Backend Engineer (Java, PIX) - 1 Year Contract
Builds and maintains Java/Spring Boot backend services powering PIX payment integrations in Brazil: payment initiation, transaction status, reconciliation, and API integrations with Brazilian banks and PSPs, with a focus on consistency, idempotency, reliability, and production troubleshooting.
- Compensation
- Not disclosed
- Location
- Brazil
- Work setup
- Remote
- Seniority
- Not specified
- Employment
- Contract
- Experience
- Not specified
- Category
- Backend
- Posted
Skills
Must have
- Strong hands-on backend development experience with Java, preferably Spring Boot
- Solid understanding of RESTful APIs, microservices architecture, distributed systems, and database design
- Experience with relational databases and SQL
- Strong backend fundamentals: concurrency, transaction management, error handling, performance optimization
- Experience building and maintaining production systems and independently investigating technical issues
- Familiarity with automated testing, CI/CD pipelines, Git, and production monitoring tools
- Strong problem-solving skills, ownership, and hands-on coding/debugging
- Ability to collaborate in a fast-paced, cross-functional engineering environment
Nice to have
- Familiarity with caching, messaging systems, and asynchronous processing
- Experience with PIX, Brazilian payment systems, or integrations with Brazilian banks and local PSPs
- Experience in payment processing, fintech, banking, digital wallets, or 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
Full description
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.
About the Role:
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 requirements into robust technical solutions.
Experience with PIX is a strong advantage, but we also welcome strong Java backend engineers from payments, fintech, banking, and other transaction-intensive environments who can quickly learn the Brazilian payment ecosystem.
What You'll Do:
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Design, develop, test, and maintain scalable backend services using Java and Spring Boot to support PIX payment integrations and related payment flows in Brazil.
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Implement and optimize payment processing capabilities, including payment initiation, transaction status management, reconciliation, and exception handling.
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Integrate with Brazilian banks, payment service providers, and external financial systems through APIs and other integration mechanisms.
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Build reliable, high-performance backend systems with a strong focus on transaction consistency, idempotency, fault tolerance, and system availability.
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Troubleshoot production issues, identify root causes, and implement effective solutions to improve system stability and performance.
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Monitor system performance, identify bottlenecks, and continuously improve the reliability, scalability, and efficiency of payment services.
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Support payment-related security, risk control, and compliance requirements in collaboration with relevant stakeholders.
What We're Looking For:
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Strong hands-on backend development experience with Java and PIX, preferably using Spring Boot and related frameworks.
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Experience with PIX, Brazilian payment systems, or integrations with Brazilian banks and local payment service providers.