Security Engineer, Product Security

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Security Engineer, Product Security in USA new

Flexport
Full time
Email

USA
11/12/2026
Report

San Francisco, CA

Responsibilities

Define security architecture, secure-by-default patterns, and reference implementations for Flexport products and services.
Lead security reviews for high-risk product features and establish review standards across engineering.
Build and scale the security champions program and product security training.
Lead threat modeling and attack surface analysis across the product surface.
Set standards for triaging, reproducing, and prioritizing bug bounty submissions and internal security reports.
Drive remediation of systemic vulnerability classes and handle the highest-severity cases.
Own security services and tooling used by product teams across the global infrastructure.
Mentor security engineers and act as the authoritative product security voice across engineering leadership.

Requirements

Typically 2–5 years of experience in product/application security or software development with a security focus.
Strong understanding of web application security principles and common attack vectors, including the OWASP Top 10.
Proficiency with application testing tools such as Burp Suite, OWASP ZAP, or browser developer tools.
Working knowledge of at least one modern programming language such as Ruby, Java, Kotlin, TypeScript, JavaScript, or Python.
Working knowledge of at least one major cloud provider: AWS, GCP, or Azure.
Ability to participate in a security on-call rotation and contribute across security disciplines.
Preferred experience includes bug bounty platforms, SAST tools such as Cycode, Semgrep, or Snyk, cloud infrastructure security, container technologies, CTFs, open-source security projects, threat modeling frameworks, secure SDLC practices, and developer security training.

Benefits

The role is based in San Francisco with regular office attendance; candidates there or willing to relocate are preferred.
Relocation support is available for the right candidate.
Benefits include bonus, equity, medical, dental, and flexible time off.
Employees receive current hardware and software, including frontier AI models on day one.

Salary: $165k - $202k/yr

Flexport

Our mission is to make global trade so easy that there will be more of it.

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