Backend Engineer (Java, PIX)

Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance to education, research, payments, institutional services, and more. Our mission is to increase the freedom of money and financial access for people around the world. Responsibilities: • Design, develop, test, and maintain scalable backend services using Java and Spring Boot to support PIX payment integrations and related payment flows in Brazil. • Implement and optimize payment processing capabilities, including payment initiation, transaction status management, reconciliation, and exception handling. • Integrate with Brazilian banks, payment service providers, and external financial systems through APIs and other integration mechanisms. • Build reliable, high-performance backend systems with a strong focus on transaction consistency, idempotency, fault tolerance, and system availability. • Troubleshoot production issues, identify root causes, and implement effective solutions to improve system stability and performance. • Collaborate closely with product managers, QA engineers, DevOps, and other engineering teams to deliver payment features from development through production deployment. • Write clean, maintainable, and well-tested code, participate in code reviews, and contribute to engineering best practices. • Monitor system performance, identify bottlenecks, and continuously improve the reliability, scalability, and efficiency of payment services. • Support payment-related security, risk control, and compliance requirements in collaboration with relevant stakeholders. Requirements: • Strong hands-on backend development experience with Java , preferably using Spring Boot and related frameworks. • Solid understanding of RESTful APIs, microservices architecture, distributed systems, and database design. • Experience working with relational databases and SQL; familiarity with caching, messaging systems, and asynchronous processing is a plus. • Strong understanding of backend engineering fundamentals, including concurrency, transaction management, error handling, and performance optimization. • Experience building and maintaining production systems, with the ability to independently investigate technical issues and deliver practical solutions. • Familiarity with automated testing, CI/CD pipelines, Git, and production monitoring tools. • Strong problem-solving skills, ownership, and a willingness to get hands-on with coding, debugging, and operational troubleshooting. • Ability to work collaboratively in a fast-paced, cross-functional engineering environment. Preferred Qualifications: • Experience with PIX , Brazilian payment systems, or integrations with Brazilian banks and local payment service providers. • Experience in payment processing, fintech, banking, digital wallets, or other transaction-intensive systems. • Familiarity with payment reconciliation, webhook processing, transaction lifecycle management, and payment failure recovery. • Experience with cloud infrastructure, containerization, Kubernetes, and observability tools. • Understanding of payment security, fraud prevention, and financial regulatory requirements. What We're Looking For We are looking for a hands-on engineer who enjoys writing code, solving complex backend problems, and building reliable payment systems. The ideal candidate takes ownership from development to production, is comfortable debugging real-world issues, and can turn business re