Top Cyber Security Jobs in Seattle, WA

Principal Security Engineer role at Coupang. The posting contains template placeholders and does not specify responsibilities, qualifications, required technologies, compensation amounts, travel, or security clearance details. Applicants must complete the Internal Transfer Request Form and apply using their Coupang email address.

Own and improve Onebrief’s corporate security stack across endpoints, identity, SaaS, browsers, Zero Trust, EDR, SIEM, and MDM. Establish secure configuration baselines, detect and remediate drift, integrate telemetry, and build API-driven or infrastructure-as-code automation. Translate CMMC 2.0 and NIST-aligned requirements into continuously validated technical controls and reliable audit evidence. Partner with Corporate IT, Security Operations, GRC, and application owners to strengthen security posture and reduce manual compliance work.

Support Robinhood’s Offensive Security team by testing AI services, models, pipelines, cloud and Kubernetes environments, macOS systems, and smart contracts. The intern will identify and exploit vulnerabilities, build security infrastructure and tooling, and contribute to the maturity of the company’s offensive security program. The role requires in-person attendance at least three days per week in Bellevue or Menlo Park.

Designs, implements, and maintains secure network infrastructure for Lightning AI’s production and AI environments. Responsibilities include firewall, VPN, IDS/IPS, segmentation, vulnerability assessment, penetration testing, SIEM monitoring, incident response, compliance documentation, access controls, and security automation. The role partners with infrastructure and engineering teams to mitigate threats and optimize security controls.

Lead the strategy, architecture, and development of Uber’s enterprise endpoint security platform across macOS, Windows, and Linux. Drive vulnerability management, application security, scalable defense automation, and AI-enabled security operations. Establish technical direction, mentor engineers, promote engineering excellence, and collaborate across IT, product, and operations teams to improve security posture at cloud scale.

Architect and scale global network security systems for bot detection, bot mitigation, and DDoS defense. Build distributed backend systems, ML-driven threat defense pipelines, feature stores, and real-time streaming infrastructure. Lead technical strategy, vendor integrations, architecture reviews, security KPI development, experimentation, and cross-functional initiatives while mentoring engineers.

Lead technical security diligence, integration, and operational security for acquired companies and subsidiaries. Assess cyber maturity, identify risks, deploy security tooling, build automation, normalize telemetry, and improve security visibility across cloud, on-premises, identity, endpoint, SaaS, and engineering environments. Support incident response, containment, remediation, and recovery while developing reusable security playbooks and frameworks. Communicate technical risks to executives and collaborate with security, IT, legal, corporate development, engineering, and business stakeholders.

Lead architecture and evolution of an enterprise vulnerability management platform. Design risk-based vulnerability management systems, automate remediation, integrate security scanning into development and infrastructure workflows, and apply AI/ML to vulnerability triage and remediation. Establish governance, analyze complex vulnerabilities, guide risk decisions, mentor engineers, and collaborate across IT, product, compliance, and operations teams.

Analyze, debug, and secure diverse codebases; implement features; refactor legacy software; conduct audits and penetration tests; optimize backend performance; and document findings to improve AI training datasets.

Build a scalable AI security platform, foundational services, APIs, SDKs, and guardrails for AI-powered security agents. Design secure, reliable distributed systems incorporating identity, authentication, authorization, encryption, and data protection. Partner with security and engineering teams to deliver reusable platform capabilities, improve performance and developer experience, and shape the platform’s technical architecture. The role requires hands-on software engineering experience with AI platforms, cloud-native infrastructure, and large-scale systems.

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.

Secure Windows products and devices through offensive security research, code and design reviews, penetration testing, vulnerability discovery, fuzzing, and mitigation development. Build reusable security review tools, identify vulnerabilities in operating system features and native applications, collaborate with Windows engineering teams on durable defenses, engage security researchers, and communicate the business value of security investments.

Leads technical security sales engagements through demonstrations, proofs of concept, hackathons, architecture workshops, and customer consultations. Designs secure, scalable cloud and hybrid architectures, resolves technical blockers, and advises customers on Microsoft Security solutions, including Defender and Sentinel. Develops security posture recommendations, supports XDR, zero trust, cloud security, and AI adoption strategies, while influencing technical decisions and representing Microsoft in developer communities.

