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Flexport

Staff Security Engineer – Product Security

Flexport

. Define security architecture for Flexport's products and services .

Posted 11/11/2026full-timeRemote • United StatesLead💰 $148,210 - $270,703 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates extensive experience in product and application security, with a strong focus on security architecture, vulnerability remediation, and mentoring engineering teams. Proficient in building security tools and services, and skilled in identity management and cloud infrastructure.

Highest-signal resume keywords
Product/Application Security ExperienceSecurity Architecture DesignApplication Testing Tools ProficiencyIdentity Management ExperienceIaaS Cloud Infrastructure Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Security ArchitectureWeb Application Security PrinciplesSecurity Tools DevelopmentCode AuditsThreat ModelingAttack Surface AnalysisBug Bounty ManagementVulnerability RemediationMulti-Team Technical InitiativesMentoring Engineers
Soft Skills
LeadershipCollaborationMentoring
Tools & Technologies
Burp SuiteOWASP ZAPCycodeSemgrepSnykKubernetesContainersService-Oriented Architectures
Industry Keywords
Identity FederationSAMLOAuthSCIMIaaS

Tech Stack

Tools & technologies
CloudJavaKotlinKubernetesPythonRubyTypeScriptGo

About the role

Key responsibilities & impact
  • Define security architecture for Flexport's products and services
  • Set secure-by-default patterns and reference implementations
  • Lead security engineering reviews for the highest-risk product features
  • Build and scale the security champions program and product security training
  • Lead domain-specific threat modeling and attack surface analysis across Flexport's product surface
  • Partner with engineering leadership to resolve senior-level design tradeoffs
  • Set standards for triaging, reproducing, and prioritizing bug bounty submissions and internal security reports
  • Handle the hardest or highest-severity security cases
  • Drive remediation of systemic vulnerability classes
  • Own security services and tooling consumed by product teams across global infrastructure
  • Mentor engineers and serve as the authoritative technical voice on product security across engineering leadership

Requirements

What you’ll need
  • Typically 8+ years of experience in product/application security
  • Hands-on experience building security tools and services
  • Track record of designing security architecture that scales across many teams and services
  • Strong grasp of web application security principles
  • Hands-on experience with application testing tools such as Burp Suite, OWASP ZAP, or similar
  • Software development experience building security tools in at least one modern language: Go, Python, Java/Kotlin, TypeScript, Ruby, or similar
  • Track record of leading multi-team technical initiatives and mentoring engineers into senior roles
  • Experience running or scaling a security champions program
  • Identity management and identity federation experience with SAML, OAuth, or SCIM
  • Experience with IaaS cloud infrastructure, Kubernetes, containers, and service-oriented architectures
  • Hands-on experience with bug bounty platforms and SAST tools such as Cycode, Semgrep, Snyk, or similar
  • Experience performing code audits on internal or open-source libraries before production release

Benefits

Comp & perks
  • Bonus
  • Equity
  • Comprehensive medical benefits
  • Dental benefits
  • Flexible time off
  • Latest hardware and software
  • Frontier AI models on day one