Clara is the leading spend management platform in Latin America. More than 40,000 businesses run on our corporate cards, bill pay, financing and B2B payments, and in 2025 the Financial Times named Clara the fastest-growing company in Latin America. We're ~400 people, backed by Kaszek, monashees, Coatue, DST General, ICONIQ, General Catalyst and Goldman Sachs, among others.

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 secu

📌 Senior Auth Engineer — Users (Buenos Aires)
🏢 Clara
📍 Buenos Aires