Designs, develops, deploys, and supports enterprise security automations, custom tools, integrations, and workflows. Responsibilities include Python-based application and API development, vulnerability enrichment, incident response automation, IAM administration, Linux and Docker platform support, and administration of SIEM, SOAR, endpoint, cloud, network, and other security technologies. The role also troubleshoots integrations, monitors operational health, supports security teams, and maintains resilient, secure configurations across enterprise systems.

Provides pre-sales technical support and technical account management for Vectra’s cybersecurity platform. Leads customer discovery, product demonstrations, proofs of concept, technology reviews, integrations, and security architecture discussions. Builds technical relationships with customers and channel partners, supports sales teams, collaborates on deployments and product projects, and maintains expertise in security technologies, networking, cloud security, attacker progression, incident response, and competitive offerings. Regional travel is required as needed.

Leads regional enterprise security sales by serving as a cloud security expert, shaping opportunities, advising account teams, managing executive relationships, and orchestrating technical teams and partners. Conducts architecture reviews, demos, proof-of-concepts, pilots, ROI/TCO analyses, and consultative engagements to promote Microsoft security solutions, Zero Trust adoption, and customer business outcomes.

Translates compliance guidelines into business requirements, technical specifications, and security frameworks. Collaborates with internal teams, assessors, sales, project managers, support, engineering, and customers to understand web-scale systems, meet security obligations, integrate solutions, mitigate risks, and support go-live activities. Provides guidance on security controls, DDoS mitigation, network monitoring, incident escalation, threat detection, and security documentation.

Develops and operates enterprise-scale endpoint security software, automation, and integrations. Responsibilities include Python-based automation, endpoint protection, threat modeling, vendor evaluation, security tool integrations, detection and response workflows, CI/CD, infrastructure-as-code, policy enforcement, compliance, documentation, and incident remediation. The role partners with security engineers, product managers, and telemetry teams to improve endpoint security across more than 10,000 systems.

Own and advance cybersecurity for satellites, flight software, ground systems, mission networks, communication links, and AWS infrastructure. Responsibilities include security architecture, threat modeling, vulnerability management, incident response, IAM, SIEM detection engineering, network defense, cloud security, DLP, security assessments, awareness training, and compliance with CMMC Level 2, NIST 800-171, and ITAR/EAR requirements. The role collaborates with aerospace, software, systems, and compliance teams and requires expertise in mission-system security.

Designs and advances security architecture for Microsoft’s enterprise productivity environment. The role assesses evolving risk, analyzes systems and telemetry, develops reusable security patterns and tooling, partners with engineering teams on deployment, communicates risk and tradeoffs, and establishes priorities and roadmaps amid incomplete information.

Leads OT/ICS and enterprise cybersecurity architecture for a federal critical-infrastructure modernization program. Responsibilities include requirements development, NERC CIP traceability, market research, RFI and vendor evaluation, lab testing, alternatives analysis, product recommendations, and executive briefings. The role bridges utility operational technology and IT security, covering access control, monitoring, asset management, vulnerability management, SCADA environments, and industrial systems. It is fully remote in the U.S. with up to 25% domestic travel and requires Public Trust eligibility.

Secure Wiz’s products, CI/CD systems, and production cloud infrastructure through threat modeling, security reviews, vulnerability management, detection and response, cloud and Kubernetes security baselines, policy-as-code, and automation. Partner with engineering, DevOps, operations, and Federal teams to implement scalable security controls, remediate risks, support FedRAMP requirements, and promote secure-by-design development practices.

Secure Windows products and devices through security design and code reviews, penetration testing, vulnerability research, fuzzing, and mitigation development. Build reusable security-review tools, identify vulnerabilities in operating-system features and native applications, investigate attack vectors, and collaborate with Windows engineering teams to implement scalable defenses. The role also involves engaging with external security researchers and communicating the business value of security investments.

As an Information Security Engineer, you'll protect Palantir's infrastructure by detecting and combating security threats, developing defensive strategies, and investigating security events.

Lead security engineering across AI systems, cloud infrastructure, product security, GRC automation, GitHub controls, and compliance workflows. Develop AI-specific threat models and guardrails, automate security checks and evidence collection, strengthen AWS and GCP environments, manage CSPM tooling, and secure software supply chains. Partner with Engineering, Product, Legal, IT, and GRC to establish security programs and practical controls for Jasper’s AI platforms.