Backend Engineer Authentication

## What You'll Do This role sits on a team that owns both auth and ledger, so you'll occasionally pick up work across both areas. - Develop and maintain authentication systems used by both customers and internal services - Build and operate token issuance, validation, and rotation - Maintain HSM-backed key management and signing infrastructure - Improve the security of auth flows in a regulated financial environment - Build SDKs and tooling that other engineering teams use to integrate with auth - Communicate clearly with both technical and non-technical stakeholders ## Who You Are - Has operated critical infrastructure on cloud providers like GCP or AWS, using tools such as Terraform - Has experience with cryptographic authentication systems - Has experience with authentication and authorization protocols (OAuth/OIDC, JWT, SAML) - Has experience with PCI compliant systems - Is proficient in Rust - Some knowledge of the Brazilian payments ecosystem is a plus - Experience with HSMs is a plus - Communicates clearly and effectively - Advanced English communication skills, primarily for internal communication with our diverse, multinational team ## Why Join CloudWalk - Work at one of the world's most innovative and fastest-growing fintechs - Collaborate with a diverse team of hackers, artists, and visionaries - Explore the power of AI to amplify your impact as an engineer - Build solutions that touch millions of lives every day ## The Future We See At CloudWalk, we envision a future where AI empowers every field to reach new heights: - People teams leveraging AI to transform talent acquisition and employee development. - Marketing professionals creating data-driven, AI-powered campaign strategies. - Customer Success teams enhancing client experiences with intelligent solutions. - Risk analysts combining human expertise with AI to navigate complexities. - Designers collaborating with AI to push creative boundaries. ## About Us Join us at CloudWalk, where we're not just engineering solutions; we're building a smarter, AI-driven future for payments—together.