Backend Software 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.

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

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.