Top Security Engineer Jobs in Seattle, WA

The Senior Product Security Engineer will manage security intelligence across platforms, identify vulnerabilities, improve developer tools, and assist incident response teams, focusing on security and fraud in application design.

As a Senior Offensive Security Engineer, you'll assess Huntress' defenses, execute red team engagements, conduct penetration tests, and enhance security protocols while collaborating with internal teams.

As a Sr. Product Security Engineer, you will focus on network security, identifying gaps, architecting solutions, and leading cross-functional security initiatives.

The Staff Product Security Engineer will enhance security in product development, conduct threat modeling, review code, automate processes, and advise on security requirements.

The Staff Security Engineer will lead technical security design, ensure data protection standards, mentor engineering teams, and improve security infrastructure.

Manage and improve vulnerability management, asset visibility, and cloud security across hybrid and multi-cloud environments. Operate tools (Wiz, Rapid7), maintain asset inventories, triage and track vulnerabilities, coordinate remediation with Engineering/SRE/IT, support incident investigations and on-call rotation, maintain compliance evidence and runbooks, and contribute to program improvements and reporting.

As a Security Engineer, safeguard Runpod's GPU cloud platform, conduct security assessments, implement fixes, and foster a security-first culture with development teams.

The Senior Application Security Engineer oversees application security, works on AI threat modeling, and collaborates with engineers to enhance security infrastructure and compliance with regulations.

As a Principal Security Engineer in Data Security, you will spearhead Upstart's data security program, architect software solutions, partner cross-functionally, and mentor teams while ensuring effective protection of sensitive data.

The Offensive Security Engineer is responsible for penetration testing, threat modeling, and improving security standards while collaborating with engineering teams.

As a Product Security Engineer, you'll develop secure tools for engineering teams, conduct security reviews, and automate security processes to enhance Cedar's healthcare technology 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.

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

Design and implement security controls for identity, access management, and endpoint security. Lead initiatives around zero trust and phishing-resistant MFA.

The Security Engineer will design, build, and enhance security tools and frameworks, analyze security challenges, and contribute to AI/ML security research. Responsibilities include software development, security code review, and technical communication.

Design, build, and maintain security products and infrastructure: real-time detection engines (Flink/Kafka), high-performance APIs (Go/Node.js), streaming analytics, Kubernetes at hyperscale, and petabyte-scale data pipelines. Lead technical designs, collaborate with security teams, and mentor junior engineers.

As a Security Engineer, you will conduct security assessments, develop security tools, perform architecture reviews, and collaborate on advanced security research.

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.

Lead and execute Grow Therapy's multi-year Security Engineering roadmap. Build secure-by-default infrastructure (auth, authZ, logging, egress), drive data security and systematic data tagging, develop org-wide security scorecards, enable automated least-privilege and vulnerability management, and influence AI-native security and security culture across product, platform, and compliance teams.

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.

The Sr. Infrastructure Security Engineer is responsible for protecting patient data, enhancing cloud infrastructure security, and collaborating with engineering teams to implement effective security practices.

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.

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.

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.

As a Senior Software Engineer, you will design and develop security products, build high-performance APIs and microservices, and lead complex security features from conception to production.