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
- Exposure to Google Cloud and GKE
- 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
- Familiarity with event driven systems such as Pub Sub or Kafka

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📌 Java Developer with Spring Boot (Monterrey)
🏢 DataArt
📍 Monterrey