Senior Software Engineer

Senior Software Engineer Fraud Deflect • Itu, São Paulo, Brazil Descrição da vaga Company Fraud Deflect Role Senior Software Engineer Language Native / fluent English. Resumes in English. About the role Own and evolve critical payments / back-office services end-to-end: design, build, ship, and operate API-first Python systems that automate disputes / chargebacks and related workflows. You’ll partner directly with clients and internal teams to translate business rules into reliable integrations, services, and data models—leveraging Linux, with a pragmatic DevOps mindset. Responsibilities Lead project execution: technical design, implementation plans, code reviews, and delivery coordination. Build and operate REST APIs in Python (versioning, idempotency, auth, webhooks, integrations). Own API integrations with external partners / processors: onboarding, validation, retries, error handling, and SLAs. Implement complex payments / chargeback business logic from requirements and client work...