Top Security Engineer Jobs in Seattle, WA

Own application-layer risk detection and remediation across consumer flows, GraphQL APIs, and internal tools. Build and operate AppSec tooling, manage HackerOne, run threat modeling and security design reviews, create CI guardrails, automate vulnerability triage with AI agents, and lead offensive testing and red team exercises to harden authentication, authorization, and cloud/container security.

Design, build, and operationalize ML-based security and anomaly detection across large-scale telemetry. Own feature engineering, model training, evaluation, deployment, drift monitoring, and SOC feedback loops. Partner with SOC, threat intel, and fraud teams to reduce noise and improve detection coverage, and mentor engineers on applied ML and detection operations.

Assess and harden software supply chain security by performing technical assessments, designing and implementing security controls and monitoring for build pipelines, investigating systems for vulnerabilities, creating tooling to address gaps, and leading cross-team projects to improve CrowdStrike's product security posture.

Partner with engineering, compliance, and security teams to embed application security into the SDLC: triage static/SCA alerts, advise on OWASP Top 10 remediation, maintain developer playbooks and training, track security metrics and evidence for audits, and help shape AI governance and GenAI-safe workflows.

Own and evolve the application security program: embed secure SDLC practices, partner with engineering on design and code reviews, manage AppSec tooling (SAST/DAST/ASM/WAF/mobile), harden AWS deployments, integrate security into CI/CD, and lead vulnerability investigation and remediation efforts.

As a Security Production Engineer, you'll ensure security systems' reliability, develop automation, collaborate on performance optimization, and mentor team members.

Lead detection, response, and digital forensics for security incidents. Monitor alerts, perform technical analysis, act as Incident Commander, build automation and runbooks, mentor engineers, and coordinate cross-team investigations and insider threat work.

Design and build custom security tools, middleware, and automations to integrate Identity, MDM, EDR, SIEM, and SaaS platforms. Implement API-driven data flows, UIs, CI/CD pipelines, SOAR playbooks, and secure deployment practices. Collaborate with Security Ops, IT, and Engineering to translate policies into automated, secure solutions.

Lead architecture and delivery of DigitalOcean's audit logging, SIEM integrations, and unified security visibility platform. Define multi-year roadmap, design high-throughput Go-based telemetry pipelines, ensure compliance-grade immutable audit records, build customer-facing visibility/control planes, and drive org-wide logging standards while mentoring engineers and coordinating cross-team integrations for consistent, high-fidelity security telemetry.

Lead incident response and threat hunting efforts at CoreWeave, owning cybersecurity incidents end-to-end and developing AI-powered tools to enhance defense against threats.

Design, implement, and automate scalable cloud security solutions and baselines across AWS/Azure/GCP. Build guardrails, IAM, detection/monitoring, configuration management, and data protection using IaC (Terraform) and everything-as-code. Collaborate with Product Engineering and security teams, produce technical documentation, and operationalize security tooling.

As a Solutions Architect, engage with customers to architect cloud solutions, optimize workloads, and provide technical leadership while collaborating with engineering teams.

Design and implement scalable, low-latency AI security infrastructure and high-performance networking code in Rust. Collaborate with product and cross-functional teams, debug complex network/system issues, and deliver secure, testable solutions for large-scale cloud security platform.

Lead AppSec efforts across product, platform, and AI features by owning secure SDLC, performing threat modeling and deep code reviews, driving vulnerability management and remediation, building AppSec tooling and automations (including AI-assisted workflows), and enabling engineering teams with secure design guidance and training.

Design and implement AI-powered security agents and tooling across CI/CD, perform threat modeling and manual assessments, find and drive remediation of vulnerabilities, embed security into development workflows, connect telemetry to detection systems, and shape product security strategy and incident response.

Design, implement, and support enterprise physical security systems (video surveillance, access control, sensors, IoT). Consult with clients, develop technical architectures, configure and test systems, troubleshoot hardware/software, manage projects, run design workshops, and support sales and delivery. Travel 25-50% and perform hands-on installations and network-integrated solutions.

Own and build Grow Therapy's data security infrastructure: automated data classification, field-level masking/tokenization, encryption and key management, secure data connectors to AI tooling, and access controls. Define a multi-year vision, implement pipelines and services, and partner across Data, Engineering, and Detection & Response to make secure-by-default the company standard.

Owner of Vannevar's authentication and authorization platform: build tenant-isolated auth systems, self-service user/group/permission admin UI, tooling to visualize and validate access, feature-flag and platform management interfaces, and shared authorization capabilities across products.

Responsible for architecting and developing AI security infrastructure, optimizing performance and scalability of systems, and driving innovation in a collaborative environment.

The Staff Cloud Security Engineer will secure cloud infrastructure for Huntress, focusing on product security, risk management, and compliance for a SaaS platform. Responsibilities include collaborating with DevOps, managing vulnerabilities, threat modeling, and developing incident response strategies.

Design, build, and architect IAM-focused security software, APIs, and automation. Integrate security into CI/CD and cloud-native environments, perform code reviews and threat modeling, monitor security events, support incident response, and collaborate with infra/app teams to embed identity best practices.

Lead and implement security engineering controls across the platform: identify real risks, build secure-by-default libraries and guardrails, enforce least-privilege for services protecting patient data, harden developer machines, and partner with compliance to convert requirements into effective technical controls.

Own and define IAM strategy for corporate and production environments. Migrate Okta to Terraform, design least-privilege access, automate provisioning/deprovisioning and access reviews, build/manage MDM/MAM tooling, partner with platform and engineering teams, and serve as the IAM subject matter expert across Security, IT, and Engineering.

Hands-on Staff Security Engineer to build and operate DevSecOps capabilities: automate security controls, harden AWS/cloud and CI/CD, improve supply-chain security, build detection/response tooling, partner with engineering for secure design, and lead incident response and compliance automation.

The Senior Application Security Engineer ensures the security of systems and data by monitoring vulnerabilities, responding to incidents, and promoting security best practices within the organization.