Senior Auth Engineer — Users & Auth

Clara · Latin Americasenior

In short

▸Ingeniero de autenticación senior que arquitecta y construye el sistema de identidad de Clara.
▸Trabajas en todo el ciclo de vida del usuario, integrando Auth0 y asegurando seguridad end-to-end.
▸Eres el referente de auth para toda la ingeniería y lideras soluciones críticas en tiempo real.

No se requiere inglés, pero se trabajan con equipos distribuidos en América.

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What they ask for

✓4+ años de experiencia en ingeniería de software en entornos de producción
✓2+ años implementando autenticación y autorización en plataformas modernas (Auth0 preferido)
✓Experiencia full-stack con enfoque en backend
✓Profundidad en seguridad de aplicaciones web
✓Capacidad para liderar arquitectura y decisiones técnicas
✓Capacidad para colaborar con product y tech lead en iniciativas complejas

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Auth0JavaSpringReactCI/CDKubernetesDockerAWSPostgreSQLREST APIs

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Ready to accelerate your career? Clara is the fastest-growing company in Latin America. We've built the leading solution for companies to make and manage all their payments. We already help over 20,000 large and growing businesses operate with agility and financial clarity through locally issued corporate cards, bill pay, financing, and a powerful B2B platform built for scale. Clara is backed by some of the most successful investors in the world, including top regional VCs like monashees, Kaszek, and Canary, and leading global funds like Notable Capital, Coatue, DST Global Partners, ICONIQ Growth, General Catalyst, Citi Ventures, SV Angel, Citius, Endeavor Catalyst, and Goldman Sachs - in addition to dozens of angel investors and local family offices. We’re building the financial infrastructure that powers high-performing organizations across the region. We invite you to join us if you want to be part of a fast-paced environment that will accelerate your career and support you to do some of the best work of your life alongside a passionate and committed team distributed across the Americas. Auth Engineer — Users & Auth We're looking for an Auth Engineer to own, architect, and build the systems that define how users exist and move within Clara's platform — authentication, authorization, identity, and access control. This is one of those roles where the work is invisible when it's done right and critical when it's not. The scope is deep and end-to-end: architecting the identity layer, designing auth flows, managing the user lifecycle, integrating Auth0 with Clara's platform, and making sure the frontend and backend sides of identity speak the same language. You'll be the person the rest of engineering turns to when there's an auth question no one else can answer. Security isn't a checklist here — it's a first-class concern baked into how we build. We move fast and trust our engineers to own outcomes end-to-end. That means autonomy to make decisions, proactivity to surface problems before they become blockers, and the attitude to push initiatives across the finish line without waiting to be told what to do. Your responsibilities will include: • Designing and building the identity and access layer that Clara's apps rely on across products — making it work end-to-end and hold up as the platform grows, in close partnership with the team's tech lead • Owning auth end-to-end: architecture, implementation, and Auth0 integration across frontend and backend • Designing and hardening auth flows and the full user lifecycle • Being a strong reference on identity and access for the rest of engineering — a go-to for the hard auth problems that block other teams • Setting and holding the security and quality bar on identity-critical paths through code reviews and design reviews • Partnering with the team's tech lead and with product on the feasibility of auth-heavy initiatives, and spotting where AI tooling can close work that would otherwise take months Who you are • 4+ years of software engineering experience with solid execution in production environments • 2+ years of hands-on experience implementing authentication and authorization on a modern identity platform — experience with Auth0 specifically is preferred, comparable platforms is also welcome; IAM depth is a strong plus • Full-stack engineering with your strength on the backend. We work primarily in Java and Spring on the backend and React on the frontend — depth in those is a plus, but we care more about strong fundamentals and how fast you ramp than about years in any one stack • Deep understanding of security best practices for web applications and secure

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