Top Remote Senior Security Engineer Jobs

Senior technical authority for security architecture, engineering design, and enterprise risk mitigation. Designs, implements, and configures security solutions across firewalls, endpoints, monitoring, vulnerability management, incident response, and forensics. Leads tactical implementation, performs assessments, product evaluations, project support, and supports the Information Security program and strategic objectives.

Lead and execute hands-on red team operations simulating real-world adversaries across applications, cloud, and enterprise environments. Identify and chain high-impact vulnerabilities, perform manual exploitation and control bypasses, validate detections and response, produce actionable remediation guidance, improve tooling/automation, and mentor junior red team engineers.

Design and build agentic AI-driven security testing systems and automation frameworks. Integrate static/dynamic analysis, reverse engineering, network analysis, and custom tooling to enable autonomous and human-in-the-loop workflows that scale security testing across mobile, desktop, IoT, and APIs. Prototype, evaluate, and productionize agent orchestration, evaluation, and MLOps infrastructure.

Design, build, and scale HSM-backed cryptographic and key-management services for large-scale cloud environments. Implement PKI, TLS, client-side encryption, TEEs, and Confidential VMs. Integrate identity (OAuth/SAML/Keycloak) and secure Google Workspace services. Ensure cryptographic lifecycle, compliance (FIPS), high availability, and support secure deployments across cloud APIs, OS, and hardware.

Lead and own the end-to-end cybersecurity program: achieve and maintain DoD ATO (RMF), embed security automation into CI/CD, run vulnerability scanning and remediation, harden microservices and containers, produce eMASS artifacts, and report risk and progress to leadership.

Conduct offensive cyber operations, red team and penetration tests, network exploitation, malware analysis, and tool development. Analyze network/system weaknesses, brief clients and management, and train junior operators to improve operational tradecraft and efficiency.

Lead cloud security for GCP and Azure by operationalizing CNAPP tooling, embedding security-as-code with Terraform/CI-CD, driving vulnerability management, improving detection and response with Chronicle, hardening data and endpoint security, and mentoring engineers while serving as senior escalation during incidents.

Lead QA efforts for Cisco Meraki MX/Catalyst network security and SD-WAN features. Design and execute test strategies, build automation for CI/CD, validate security services (malware, IPS, URL filtering, SSL/TLS), and drive performance and scalability testing using traffic generators and AI-driven techniques.

Lead technical marketing for API, AI agent, and application security by deploying and testing Akamai products, building PoCs, demos, labs, and attack simulations, creating technical content and enablement, validating messaging, and presenting technical briefings while collaborating with product, engineering, and field teams.

Lead Datadog-first security observability and detection engineering: design, scale and tune Datadog Cloud SIEM, log pipelines, detection rules and telemetry. Correlate signals across EDR, cloud and identity, automate detection-as-code, reduce false positives, and build dashboards, monitors and workflows in partnership with Security Ops, SRE and Engineering.

Own product security across the SDLC: threat modeling, secure design reviews, application security testing (code review, SAST/DAST), supply-chain/dependency hardening, CI/CD security, and building automated security tooling and guardrails while partnering with engineering and product.

Own and harden corporate security for endpoints, identity, and SaaS. Implement Zero Trust and device-trust patterns, build automation and tooling, run detection/response for enterprise systems, and serve as the internal security SME for corporate workflows.

Senior Systems Engineer responsible for managing and securing AWS infrastructure, implementing security monitoring and controls, automating infrastructure with Terraform/PowerShell, maintaining hardening and patching standards, troubleshooting hybrid environments, and supporting backup, DR, and high-availability configurations while collaborating with teams and maintaining documentation.

Build full-stack features for Google Drive and OAuth surfaces, design and ship LLM-powered agentic workflows for detection, investigation, and remediation, integrate with Google Workspace APIs at scale, partner with product and design, collaborate across teams, and contribute through mentorship, code review, and ownership from design to production.

Secure and harden cloud infrastructure, identity systems, and internal AI/agentic tooling. Build security automation, detection pipelines, and IaC controls (Terraform). Investigate incidents, query logs (Athena, CloudTrail Lake), design IAM policies, support secure customer deployments, research cloud/AI security threats, and produce runbooks and playbooks to scale security practices.

Lead threat modeling, secure design reviews, penetration testing and deep code review for Unity products. Build and operate security automation and AI-assisted tooling, secure AI/LLM integrations and agentic systems, drive remediation with engineering teams, investigate AppSec incidents, and contribute to the secure development lifecycle and compliance.

Design, build, and maintain SOAR playbooks and automated incident-response workflows; integrate security, IT, and cloud systems; deploy cloud security infrastructure via IaC; apply AI/LLM tools to security automation; collaborate with SOC, detection engineering, and IR teams; measure and report automation performance and ROI to leadership.

Lead application security across product, pipeline, and customer environments by partnering with engineering to integrate secure design, conduct threat modeling and risk assessments, manage code and supply-chain security (SAST/DAST), triage bug bounty findings, harden Kubernetes and multi-tenant architectures, and participate in on-call rotation.

Design and mature product security for a cloud-scale, ML-powered SaaS platform. Perform threat modeling and security design reviews, triage vulnerabilities, conduct manual code reviews, implement automated defenses, and train engineering teams on secure development practices.

Lead application security initiatives across the SDLC: perform threat modeling, secure design reviews, remediation guidance, third-party pen test management, develop security tooling, advise leadership on risks, mentor teammates, and improve application security maturity and training.

Lead embedding security into software delivery by partnering with engineering teams to improve CI/CD security, triage and remediate findings, design secure-by-default patterns, automate security validation and evidence generation, facilitate threat modeling, and provide reusable templates and guidance to reduce risk at scale.

Embed security into software delivery by partnering with engineering teams to improve CI/CD pipeline security, triage and remediate findings, perform threat modeling, design secure-by-default patterns, build reusable templates and automation, support compliance and audit evidence, and communicate security standards and best practices.

Lead FedRAMP, SOC 2, and ISO 27001 compliance efforts by hardening AWS and Kubernetes infrastructure, implementing security controls, automating evidence collection, improving CI/CD security, and collaborating with security, legal, and engineering teams to support regulated customers.

Lead offensive application security work across the core product: hunt and remediate vulnerabilities, harden systems, safeguard PHI, scale AI-driven vulnerability discovery, mentor engineers, and partner with SRE and security teams to improve resilience and disaster recovery.

Senior technical responder for application security incidents: lead escalations, analyze attacks and logs, design/implement custom security policies, perform forensics, automate ASR workflows, mentor engineers, and collaborate with customers and cross-functional teams to remediate threats and improve products.