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 an Intermediate Frontend Engineer, you will be working across the entire Brex stack, creating and maintaining new products, features, and building tools to help scale Brex. You will have the opportunity to learn and push the frontier of providing the best financial software experience to help companies grow. You’ll be encouraged to be metric and data-driven and to think creatively to help Brex scale and get prepared for the new markets we are about to enter. We’re looking for folks with not only an interest in building products and tools but also interested in leading multi-functional projects with lots of moving pieces. In this role, you’ll have the opportunity to drive direct business impact and shape our long-term technical vision with a high-quality bar.

Where you’ll work

This role will be based in our São Paulo office. We are a hybrid environment that combines the energy and connections of being in the office with the benefits and flexibility of working from home. We currently require a minimum of two coordinated days in the office per week, Monday, Wednesday and Thursday. As a perk, we also have up to four weeks per year of fully remote work! 

Responsibilities

• Work with engineers across the company to build new features and products.
• Work side-by-side with user facing teams (Sales, Support) to best understand the needs of our customers. 
• Design and implement experiments to improve our customer’s experiences.
• 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

• Experience architecting, developing, and testing client-side code end to end
• Experience developing software for the Web platform, including cross-browser compatibility
• Experience with modern tools like ES6+, React, GraphQL, & Webpack
• Uphold our high engineering standards
• Strong communication and interpersonal skills.

Bonus points

• Experience collaborating with specialists in product, design, and operations
• Experience with developing in React Native for mobile
• Basic experience with design tools
• Great writing skills
• Proactive approach.

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 Senior Full-Stack Software Engineer on our Task Workflows Platform team, you will build and scale the foundational infrastructure that powers core experiences across Brex. You will work across our extensive suite of platforms - including our multi-channel notifications engine, collaborative commenting system, and dynamic workflow rule builder. You will also play a pivotal role in evolving our task orchestration infrastructure infrastructure, helping us transition from a centralized, generic experience into highly tailored, purpose-built solutions for specific product domains.

You will tackle complex full-stack challenges, from designing scalable backend APIs and rule-evaluation engines for custom automations, to crafting intuitive frontend UX for our domain-specific task interfaces and workflow builders. Beyond core platform work, you will be part of a team that directly shapes broader product experiences - including leveraging AI to streamline user workflows and supporting the continuous evolution of our productivity tools in web and mobile.

Where you’ll work

This role will be based in Sao Paulo office. We are a hybrid environment that combines the energy and connections of being in the office with the benefits and flexibility of working from home. We currently require a minimum of three coordinated days in the office per week on Monday, Wednesday and Thursday. As a perk, we also have up to four weeks per year of fully remote work!

Responsibilities

• Work with engineers across the company to build new features and products end-to-end
• Own problems end-to-end, thinking through everything from user experience, data models, scalability, operability and ongoing metrics.
• Provide technical leadership to team by driving roadmap direction, architectural design and mentorship
• Work side-by-side with user-facing teams (Sales, Support) to best understand the needs of our customers.
• Tune and polish features to a high degree of excellence.
• Identify and implement reliability and performance improvements
• Uphold our high engineering standards and bring consistency to the codebases, infrastructure, and processes you will encounter.

Requirements

• 7+ years of professional experience designing, developing, and deploying full-stack products
• Strong proficiency in backend programming languages (Java, Kotlin, Python)
• Experience architecting, building, and maintaining scalable, high-availability distributed systems
• Experience designing and optimizing SQL and/or NoSQL databases, including data modeling, query performance tuning, and schema design
• Experience building and maintaining RESTful APIs and/or GraphQL services
• Experience with modern frontend technologies and tools like ES6+, React, TypeScript, and Webpack.

Bonus points

• Experience collaborating with cross-functional stakeholders and specialists in product, design, and operations
• Experience driving initiatives at a broader level across an organization or company
• Experience running in-product experiments, A/B testing
• Experience and interest in leveraging AI developer tools.

Brex LLC is a wholly owned subsidiary of Capital One, N.A.

The Community You Will Join:

Our team, Reliability Experience, is responsible for the ideation, development, and maintenance of opinionated UX across the Reliability Engineering ecosystem at Airbnb. We chart the paved path that all platform, infra, and product engineers rely upon to effectively monitor, investigate, and debug system health across Airbnb’s wide-ranging tech stack.

Reliability Experience engineers are on the forefront of building out new internally-used infrastructure and reliability products at Airbnb. We design, prototype, rapidly iterate, and do so with user experience top of mind. We partner closely with the rest of Reliability Engineering and Infrastructure while serving all engineers as customers. We engage openly and enthusiastically with our customers to understand and resolve their reliability pain points in a simple, scalable, and flexible fashion.

The Difference You will Make:

As a Senior Frontend Engineer, you will be partnering with Reliability, Platform, and Infrastructures teams and utilize your extensive knowledge of web technologies to lead and execute on building the paved path for Airbnb’s current and future internal needs. Your primary objective will be to make it easier to understand what’s happening in production and quickly triage bugs and outages.

A Typical Day: 

• Collaborate with the Reliability Experience, Incident Management, Observability, and Resiliency teams to design and develop high quality UX.
• Be an active contributor to your projects by creating high quality, tested pull requests and reviewing other’s designs and code.
• Build appropriate tests to ensure the reliability and performance of the software you create.
• Create and present your own design, product, and architecture documents and provide feedback on others.
• Stay up-to-date with the latest industry trends, technologies, and best practices in Web development and performance engineering, particularly in the Reliability and Observability space.
• Do all this in an opinionated fashion, with humility and curiosity, as we are our own product managers.

Your Expertise:

• 5+ years of industry engineering experience
• Experience building internal infrastructure UX, particularly in Data or Observability spaces (Prometheus is a plus)
• Expertise in visualization of large amounts of data in a clean, concise fashion
• Strong collaboration with colleagues across multiple timezones
• Fluency in HTML, CSS, Typescript, React and related web technologies
• Experience with modern JavaScript libraries and tooling (e.g. React, npm, webpack...)
• Experience with airbnb.io/visx/ is preferred but not required
• Experience with Grafana and similar solutions is preferred but not required
• Deep experience of understanding and solving engineering productivity pain points
• Solid engineering and coding skills. Demonstrated knowledge of practical data structures and asynchronous programming
• Strong communication and organizational skills
• Ability to work in areas outside of your usual comfort zone and show motivation for personal growth without a dedicated product manager
• Fluency in English (reading, writing, and speaking) is essential.

Our Commitment To Inclusion & Belonging:

Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply.