Middle Java Developer with Spring Boot

We are looking for two Backend Software Engineers (Junior to Middle level) to join a cross-functional squad on the Payments Platform. This is a hands-on execution role: designing, building, testing and operating payment services with clean, maintainable Java code, applying SOLID principles and design patterns, and handling sensitive financial data securely. The engineer works closely with business experts, UX/UI designers and the infrastructure/delivery teams, owning the quality and reliability of what they ship in production.

The client is building its new Payments Platform: a modular, cloud-native backend that connects customer experience, business and technology across every market in the region. The platform drives conversion (frictionless and one-click checkout, local payment methods and currencies, intelligent retry of failed authorizations), operational efficiency (smart routing of each transaction to the processor with the best success/cost ratio, automated reconciliation and chargeback handling) and new revenue models (subscriptions, recurring payments, BNPL, and a loyalty wallet enabling hybrid miles + money payments).

• Design backend services and REST APIs for the Payments Platform using Java and Spring Boot
• Develop and maintain backend services with clean, testable, and maintainable code
• Apply SOLID principles and established design patterns in software development
• Implement unit, integration, and contract tests to support software quality
• Apply secure coding practices for API security and safe handling of payment and customer data
• Collaborate with infrastructure and delivery teams on CI/CD pipelines
• Deploy and operate services in a cloud environment with attention to scalability, security, and resilience
• Monitor production performance and resolve incidents proactively
• Participate in Agile ceremonies including daily stand ups, sprint planning, and retrospectives
• Document technical solutions and share knowledge with the team

• 2+ years of professional backend development experience with Java
• Hands on experience with Spring Boot building production services
• Solid understanding of SOLID principles and common design patterns
• Experience designing and consuming REST APIs
• Experience with automated testing including unit and integration testing
• Knowledge of SQL and relational databases
• Familiarity with Git based workflows and CI/CD concepts
• Fluency in Spanish and intermediate English for documentation and international collaboration

• Experience with contract testing
• Experience with PostgreSQL
• Awareness of API security and secure handling and transfer of sensitive data
• Exposure to cloud platforms, containers, and microservices
• Exposure to Google Cloud and GKE
• Familiarity with event driven systems such as Pub Sub or Kafka