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Engineer

Backend Engineer Authentication

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Remote
Full time - Remote
Remote

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, we're now expanding our neural network - literally and metaphorically.

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

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

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Cloudwalk | Introductory Questions 01

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