Top Senior Cyber Security Jobs in Seattle, WA

Leads and consolidates a centralized security architecture engineering organization supporting threat modeling, architecture automation, testing, quality, SRE, and DevOps platforms. Owns engineering strategy, technical architecture, capacity allocation, operating standards, delivery quality, production resilience, hiring, staffing, performance management, and career development. Partners with product leadership to prioritize investments, establish measurable outcomes, and align engineering resources with business value and risk reduction.

Leads enterprise email security strategy, architecture, engineering, modernization, and lifecycle management. Oversees phishing protection, threat detection, encryption, DLP, cloud security, incident response, risk remediation, governance, metrics, vendor relationships, and regulatory alignment. Partners with cross-functional stakeholders, presents to executives, leads engineering teams, and applies AI-enabled workflows to improve security analysis and operational effectiveness.

Architects and implements network security for hyperscale cloud and AI infrastructure, including firewalls, intrusion prevention, segmentation, zero trust, monitoring, and incident response. Secures GPU clusters, high-speed interconnects, and cloud services while collaborating with networking, infrastructure, DevOps, and software teams. The role also contributes to security policies, compliance controls, design reviews, automation, and security education across the organization.

Leads security engineering efforts by designing secure enterprise solutions, developing and reviewing production code, conducting threat modeling and vulnerability testing, and strengthening security controls. Uses authorized AI tools to accelerate security workflows while validating outputs, protecting sensitive data, and maintaining auditability. Partners with stakeholders to address vulnerabilities and improve resiliency across the SDLC.

Build and operate secure, resilient distributed systems for secrets and key management across Cloudflare’s global network. Re-architect internal PKI and machine or workload identity systems, participate in on-call incident response, support internal developers, and advise engineering teams on secure system design. The role requires software development, distributed systems expertise, Linux/UNIX administration, and hands-on security implementation experience.

Designs and implements security controls for backend services and multi-cloud infrastructure. Conducts security reviews, remediates vulnerabilities and misconfigurations, secures CI/CD pipelines, and embeds secure design practices across engineering teams. The role also supports responsible AI and LLM adoption, mentors junior engineers, and champions security and privacy.

Secure Runpod’s multitenant GPU cloud infrastructure across bare-metal and virtualized environments. Responsibilities include designing workload and network isolation, hardening Linux kernels and container platforms, testing hypervisor and hardware security, developing low-level controls in C, Go, or Rust, securing GPU and PCIe interactions, and responding to infrastructure security incidents with forensic capabilities for ephemeral containers.

Build and mature Headway’s infrastructure security program across AWS and application platforms. Partner with Product and Infrastructure teams on secure system design, security reviews, platform guardrails, vulnerability remediation, and continuous infrastructure improvement. Support incident response and security operations while advancing AI-native cloud security practices. The role requires strong technical depth, cross-functional collaboration, and the ability to establish secure-by-default engineering practices in an ambiguous, fast-paced environment.

Lead cryptographic security assessments of protocols, libraries, applications, and high-assurance systems. Analyze advanced cryptographic constructions, identify design and implementation weaknesses, validate exploitability, and recommend remediation. Build testing and analysis tools, manage client delivery, write precise technical reports, mentor engineers, contribute to methodologies and services, and support open-source research and technical publications.

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.

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.

Design and build reproducible enterprise security environments across Azure, AWS, GCP, on-premises, and third-party systems. Develop infrastructure automation, telemetry, identity integrations, AI agent interfaces, and isolated environments for reinforcement learning and security evaluation. Own platform capabilities from architecture through operations, troubleshoot cross-stack failures, collaborate with security researchers and AI engineers, and mentor other engineers.

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.

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.

Leads end-to-end development of security data pipelines, APIs, services, and endpoint protection platforms. Architects scalable, reliable, and hardened cloud security infrastructure; creates design documentation, monitoring, alerting, and vulnerability defenses. Collaborates with security, infrastructure, and engineering teams, supports on-call operations, mentors engineers, and communicates technical strategies to executives and customers. The role also develops automated systems for threat intelligence, security reporting, and intrusion prevention across public and private cloud environments.

Conduct vulnerability research across operating systems, cloud platforms, and virtualization technologies through design and code review, fuzzing, variant analysis, and reverse engineering. Develop platform mitigations, security tooling, detection capabilities, and systemic protections. Partner with engineering teams to improve secure development practices, lead complex security initiatives, track emerging attack techniques, and mentor peers.

Build and lead development of a scalable AI security platform, including foundational services, APIs, libraries, SDKs, and guardrails for AI-powered security capabilities. Design secure, reliable distributed systems with identity, authentication, authorization, encryption, and data protection controls. Partner across security and engineering teams, improve platform performance and developer experience, and guide the architecture and technical direction of the platform.

Design and develop security frameworks for Aurora’s autonomous vehicle platform and cloud services. Lead vehicle security implementation, architecture reviews, threat modeling, code reviews, security releases, and integration with partner teams and OEMs. Write production-quality C++ and Golang, mentor engineers, translate requirements into products, and apply cryptographic, infrastructure, network, embedded, and hardware security practices.

Leads SoFi’s Offensive Security function, unifying penetration testing and red teaming. Owns strategy, staffing, tooling, metrics, vendor relationships, regulatory engagement, and execution quality. Builds AI-assisted offensive security capabilities for reconnaissance, exploit development, attack-path analysis, testing, and reporting. Personally contributes to network, application, cloud, mobile, AI, and adversary-emulation engagements while hiring, coaching, and developing the team and partnering with engineering, risk, vulnerability management, and incident response.

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.

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.

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.

Provides security architecture and advisory guidance for large-scale cloud infrastructure and foundational services. Conducts threat modeling, security design reviews, risk assessments, and vulnerability mitigation throughout the software development lifecycle. Partners with engineering and product teams to implement secure designs, prioritize risk-based initiatives, and improve security roadmaps. Applies expertise in cloud security, identity and access management, network security, secure development practices, and infrastructure protection while influencing stakeholders without direct authority.

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.