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We’re backed by Sequoia Capital, TCV, Madrone Partners and Jackson Square Ventures, and we’re expanding in order to exceed the needs of our growing community of global athletes. With over 200 million athletes in more than 185 countries, it’s more than tracking workouts—it’s where people make progress together, from new habits to new personal bests.

Strava

Senior Security Engineer II

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Ideal candidates have/are: 6+ years of software engineering experience building complex infrastructure or distributed systems, with deep experience in cloud and platform security, identity and access, Kubernetes, or related infrastructure security domains. As a senior software engineer and technical leader, you will partner across Platform Engineering to turn complex security requirements into durable, automated systems that scale with the platform.

Groq

Sr. Staff Platform Security Engineer, Cloud Infrastructure

Offensive security certifications such as GIAC Exploit Researcher and Advanced Penetration Tester (GXPN), Offensive Security Certified Professional (OSCP), Offensive Security Experienced Penetration Tester (OSEP), Offensive Security Web Expert (OSWE), Certified Red Team Operator (CRTO), or Certified Red Team Lead (CRTL). We are looking for an Offensive Security Engineer to join our Red Team, which simulates real attackers across Salesforce products, platforms, and enterprise environments.

YEAR

Salesforce Inc

Offensive Security Engineer - Red Team

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In addition to contributing to the security architectural strategy, the team is involved in architecture reviews, reviewing and proposing threat models, security code reviews, and release-security for Aurora’s products. Aurora expects commitment to our safety policies from every employee, and seeks candidates who take an active responsibility, can contribute to building an atmosphere of trust, and invest in the organization’s long-term success by prioritizing working safely, no matter what.

Aurora

Staff Security Software Engineer

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Nice to Have Hands-on securing LLM or agentic systems: prompt injection, insecure tool use, excessive agency and permissions, sandboxing, and handling model output as untrusted input. That makes authorization, tenant isolation, and the blast radius of a single agent action product design questions, and it puts product security on the critical path of every enterprise deal we close.

BackOps-AI

Product Security Engineer

Practical security learning: Participation in CTFs, security research, open-source contributions, or labs such as PortSwigger Web Security Academy, picoCTF, or Hack The Box. Own a scoped security engineering project, from understanding the problem and exploring approaches to building, testing, and documenting the solution, with guidance from a senior engineer.

Atlassian Corp

Security Engineer Intern, 2027 Summer U.S.

Design, build, and operate core CIAM backend services that support customer registration, authentication, authorization, account lifecycle, and profile management for B2C and B2B platforms. This role is a hands-on engineering position inside Information Security, focused on designing and shipping core CIAM capabilities that protect customers and support growth.

Affirm Inc

Staff CIAM Security Engineer

Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. You’re comfortable designing APIs, integrating with authentication or identity frameworks, and thoughtfully using AI-assisted development tools to build, test, and ship high-quality code faster without lowering the quality bar.

Sierra

Software Engineer, Security

4+ years of experience as a software engineer with significant time spent building security-related tools, platforms, or automations, or in a security engineering role with strong software development responsibilities. This role focuses on engineering security tools and internal AI-driven agents that improve detection and response, vulnerability management, and the overall security posture of our products and infrastructure.

Perplexity

Member of Technical Staff (Software Engineer, Security)

Software Engineer - Security

Security & identity depth (Staff bar): Strong applied security engineering — workload identity (SPIFFE/SPIRE, Workload Identity Federation), service mesh mTLS (Istio), OAuth 2.0 / OIDC, token exchange, JIT/short-lived scoped credentials, secrets/KMS envelope encryption, least-privilege and zero-trust patterns, and threat modeling for adversarial workloads (confused-deputy, prompt injection, data exfiltration). Design, build, and operate the multi-tenant control plane and per-user runtime on private GKE — the Kubernetes operators (CRDs/controller-runtime), Helm charts, gVisor-sandboxed pods, and per-user isolation primitives (KSA/GSA, Workload Identity, NetworkPolicy, per-user workspaces) that reconcile one user into a fully wired, isolated environment.

Felix Technologies

Staff Platform Engineer (Runtime & Security)

Our team is looking for an experienced, hands-on security practitioner, who will drive the adoption of modern security processes and tooling, with focus on supporting our detection and incident response capabilities. The Security Team is responsible for providing key security capabilities covering application, cloud and enterprise security, incident response, detection and GRC.

