Java Staff Software Engineer - Fintech
Summary
Staff-level Java engineer on Walmart's Global Fintech Mexico team, owning end-to-end delivery of fintech products on hybrid cloud architectures, defining coding standards, designing L0-L2 architectures, and mentoring engineers. Core stack: Java, Spring, SQL/NoSQL databases, and Kubernetes.
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 Staff Software Engineer, you will be an individual contributor in a platform-level role. You will be responsible for driving the end-to-end delivery of the team's products on hybrid architectures, while also mentoring and coaching less experienced software engineers and defining the future technical direction of our current systems.
What You'll Do
- Own and manage the development lifecycle of the products and ecosystem delivered by the team.
- Define coding standards and actively enforce their correct adoption across the team
- Develop architectural designs at the L0, L1, and L2 levels.
- Communicate solution details clearly to the rest of the team and guide engineers toward correct implementations.
- Identify and build efficient paths to automate workflows, testing pipelines, and incident response.
- Plan and design the migration of legacy systems to the cloud or hybrid cloud environments.
What You'll Bring
- 8+ years of solid, hands-on coding experience with a primary focus on the Java ecosystem
- Deep knowledge about the Spring Framework and the most used modules
- Deep knowledge of the JDK, the JVM, and the Java language — including collections, data structures, conditionals, and multithreading
- Solid understanding and application of Object-Oriented Programming (OOP) principles
- Experience managing database connections and working with both SQL and NoSQL database engines
- Strong grasp of cloud computing concepts, container orchestration (Kubernetes), and related technologies
- Proven experience implementing design patterns and integration 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
- Strong understanding of the cloud-based software development lifecycle.
Nice to Have
- Experience with JSPs
- Familiarity with React
- Java/Spring Certification
Equal Opportunity Employer
Walmart, Inc. is an Equal Opportunity Employer By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing unique styles, experiences, identities, ideas and opinions while being welcoming of all people.
Walmart doesn’t charge any recruitment or similar fee in the recruitment process, including but not limited to interview, offering, and onboarding.