Java Senior Software Engineer - Finance Tech

About the Team

We are the Global Fintech Mexico team — aligned with Walmart's global vision while focused on delivering technology solutions tailored to the Mexican market. We foster an environment where technical curiosity, innovation, and continuous learning are fundamental to moving our business forward.

About the Role

As a Senior Software Engineer , you will be an individual contributor in a platform-level role. You will be responsible for the implementation and production deployment of cloud-based systems, as well as the maintenance and potential redesign of existing on-premise applications.

What You'll Do

• Translate complex business processes into concrete technical implementations
• Follow and act upon the established deployment pipeline
• Read and interpret design diagrams, and effectively replicate that knowledge to junior engineers
• Review pull requests to ensure adherence to software development best practices
• Write code aligned with SOLID principles , applying appropriate design patterns for each solution
• Design and develop tests across the full software development lifecycle — from unit tests to end-to-end (E2E) tests
• Analyze legacy codebases and lead their transformation into modern, robust solutions.

What You'll Bring

• 5+ years of solid, hands-on coding experience with a primary focus on the Java ecosystem
• Strong command of JDK 17+ — including collections, data structures, conditionals, and multithreading
• Hands-on experience with Spring , Spring Batch , and Spring Boot
• Solid understanding and application of Object-Oriented Programming (OOP) principles
• Experience managing database connections and working with both SQL and NoSQL database engines
• Proven experience implementing D esign Patterns
• Excellent ability to independently analyze complex issues, develop innovative solutions, and provide technical leadership
• Highly collaborative mindset with a genuine curiosity to learn and explore software in depth
• General understanding of the cloud-based software development lifecycle
• Knowlage about communication

Nice to Have

• Experience with JSPs
• Familiarity with React