ClickHouse

Incident Response Security Engineer

You are the engineer who makes it work in practice: implementing and evidencing controls, keeping the GRC platform accurate, preparing what auditors and customers ask for, and chasing the details that decide whether an audit goes well. We are working toward ISO 27001 certification and SOC 2 Type II attestation across a company that is scaling quickly, operating multi-tenant infrastructure in several countries, and deploying into partner data centers.

Volta

Security Engineer, Compliance Focus

Relevant certifications such as PCNSE (Palo Alto Networks Certified Network Security Engineer) are desirable. Responsibilities: Design, implement, and manage robust network security infrastructure with a focus on Palo Alto technologies.

Globalxperts Inc

Network Security- Palo Alto

We are seeking a Senior Network Security Engineer to leverage their extensive expertise in network security and Next Generation Firewall (NGFW) technologies to maximize product potential for customers and partners. Most recently, we were recognized Stevie Employer of the Year 2025, SIA Best Staffing Firm to work for 2025, Inc 5000 Best Workspaces in US (2025 & 2024) and Glassdoor's Best Places to Work (2023 & 2022)!

HOUR

Akraya Inc.

Customer Success Engineer : 26-01797

HaleyMarketing

You'll embed with customers to understand their security challenges, build custom integrations on top of depthfirst's platform, and partner closely with our product team to generalize solutions. Translate customer problems into solutions: build custom integrations, data pipelines, and workflows that connect depthfirst with existing security tools.

DepthFirst

Security Product Engineer

We came to these beliefs the hard way — after years of building infrastructure and responding to incidents with tools that offered plenty of bells and whistles, but no clear answers when it counted most. Sazabi gives teams a single place to ask questions about their production systems in plain language, automatically visualize what's happening, and get to the root cause 10x faster.

Sazabi

Security Engineer

Improve security coverage and signal quality by building and tuning the automated tooling that catches issues early (SAST, DAST, SCA, secrets scanning, dependency and supply-chain controls, and CI/CD security gates) and by partnering with engineering to make findings reliable, actionable, and low-friction to fix. Build a security program capable of withstanding sophisticated adversaries, including by tackling the novel application-security challenges of agentic AI (prompt injection, unsafe tool use, data exfiltration, and abuse of autonomous actions) and by using Serval's own agents to solve frontier security problems.

Serval

Security Engineer, Application

Lead security incident response coordination across all teams (Cloud, AppSec, Enterprise, AI Security) when AI infrastructure or models are compromised, conducting forensic investigations on training pipeline attacks and model manipulation attempts while drafting clear incident communications for engineering and executive leadership. Collaborate cross-functionally as the operational security partner for all teams - translating AI Security's threat research into production detections, monitoring Cloud Infrastructure's GPU clusters for threats, detecting customer-impacting incidents for Software Security Engineering, and enabling responsible AI development through security guardrails.

Writer

Security Engineer, Detection And Response

When you join the Latitude team, you'll work alongside leading experts across machine learning and robotics, cloud platforms, mapping, sensors and compute systems, test operations, systems and safety engineering - all dedicated to redefining the relationship between people and their vehicles for millions of customers. Review the existing and new deployments and architecture designs looking for design flaws, security improvements, and advocate for stronger security controls that meet functional and operational needs.

Security Engineer Jobs in San Mateo, CA

Senior Security Engineer II Strava

Sr. Staff Platform Security Engineer, Cloud Infrastructure Groq

Offensive Security Engineer - Red Team Salesforce Inc

Staff Security Software Engineer Aurora

Product Security Engineer BackOps-AI

Security Engineer Intern, 2027 Summer U.S. Atlassian Corp

Staff CIAM Security Engineer Affirm Inc

Software Engineer, Security Sierra

Member of Technical Staff (Software Engineer, Security) Perplexity

Software Engineer - Security Perplexity

Staff Platform Engineer (Runtime & Security) Felix Technologies

Incident Response Security Engineer ClickHouse

Security Engineer, Compliance Focus Volta

Network Security- Palo Alto Globalxperts Inc

Customer Success Engineer : 26-01797 Akraya Inc.

Security Product Engineer DepthFirst

Security Engineer Sazabi

Security Engineer, Application Serval

Security Engineer, Detection And Response Writer

Senior Cyber Security Engineer - Identity and Device Management, & Networking Security Latitude AI LLC

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