Senior Application Security Engineer

Brex

Application Security is part of our wider Financial Scale organization, which means you will work closely with Security Operations, GRC, Product Security, Front End Platform, IT Infrastructure teams. As a Senior Application Security Engineer, you...

Last checked on May 15, 2026. We may earn a commission when you click through.

Brex offers a solid role for experienced Application Security Engineers looking to work in finance, but it may not suit those preferring a more relaxed pace.

✓ Strong collaboration with diverse teams ✓ Opportunities for impactful work ✓ Engaging and challenging environment

Senior Application Security Engineer

Brex

Updated 7 minutes ago

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Seattle

Brex offers a solid role for experienced Application Security Engineers looking to work in finance, but it may not suit those preferring a more relaxed pace.

About this role

Brex is a financial technology company that provides credit cards and spend management solutions for businesses.

About the Company

Brex is a financial technology company focused on providing innovative solutions for businesses.

Key Highlights

✓ Collaborate with multiple security teams
✓ Focus on identifying and mitigating security vulnerabilities
✓ Contribute to a secure development lifecycle
✓ Work within a fast-paced financial environment

💡 Honest Take: This position is ideal for seasoned professionals who thrive in collaborative settings and want to make an impact in application security.

Pros

✓ Strong collaboration with diverse teams
✓ Opportunities for impactful work
✓ Engaging and challenging environment

Cons

✗ Fast-paced work may lead to stress
✗ Limited remote work options
✗ High expectations for performance

Best For: Ideal for professionals with a strong background in application security and a desire to work in a collaborative, high-stakes financial setting.

Watch Out: Be prepared for a demanding pace; this is not a typical 9-to-5 job.

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What Customers Say

Employees appreciate the collaborative culture but note the high-pressure work environment.

Expert Review

Brex is positioning itself at the forefront of financial technology, and as a Senior Application Security Engineer, you will be part of that mission. Your role involves identifying and addressing security vulnerabilities, working closely with various teams like Security Operations and IT Infrastructure.

The fast-paced financial environment means you need to be ready for high expectations and a workload that can be intense. While the collaborative nature of the job is a plus, it comes with the pressure of tight deadlines and the need to adapt quickly.

If you thrive in a setting where your contributions directly affect security measures, this job could be a great fit. Plus, you’ll be involved in shaping security policies and practices across the organization. Just be aware that the role demands significant expertise and a proactive approach to problem-solving.

For those who prefer remote work or a slower pace, this might not be the right match. Brex's focus on in-office collaboration limits flexibility, so consider your work-life balance carefully before applying.