Member of Technical Staff (Software Engineer, Cybersecurity Products)

Perplexity • Belgrade, California

2d • $220,000 - $405,000

About The Position

Perplexity is building cybersecurity products in which agents perform security work rather than merely assist with it. The security team currently uses agents internally to find vulnerabilities, test defenses, secure cloud environments, and respond to threats. The company is turning this work into customer products across areas including application security, offensive testing, cloud security, and detection and response.

The Software Engineer will build these products end to end, including security logic, agent workflows, integrations, and customer-facing product surfaces. The role involves shipping quickly to design partners and enterprise customers and working directly with internal security engineers so products are grounded in real codebases, environments, and attacker behavior.

Requirements

• At least 4 years of experience as a software engineer building production systems, including meaningful experience in security products, security data platforms, or security engineering with substantial software development.
• Proficiency in at least one major programming language, such as Python, Go, TypeScript, or Rust.
• Experience owning production services end to end.
• Hands-on depth in at least one security domain: application security, penetration testing or offensive security, cloud security, or detection and response.
• Experience integrating with security- or developer-relevant systems such as source control, CI/CD, cloud provider APIs, identity providers, scanners, or SIEMs.
• Familiarity with cloud infrastructure and building secure, multi-tenant SaaS.
• Comfort working directly with customers and shipping pragmatic improvements quickly in an ambiguous, early-stage product area.

Nice To Haves

• Experience building LLM-powered agents, evaluation frameworks, or tool-using automation for security or other high-stakes domains.
• Experience at a security product company in AppSec, penetration testing, cloud security, or detection and response, or on an internal security platform at scale.
• AWS experience is preferred.

Responsibilities

• Build zero-to-one security products across application security, penetration testing and offensive security, cloud security, and detection and response.
• Build agents that review code for vulnerabilities, test applications and infrastructure, assess cloud configurations, investigate threats, validate findings, and recommend or apply fixes.
• Build supporting systems, including multi-tenant services, data pipelines, and secure execution environments for customer code, cloud accounts, and telemetry.
• Integrate with customers’ existing source control, CI/CD, cloud provider, identity provider, security, ticketing, and chat tools.
• Build customer-facing APIs, dashboards, onboarding, and workflows suited to security and engineering teams.
• Ensure strong tenant isolation, least privilege, safe handling of customer secrets and data, and tight controls on agents acting in customer environments.
• Define and use quality measures such as finding accuracy, false positive rate, exploitability, time to fix, and cost to improve the product.
• Work directly with design partners and customers and help determine which security problems to build products for next.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed