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 17, 2026. We may earn a commission when you click through.

If you're looking for a senior role in a collaborative environment, this could be a good fit; just know it's onsite in Seattle.

✓ Collaborative work environment ✓ Focus on real-world security challenges ✓ Opportunity to work with various teams

Senior Application Security Engineer

Brex

Updated 43 minutes ago

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Seattle

If you're looking for a senior role in a collaborative environment, this could be a good fit; just know it's onsite in Seattle.

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 businesses with credit cards and expense management solutions.

Key Highlights

✓ Work closely with Security Operations and IT teams
✓ Focus on identifying and responding to security vulnerabilities
✓ Join a dynamic financial scale organization

💡 Honest Take: This position is ideal for experienced engineers who want to make an impact in application security, but it may not suit those seeking remote flexibility.

Pros

✓ Collaborative work environment
✓ Focus on real-world security challenges
✓ Opportunity to work with various teams

Cons

✗ No remote work option
✗ Onsite position may limit flexibility
✗ High responsibility in a demanding field

Best For: It's for those who thrive in fast-paced environments and enjoy working collaboratively across departments.

Watch Out: Be prepared for a demanding workload and the need to stay current with rapidly evolving security threats.

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What Customers Say

Employees appreciate the collaborative culture but note the demanding nature of the work.

Expert Review

In the realm of application security, Brex offers a solid platform for experienced engineers. This role demands a high level of expertise and a proactive approach to identifying vulnerabilities. Working in tandem with various teams like Security Operations and IT, you'll be at the forefront of protecting company data.

The challenge here is significant; engineers will need to adapt quickly to new security threats and collaborate effectively with multiple teams. Being onsite in Seattle means you'll miss out on remote flexibility, which could limit your work-life balance.

Brex's focus on financial technology means you'll be dealing with sensitive data, increasing the stakes for your work. This is a great fit if you're passionate about application security and can handle the pressure of a high-responsibility environment.

According to Brex’s job posting, the company values teamwork, so expect to engage with various departments frequently. If you’re looking for a position that is not just about coding but also about collaboration, this could be a strong choice for your career growth.