Vaga de Senior Platform Engineer, GraphQL, Application Infrastructure

Why join us 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. Were 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 The Engineering team includes Data, IT, Security, and Software, and is responsible for building innovative products and infrastructure for both internal and external users. We have multiple autonomous and collaborative teams who are eager to learn, teach, and constantly improve how things work. Together, we strive to build robust and scalable systems that enable Brex to grow rapidly and help our customers reach their full potential. What youll do The Application Infrastructure team sits in the Infrastructure group alongside Release Infrastructure and Cloud Infrastructure. We simplify writing code for every product developer at Brex. As an engineer on the Application Infrastructure team, you will build and own a suite of platforms and tools that Product Engineers use to deliver quality software solutions quickly. You will have the opportunity to work with a diverse range of technologies enabling federated GraphQL APIs, remote development environments, pre-merge testing, Brex-wide dependency management, fast Kotlin builds, developer CLIs, and more. You will be a domain expert and change agent taking our Federated GraphQL platform to the next level. Youll see the big picture of how Brex developers use GraphQL to build products, and utilize GraphQLs open source and vendor ecosystem to enable Brex devs to ship better products faster. You will need to be comfortable regularly working on complex systems across multiple programming languages and levels of abstraction. You will have the opportunity to learn and push the frontier of providing the best financial software experience to help companies grow. You will be encouraged to be metric and data-driven and to think creatively to help Brex scale into new markets and verticals. Responsibilities Design and build robust platforms and tools to accelerate Brex product development Own and maintain critical API infrastructure serving hundreds of requests per second Identify and implement reliability and performance improvements in our backend stack Uphold our high engineering standards and bring consistency to the codebases, infrastructure, and processes you will encounter Requirements 5+ years of professional experience in a software engineering role GraphQL experience, especially familiarity with Federated GraphQL Kotlin background (Java and Scala are also acceptable) Kubernetes familiarity Platform or Full-Stack development background Strong communication, interpersonal, and project planning skills English proficiency/fluency, both written and speaking (note: interviews will be conducted in English) Must be willing to work in office 2 days per week on Wednesday and Thursday, starting September 1st, 2025 when we open our Sao Paulo office Bonus points Experience working with Bazel; bonus points if youve written rules or maintained Bazel as a platform Extensive experience with other multi-language build systems Golang experience, especially building CLIs Experience extending IDEs Location Must be working in Brazil at the start of role Please be aware, job-seekers may be at risk of targeting by malicious actors looking for personal data. Brex recruiters will only reach out via LinkedIn or email with a brex.com domain. Any outreach claiming to be from Brex via other sources should be ignored.