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Application Security Engineer

3 hours, 49 minutes ago
Anywhere
Full-time
Mid Level
Application Security Engineer
Cybersecurity
AWS GraphQL gRPC Kotlin Kubernetes Penetration Testing Python
Apply Now
Brex

Brex

Brex is an AI-powered spend platform that offers integrated corporate cards, expenses, travel, and payments in over 100 countries. With a unified platform for corporate cards, expense management, reimbursements, travel, business accounts, and bill pay,...

Diversified Financial Services
1K-5K
Founded 2017
$1800M raised
View All Jobs 21

Description

  • Identify vulnerabilities across common vulnerability classes, document findings clearly, and communicate risk to drive remediation efforts.
  • Participate in penetration testing and design reviews to surface vulnerabilities and insecure designs.
  • Contribute to internal tooling and automation that support SAST and DAST testing of the Brex platform.
  • Collaborate with engineering and product teams to support the design of secure product features.
  • Actively contribute to a culture of security awareness through knowledge sharing and peer learning.
  • Work closely with Security Operations, GRC, Product Security, Front End Platform, and IT Infrastructure teams.
  • Help secure AI-powered and agentic features by identifying attack surfaces introduced by LLM-based systems.
  • Apply emerging AI security best practices to support trustworthy financial products.

Requirements

  • 4+ years of work experience in Application Security or a related role.
  • Demonstrated ability to find and document vulnerabilities in complex systems and communicate business risk clearly.
  • Hands-on experience with secure development activities such as code review, threat modeling, or penetration testing.
  • Experience identifying security risks in AI/ML systems such as prompt injection, model manipulation, or data poisoning.
  • Familiarity with agentic workflows and LLM-powered attack surfaces.
  • Knowledge of Python or scripting languages to automate tasks and build tooling.
  • Strong written and verbal communication skills with a collaborative mindset.
  • Experience with Kotlin, gRPC, GraphQL, or Kubernetes is preferred.
  • Previous experience as a software engineer is preferred.
  • Experience securing distributed systems in AWS and cloud environments is preferred.
  • Experience with web application security reviews is preferred.
  • Contributions to open source, public research, CTFs, blogging, CVEs, presentations, bug bounty, or responsible disclosure programs are preferred.
  • Published AI security research or contributions to AI security frameworks are preferred.

Benefits

  • Expected salary range of $152,000 - $190,000.
  • Equity and other forms of compensation may be provided as part of the total package.
  • Opportunity to work on AI security for a fast-growing financial technology platform.
  • Cross-functional collaboration with security, engineering, and product teams.
  • Access to tools, resources, and support to grow your career.

Interested in this position?

Apply directly on the company website

Apply Now

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