Principal, Software Engineer

Position Summary...

What you'll do...

About The Team:

Capacity Engine is a backend application that integrates with the customer flows to choose when and where they receive their orders. Based on planning, forecasting, and cost models for market demands and past store history, Capacity Engine also assists associates by passing on information that lets them know how many orders they can accept at a time and anticipating resource constraints. Come Join us and Help Build a Capacity Engine that can enable resource needs for any use case within or outside Walmart and helps delivers best-in-class customer & associate experience.

What you will do:

• Lead development of Wal-Mart’s next-generation Capacity Engine back-end platform at a large scale with guaranteed availability targeting mass market usability. 

• Lead and participate in medium- to large-scale projects and work in small groups of three to six engineers by providing direction, and examples; identifying short- and long- term solutions and timeline; reviewing and approving proposed solutions; implementing new architectural patterns; and performing design and code reviews of changes.

• Build n-tier applications using RESTful Web Services, Java, J2EE, Spring, Hibernate, Oracle, WCNP, and Cosmos/No SQL DB. 

• Build back-end services using technologies such as Java and Tomcat and data stores to enable user interaction with large volume datasets. 

• Involved in technical database design including relational database like Oracle and non-relational database like Azure Cosmos.

• Develop robust, maintainable, reusable code and software tools for managing configuration, deployment, monitoring, performance, scalability, availability, security, and alerting for test, integration, and production environments. 

• Work with cross functional product and engineering stakeholders to design and implement scalable, performant, extensible solutions with customer needs in mind.

• Participate and involved into architecture discussions to develop system design and architecture for new products or improvements to existing ones.

• Own and implement best practices for supportability, debuggability, monitoring, alerting, dashboarding, CI/CD etc.

• Own and ensure all relevant guidelines (Ex: code review process, code branching strategies, logging best practices etc.) are always followed in the project

• Ensure all the deliverables meets the defined business requirements, non-functional requirements, low-maintainability, high-availability and high-scalability needs.

• Leading team in designing systems and apps.

• Leading team projects by reviewing project requirements, translating requirements into technical solutions while gathering requested information.

• Leading the discovery phase of projects to produce high level design by partnering with the product management, project management, and business and user experience teams.

• Work towards improving engineering excellence and the value delivered by the team.

What you'll bring:

• At least 7+ years of experience in architecting large scale systems with challenges of scalability and delivering sub-second latencies on 99.99% uptime.

• Expertise in one or more programming languages (e.g. Java, Python, etc.)

• Experience in leading teams and delivering large scale distributed systems and event-driven architectures.

• Proven understanding of microservices oriented architecture and extensible REST APIs

• Experience with cloud application development