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 14, 2026. We may earn a commission when you click through.

If you're looking to step up your security game in finance, this role could be a good fit, but prepare for intense demands.

✓ Great opportunity for professional growth ✓ Chance to work with multiple teams ✓ Impactful role in enhancing security measures

Senior Application Security Engineer

Brex

Updated 35 minutes ago

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Seattle

If you're looking to step up your security game in finance, this role could be a good fit, but prepare for intense demands.

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 that aims to simplify business finance through innovative solutions and services.

Key Highlights

✓ Collaborate with Security Operations and IT teams
✓ Focus on identifying and responding to security vulnerabilities
✓ Engage with various departments within the organization
✓ Work in a dynamic financial tech environment

💡 Honest Take: This position offers a solid chance to work in a growing field, but expect a high-pressure environment with tight deadlines.

Pros

✓ Great opportunity for professional growth
✓ Chance to work with multiple teams
✓ Impactful role in enhancing security measures

Cons

✗ High-pressure work environment
✗ Potentially long hours
✗ Limited remote flexibility

Best For: This is for those who thrive under pressure and have a solid background in application security.

Watch Out: Be ready for a fast-paced environment that may require long hours and quick turnarounds on projects.

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What Customers Say

Employees appreciate the growth opportunities but often cite the demanding workload as a challenge.

Expert Review

Joining Brex as a Senior Application Security Engineer means diving into a challenging role that demands expertise in security vulnerabilities. Your focus will be on collaborating across departments such as Security Operations and IT Infrastructure, which is essential for a comprehensive security posture.

The company places a strong emphasis on innovation, making it a prime environment for professionals looking to enhance their skills. However, be prepared for a high-pressure atmosphere, where deadlines can become tight. This isn’t a 9-to-5 gig; expect to put in extra hours when necessary.

While the collaboration with multiple teams offers a wealth of experience, it can also lead to an overwhelming workload at times. If you can manage the stress and navigate the complexities of a fintech environment, this role could be a significant career booster.

For more insights on the position and company culture, check Brex’s official page here.