Security Engineer, Detection & Response

Engineering at Brex

The Engineering team includes Data, IT, Security, and Software, and is responsible for building innovative products and infrastructure for Brex and our customers. We believe that engineers should accelerate the business through technology, and collaborate across multiple teams to accomplish that.

Teams are autonomous, filled with inclusive individuals, eager to learn, teach, constantly improve how things work. The software we build today is the foundation for dozens of Brex systems in the future, so engineers have a strong sense of ownership and accountability and take pride in their craft.

What you’ll do

As a Detection & Response Engineer, you will focus on detecting and responding to security threats across Brex's corporate and cloud environments and developing tools to improve our detection and response capabilities. Our core team functions include threat detection, security telemetry, security incident response, and we perform systems engineering and automation to support those pillars.

Detection & Response is part of our wider Security Operations team which means you will have the opportunity to work closely with the corporate security and security awareness functions to improve security configurations, drive positive employee behaviors and generally work to prevent events from becoming incidents. You will  also help build and maintain our team’s open source project Substation and have the opportunity to contribute to the Brex Tech Blog. You’ll be part of a team that actively contributes to the wider security community and has a commitment to mentorship and engineering excellence.

We’re looking for individuals with a strong background and interest in detecting, responding to, and resolving security incidents and other security challenges. You should be comfortable dealing with lots of moving pieces, changing priorities, and new technologies, while having a keen eye towards detail. Most importantly, you should be enthusiastic about working with a variety of backgrounds, roles, and needs across Brex. Building a world-class financial service requires world-class security.

Responsibilities

• Work on a cross-functional team to detect and respond to security threats across Brex's corporate and cloud environments
• Perform security incident response, including investigation, remediation, and documentation, participate in periodic threat hunting
• Research attacker techniques and process threat intelligence to create, test, and tune threat detection signals across corporate and production environments
• Leading, scoping and building features, participate in designing, and maintaining tools and systems that support the team’s threat intelligence, threat detection, and security incident response functions
• Collaborating and partnering with other engineering teams to drive remediation of security vulnerabilities, while balancing prioritization of security issues within SLAs and teams’ respective product backlogs

Requirements

• Bachelor’s degree in Computer Science, Engineering or related field (or equivalent training), fellowship, or 3+ years work experience
• Experience working in a detection and response or related role, either in a corporate or production environment
• Familiarity with CI/CD systems and DevOps workflows (e.g. -  Buildkite, Flux, Git, Terraform) and experience deploying and maintaining detection and response systems (e.g. - SIEM, data pipelines, SOAR, domain monitoring)
• While not primarily a development role, the team develops and maintains tools written in Go and Python, so experience with coding is required
• Caring about system design, valuing building things correctly, an understanding of a MVP approach and an empathetic mindset when working with others.
• You thrive in a collaborative environment filled with a diverse group of people with different expertise and backgrounds. We currently have around 30 nationalities represented with more than ½ the company working in a country different from the one they grew up in)

Bonus points

• Proficiency with Go
• Experience with securing distributed systems in AWS and cloud environments
• Contributions to the wider technical community (open source, public research, mentorship, community organizing, blogging, presentations, etc)