Backend Engineer Authentication

About CloudWalk:

We are not just another fintech unicorn. We are a pack of dreamers, makers, and tech enthusiasts building the future of payments. With millions of customers and a hunger for innovation, were now expanding our neural network - literally and metaphorically.

What Youll Do

This role sits on a team that owns both auth and ledger, so youll 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

What You Need to Succeed

• 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

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.

Join us at CloudWalk, where were not just engineering solutions; were building a smarter, AI-driven future for payments-together.

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Disclaimer: This job posting and Location has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.