises stakeholders; and supports cyber validation, audits, and certification. The role collaborates with engineering, customer, supplier, and industry partners while independently completing cybersecurity tasks.

Lead cloud security across AWS environments, managing vulnerabilities, misconfigurations, logging, threat detection, incident response, SIEM improvements, and security reviews. Maintain Orca Security and advise CloudOps and IT teams on best practices. Support audits, assess emerging technologies and AI projects, communicate technical risks to leadership, and promote security awareness. The role requires independent leadership, automation, stakeholder collaboration, and experience with AWS security services, containers, Terraform, scripting, DevSecOps, and threat management.

Lead enterprise cybersecurity engineering strategy across encryption, data protection, cryptographic policy, cloud security, DevSecOps, and automated security controls. Architect scalable key management and tokenization solutions, establish security reference architectures, automate detection and remediation, resolve systemic vulnerabilities, and embed security into software, cloud, infrastructure, and data platforms. Mentor senior engineers, influence technical roadmaps, and translate emerging threats into proactive architectural mitigations.

Leads security engineering across multiple technology domains, clarifies security requirements, supports multi-level network security, and advises stakeholders during vulnerabilities and disruptive events. Performs threat modeling, risk assessment, vulnerability and penetration testing, and validates AI-assisted security recommendations. Designs and implements enterprise security solutions while ensuring security testing, control validation, traceability, auditability, and resiliency throughout software development lifecycles and toolchains.

Lead AI-focused application security at Samsara by assessing software, code, hardware, and firmware against AI-driven attacks. Build and red-team AI-enabled security tools, apply LLMs and agentic workflows to security operations, develop fixes with engineers, and shape company-wide AI security strategy. Partner with engineering, hardware, and executive stakeholders on threat modeling, vulnerability management, secure AI adoption, and offensive validation.

Leads AI-focused application security across software, cloud, hardware, and firmware. Conducts security assessments and AI-driven red-team exercises, develops secure-code fixes and AI-enabled security tooling, validates controls for LLM and agentic systems, and shapes organization-wide AI security strategy. Partners with engineering, hardware, and executive stakeholders to identify threats, implement mitigations, and safely adopt AI within security operations.

Lead AI-focused application security across software, cloud, hardware, and firmware. Conduct offensive security assessments and AI-driven red teaming, develop secure-code fixes and AI-enabled security tooling, evaluate threats such as prompt injection and agent abuse, and establish organization-wide AI security strategy. Partner with engineering, hardware, and executive leadership to strengthen security controls and adoption of safe AI workflows.

Build advanced threat detections across cloud, container, corporate, and edge environments; lead complex security investigations, threat hunts, and incident response; develop AI agents and automations for detection and triage; manage EDR, SOAR, and SIEM tools; analyze telemetry and forensic artifacts; and participate in on-call rotations.

Identify and continuously monitor exposed digital assets, shadow IT, vulnerabilities, and attack paths. Prioritize remediation based on business impact, collaborate with infrastructure and development teams, implement commercial attack surface management solutions, and build in-house discovery tools and automation pipelines. The role requires cloud, network, vulnerability assessment, offensive security, threat intelligence, and large-scale infrastructure expertise, along with Korean and English proficiency.

Own product and infrastructure security across fintech products and cloud environments. Lead threat modeling, architecture reviews, secure code reviews, vulnerability management, bug bounty operations, CI/CD security scanning, IAM and secrets management, and security standards. Partner directly with engineering leadership to identify and remediate critical vulnerabilities across backend services, APIs, frontends, Solana programs, and infrastructure.

The Senior Security Engineer researches, implements, optimizes, and maintains security products and services. The role manages cloud security and risk, security controls, incident response, forensic investigations, vulnerability scanning, access-log monitoring, and disaster recovery planning. It supports application and infrastructure security projects, develops risk and incident dashboards, conducts root-cause analysis, and serves as an escalation point while coaching junior security professionals.

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.

Design and implement enterprise security architecture aligned with NIST, ISO 27001, and CIS standards. Build security data aggregation, normalization, and automation pipelines using VBScript, Python, and PowerShell. Lead tooling rationalization initiatives, consolidate security telemetry, reduce operational costs, and establish enterprise monitoring and incident response programs with detection, escalation, and investigation procedures.

Secures Snyk’s GCP and AWS cloud platforms through threat modeling, IAM hardening, Kubernetes and container security, Terraform and pipeline fixes, CSPM integration, and secure configuration baselines. Uses AI coding agents and MCP integrations to scale infrastructure remediation while reviewing changes for unsafe defaults, excessive permissions, and agent-related risks. Works consultatively with platform teams to implement and measure security improvements.

Lead the design and implementation of enterprise security solutions, clarify multi-network security requirements, perform threat modeling, vulnerability and penetration testing, triage risks and incidents, advise stakeholders, and drive cloud-native and software security initiatives while working independently.

Leads complex security event investigations and incident response across Linux, macOS, cloud, and Kubernetes environments. Develops detections, automation, runbooks, and response workflows; coordinates containment and remediation; conducts post-incident reviews; partners with threat intelligence and detection engineering teams; mentors junior engineers; and leads operational improvements for a 24/7 SOC.

Designs, builds, automates, and operates security capabilities across Azure, GCP, and on-premises environments. Responsibilities include Python automation, AI/LLM security workflows, infrastructure as code, cloud and network security, threat modeling, vulnerability remediation, security tool integration, documentation, troubleshooting, incident improvement, and on-call support. The role owns security services through production, collaborates across engineering teams, and mentors peers.

Own security risk identification, quantification, prioritization, and remediation across third-party risk, assessments, and security findings. Maintain risk registers, reporting, metrics, and remediation tracking while partnering with technical and business stakeholders. Lead AI risk management for ISO 42001 certification and build automation, scripting, and AI-enabled tools to improve GRC workflows. Monitor emerging risks, frameworks, regulations, and threat trends, communicating business-relevant risk insights to leadership.