Brex

FinTech

SeniorApplicationSecurityEngineer

$192–240k Remote FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Application Security Engineer at Brex. Skills: Application Security, Penetration testing, Vulnerability management, AI Security. Identify vulnerabilities. Demonstrate business impact”

Industry & Context.

FinTech
Problems you'll solve

Root cause analysis

What They're Looking For.

Must Have

5+ years work experience, 5+ years Application Security

Nice to Have

Proficiency with Kotlin, Proficiency with gRPC, Proficiency with GraphQL, Proficiency with Kubernetes, Previous software engineer experience, Consultancy experience, Experience securing distributed systems, Experience with AWS, Experience with pentesting agentic features, Experience securing agentic systems, Contributions to technical community, Experience submitting to bug bounty programs, Experience with responsible disclosure programs

What You'll Do.

Identify vulnerabilities

Demonstrate business impact

Articulate risk of vulnerabilities

Perform penetration testing

Perform design reviews

Find insecure designs

Design secure product features

Maintain internal tools

Automate security efforts

Support secure development practices

Build culture of security excellence

Contribute to security excellence

Provide technical leadership

Conduct learning sessions

How You'll Work.

Team & Collaboration

Cross functional; Security Operations; GRC; Product Security; Front End Platform; IT Infrastructure teams; Engineering teams

Communication Scope

Written communication; Verbal communication

Full Job Description

Why join us Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek. Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career. Engineering at Brex Engineering at Brex is about building systems that scale with speed and intention. Our teams span Software, Data, Security, and IT, and operate with high autonomy and deep collaboration. We tackle hard technical problems, own our outcomes, and push for excellence at every level — from architecture to deployment. It’s an environment where engineering is a craft, and builders become leaders. What you’ll do As a Senior Application Security Engineer, you will focus on finding and responding to security vulnerabilities across the Brex platform. In this role, you will perform code reviews, design reviews, penetration testing, and vulnerability management. You will develop and maintain tooling to perform static and dynamic testing of the Brex platform and tooling which supports secure developer workflows. Application Security is part of our wider Financial Scale organization, which means you will work closely with Securit

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