Senior Backend Engineer at Stefanini working on payment solutions and API development. Collaborating with teams to enhance backend systems in a dynamic environment.
Responsibilities
Engage in backend/API engineering processes for payment solutions.
Collaborate with cross-functional teams to enhance payment systems.
Design and implement scalable APIs and services.
Maintain and optimize existing backend applications and databases.
Ensure compliance with regulatory frameworks.
Requirements
7+ years in backend/API engineering;
proven domain experience in Payments or Cash Management.
Strong expertise with Java (Spring Boot) and Python (FastAPI).
Hands-on experience with Kafka, schema registries, PostgreSQL, Redis.
Deep understanding of OAuth 2.1, OIDC, mTLS, and enterprise secret management.
Experience with Kubernetes (AKS), service mesh, Terraform, GitOps (ArgoCD).
Familiarity with Datadog AI/Dynatrace and AI-assisted observability.
Experience with regulatory frameworks: PSD2, GDPR, DORA
Proficiency in English and Spanish (tested).
Experience with vector DBs, RAG, LangChain or equivalent.
Familiarity with Confluent Platform and schema evolution best practices.
Experience in LLMOps, prompt engineering, and enterprise AI governance.
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