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 16, 2026. We may earn a commission when you click through.

If you're looking to deepen your expertise in application security within a collaborative environment, this is a solid pick.

✓ Collaborative work environment ✓ Focus on real security challenges ✓ Hands-on role with impact

Senior Application Security Engineer

Brex

Updated 1 hour ago

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Seattle

If you're looking to deepen your expertise in application security within a collaborative environment, this is a solid pick.

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 provides corporate cards and expense management solutions for businesses.

Key Highlights

✓ Collaborate with various security teams
✓ Focus on application security challenges
✓ Be part of a financial scale organization
✓ Work in a hands-on security role
✓ Contribute to improving security practices

💡 Honest Take: This position requires a strong foundation in application security, making it better suited for seasoned professionals.

Pros

✓ Collaborative work environment
✓ Focus on real security challenges
✓ Hands-on role with impact
✓ Engagement with multiple teams

Cons

✗ Not remote — based in Seattle
✗ High expectations for senior-level skills
✗ Requires strong collaboration skills
✗ Potential for high-pressure situations

Best For: This is for individuals with a strong background in application security and a passion for improving security measures.

Watch Out: Be prepared for a steep learning curve and the need to quickly adapt to various security demands.

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What Customers Say

Workers appreciate the collaborative atmosphere but note the high expectations and pressure associated with the role.

Expert Review

The Senior Application Security Engineer position at Brex offers a unique chance to work at the intersection of finance and cybersecurity. This isn't just another tech gig; you’ll be directly addressing security vulnerabilities and collaborating with multiple internal teams. The emphasis on application security means you’ll need a solid understanding of current security protocols and practices.

For those considering this role, it’s important to note that it's based in Seattle, which might limit options for remote work. The company is looking for seasoned professionals, so it's not ideal for entry-level candidates. Expect to engage with various teams, including Security Operations and IT Infrastructure, which can be both rewarding and challenging.

Overall, the role promises a hands-on experience that can significantly impact the company’s security posture. However, it comes with high expectations and the pressure of working in a fast-paced environment. According to Brex's job listing, candidates should be prepared to tackle complex security scenarios head-on. If you’re up for the challenge, this could be a great fit.