Grupo QuintoAndar | Senior Software Engineer - IAM

About Grupo QuintoAndar We are Grupo QuintoAndar, the largest real estate ecosystem in Latin America. Guided by a shared purpose of helping people love where they live, we have a diversified portfolio of brands and solutions across different countries in Latin America, covering all phases of the housing journey. We also have a Technology Hub in Portugal. We develop technology and innovation to transform and enhance the overall living experience. With the support of a world-class team of investors and advisors, including Kaszek, Qualcomm, General Atlantic, and SoftBank, Grupo QuintoAndar is currently valued at over USD 5.1 billion and continues to grow year over year. Here, you will work with top professionals in the market, in an environment that breathes innovation, collaboration, and high performance. To learn more about our story, visit: https://grupoquintoandar.com/pt/ . Location & Remote Work Our technology team operates under a "remote-first" model, which means we work from home and can live anywhere in Brazil. We also offer the option of working from our São Paulo offices or partner coworking spaces, up to twice a week. Hiring Process Stages Our selection process currently lasts an average of 40 days, from application to completion of the assessment. Going through: Application Review Interview with Recruiters Tech Screening with Engineering Team (Coding Interview) Technicals Interviews (Architecture live cases) Offer About the Team The IAM team is at the core of QuintoAndar's platform security. We build and maintain the systems that guarantee the right people and the right services have access to the right resources at the right time. We handle millions of authentication requests daily, and our services are the foundation of trust for the entire QuintoAndar ecosystem. Responsibilities These are the Senior Software Engineer responsibilities in the IAM team: Build Core Security Systems: Design, develop, and scale QuintoAndar's centralized Authentication (AuthN) and Authorization (AuthZ) platforms. Solve Complex Engineering Challenges: Succeed in a wide range of complex situations across multiple axes, focusing heavily on scale, resilience, fault tolerance, and low latency (auth checks happen on every request!). Collaborate Cross-Functionally: Work with other engineering teams, product managers, and the broader Security organization to define paved roads for secure service-to-service and user-to-service communication. Full Lifecycle Ownership: Be responsible for the entire software development lifecycle of IAM products: definition, development, testing, production deployment, and maintenance. Quality & Mentorship: Be a guardian of your team's delivery quality by reinforcing the adoption of good software development practices. Participate in design and code reviews, and mentor other software engineers. Operational Excellence: Handle incidents, troubleshoot, and debug software issues with a learning mindset. Create post-mortems and take actions to avoid similar incidents in the future. Actively monitor the health and performance of auth services. Requirements What we are looking for: Strong IAM Fundamentals: Proven knowledge and practical experience with Authentication and Authorization concepts, protocols, and standards (e.g., OAuth 2.0, OpenID Connect (OIDC), SAML, SCIM, JWT, RBAC/ABAC). Software Engineering Expertise: Proficient in one or more programming languages commonly used in our stack (such as Java, Kotlin, or Go/Python). Architecture & API Design: Experience designing and evolving scalable software architecture from the ground up, and highly skilled in creating secure RESTful APIs. Agile & Fundamentals: Proven experience with Agile development practices. Solid software engineering fundamentals, including version control, testing, deployment automation, and design documentation. Database & Observability: Strong understanding of database design and evolution. Experience with tools and practices for software monitor…