Top Security Engineer Jobs in Seattle, WA

Design, implement, and improve security controls for operational technology (OT) networks in datacenter environments. Identify and remediate risks, create inventories and risk registers, coordinate penetration testing and vulnerability mitigation, embed security into OT systems, develop recovery and response playbooks, and present technical findings to stakeholders while partnering with engineering and third parties to reduce risk.

The Security Engineer will enhance corporate security controls, develop policies, manage AI security, and assess risks while ensuring secure employee operations.

Build and own detection tooling and logging/alerting systems, create and tune analytics for threat detection, investigate and triage incidents (on-call), drive incident response across teams, and help define and execute detection and response strategy with a detection-as-code mindset.

Build and maintain product security across the SDLC: threat modeling, design and code reviews, pentesting, tooling and automation, bug bounty management, and AI-based security solutions to enable secure, fast product development.

As a Staff Security Engineer, you'll lead the technical strategy for Vulnerability Management, oversee automation initiatives, mentor engineers, and collaborate with teams to enhance security processes and responses.

Lead enterprise security architecture across endpoint, identity, network, cloud, and data. Define controls, review major initiatives, automate control deployment (IaC/PaC), mentor engineers, and drive zero-trust and cloud security strategy at scale.

Design, implement, and scale security controls across infrastructure, applications, identity, and cloud. Perform security assessments, threat modeling, code reviews, incident response, and root cause analysis. Build automation and tooling for compliance, observability, and governance. Partner with product and engineering teams and help define security standards and documentation.

Own and drive product security for the MongoDB Database Server: lead fuzzing, threat modeling, secrets/container security efforts; perform security assessments, POCs, code reviews, and remediation for low-level memory issues; partner with engineering to design controls and educate teams.

Role focuses on ensuring data center security and resiliency, implementing controls and controls compliance, and protecting export-controlled information. The posting emphasizes eligibility to access export-controlled data and does not list specific technical duties or tools.

Own and architect Forward's security technology stack across AppSec, SecOps, and GRC. Design integrations with Engineering/IT, lead tool evaluations and PoCs, automate controls with infrastructure-as-code and detection-as-code, build centralized logging/SIEM and identity governance, align architecture to security frameworks, mentor security engineers, and support incident response and remediation.

Serve as a senior technical authority on PSIRT: lead deep-dive vulnerability investigations, coordinate fixes across engineering/product/release teams, manage CVE disclosure, author postmortems, improve SDLC and CI/CD practices, develop proof-of-concept exploits, and communicate risk during significant security incidents.

Design and implement multitenant workload and network isolation for bare-metal and virtualized GPU infrastructure. Harden Linux kernel and container runtimes, perform threat modeling and penetration testing, write low-level security code (C/Go/Rust), mitigate GPU and PCIe security risks, and lead incident response and forensic work for ephemeral container environments.

Secure customer-facing products, APIs, and internal services through threat modeling, architecture and code reviews. Remediate vulnerabilities by coding fixes in Python/Go/JS/TS. Build and manage SAST/DAST/SCA security pipelines in CI/CD. Configure WAFs, API gateways, and bot protection. Provide secure coding guidance, run bug bounty triage, and support compliance (SOC 2, ISO 27001, GDPR).

The Staff Security Engineer will lead technical security initiatives, own architectural security decisions, mentor engineers, and align teams on security strategy while ensuring system integrity and compliance.

Design, implement, and operate cloud security architecture across multi-account AWS, Kubernetes, and Terraform-managed infrastructure. Build detection, protection, and automated remediation workflows; define zero-trust access and identity solutions; harden Kubernetes and cloud workloads; shift security left in CI/CD; partner with infrastructure teams and mentor engineers to embed security guardrails.

Senior individual-contributor on Detection & Response leading detection engineering, incident response, architecture for logging/alerting, mentoring, designing AI-assisted workflows, and driving multi-year security roadmaps to reduce risk.

Lead architecture and scaling of an automated, AI-driven vulnerability detection and remediation platform across cloud, containers, and applications. Correlate SAST/DAST/SCA findings, implement AI-assisted triage, run red/purple team validation, and build automated remediation pipelines integrated into CI/CD for continuous compliance and risk reduction.

The Security Engineer will manage Liftoff's SIEM, lead the adoption of AI-augmented SOC tools, triage alerts, and improve incident response processes while collaborating on various security functions.

Design, deploy, and maintain cloud and edge security across AWS/GCP/Azure including Cloudflare WAF and SASE. Implement zero-trust access, CSPM, IaC security, threat modeling, incident runbooks, detection tuning, and mentor junior engineers while participating in on-call rotation.

Senior technical security engineer responsible for cloud infrastructure security, detection engineering, incident response, application and product security, vulnerability management, penetration test ownership, and security automation. Partners with platform, logistics, and IT teams, manages an application security contractor, and builds tooling to raise the security posture across AWS, IaC, edge, and container environments.

Senior security engineer responsible for developing automation and tooling, building and deploying security solutions, conducting incident response and proactive threat hunting, supporting investigations through data analysis, and advising development teams. Must document solutions, participate in agile teams, mentor juniors, and continuously research evolving security threats.

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

As an Insider Threat Detection Engineer, you will protect data and assets, develop detection strategies, investigate security events, and enhance network defenses in a critical team role.

Lead application security for products by performing threat modeling, manual secure code reviews, and penetration testing. Collaborate with engineers to remediate defects, build AppSec automation and tooling, secure cloud/containerized applications, and drive bug-bounty responses to harden platform security.

Perform deep security analysis of endpoint products and sensors: threat modeling, source-code review, exploit-style testing (including kernel components), reproduce/validate bug bounty findings, collaborate with developers to fix vulnerabilities, and build tooling/automation to improve security workflows.