Software Engineer I, Frontend - Product Security na Brex

Brex is the AI-powered spend platform. We help companies spend with confidence with integrated corporate cards, banking, and global payments, plus intuitive software for travel and expenses. Tens of thousands of companies from startups to enterprises — including DoorDash, Flexport, and Compass — use Brex to proactively control spend, reduce costs, and increase efficiency on a global scale.

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 Frontend Software Engineer on our Product Security team, you will work across the entire Brex stack to build solutions that manage user lifecycles and integrate with HRIS systems—critical for maintaining enterprise onboarding processes and supporting a large, high-performing engineering team.

Responsibilities

• Work with engineers across the company to build new frontend features and products end-to-end
• Design and implement solutions to improve our customer’s experiences and drive product adoption.
• Own problems end-to-end, thinking through everything from user experience, data models, scalability, operability and ongoing metrics.
• Tune and polish features to a high-degree of excellence.

Requirements

• 2+ years of professional full-time experience with a focus on frontend development with React alongside designing, developing, and deploying full-stack products
• Experience developing software for the Web platform, including cross-browser compatibility
• Experience architecting, developing, and testing client-side code end to end
• Experience with modern tools like ES6+, React, GraphQL, & Webpack
• Uphold our high engineering standards and willingness to learn
• Strong written and verbal English communication and interpersonal abilities
• This role will be based in our Sao Paulo office. You must be willing to work in the office at least 2 days per week on Wednesday and Thursday, starting the week of September 1st, 2025, when we open our Sao Paulo office. Employees will be able to work remotely for up to 4 weeks per year.