CloudWalk

About the Role This is not a traditional pentesting role. At CloudWalk, you’ll go beyond running scans or writing reports. You’ll break into systems, exploit real weaknesses, and then engineer automations and agents to make sure those classes of vulnerabilities never come back. Your work will directly shape how CloudWalk defends itself at scale, turning offensive security knowledge into defensive e

About the Role At CloudWalk, our Security team doesn’t just react to threats; we engineer systems that anticipate and neutralize them before they ever reach our infrastructure. We are looking for a Machine Learning Engineer to build the intelligence layer of our edge defenses. You won’t just be tuning standard WAF rules or analyzing logs after the fact. You will design, train, and deploy machine le

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

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 Stratus, an EVM-compatible centralized ledger released as open source   - Build and operate the indexers that ingest and expose ledger state   - Support other teams integrating with the ledger   - Improve per

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.This is not your typical mobile dev role. We're looking for innovative engineers who can transform complex payment flows into sea

We are building Brazil’s first self-driving bank: a financial institution that operates autonomously, with decisions powered by data and systems designed to work seamlessly for the customer.Our team is responsible for developing the financial infrastructure that makes this possible. We build and operate systems for the full lifecycle management of CDBs, integration with CETIP/B3, regulatory data sy

At CloudWalk, we are building the core infrastructure behind our credit card operation — from authorization to clearing — handling real-world financial transactions at scale.This is not a typical backend role.You will work on systems where latency matters, correctness is critical, and failures have real impact.The RoleYou will design and build the systems that authorize, process, and reconcile tran

About the role: Ready to see the direct impact of your code on business results and customer lives?Join our Collection team as a Software Engineer and help shape the future of debt recovery at CloudWalk!You'll be building end-to-end collection journeys that maximize debt recovery while maintaining an exceptional customer experience.This role combines technical excellence with AI-powered soluti

About the Role This is not a traditional pentesting role. At CloudWalk, you’ll go beyond running scans or writing reports. You’ll break into systems, exploit real weaknesses, and then engineer automations and agents to make sure those classes of vulnerabilities never come back. Your work will directly shape how CloudWalk defends itself at scale, turning offensive security knowledge into defensive e