Walmart Principal Software Engineer - API 

United States, California, Sunnyvale 

749009945

Minimum of 8 years of experience designing and implementing REST API web services using Spring Boot and/or Play Framework in Scala or Java.

Experience building, scaling, and maintaining high-quality API products with an advertiser-centric focus.

Knowledge of designing and testing relational database management systems such Azure SQL, and NoSQL databases like Cassandra and Elastic Search.

Proficiency in testing and troubleshooting using JUnit tests and Mockito tests.

A strong understanding of system design, data structures, and algorithms.

Familiarity with object-relational mapping tools, particularly Hibernate, is desirable.

A growth-oriented mindset and a willingness to raise the technical bar, as well as to identify opportunities for improving existing processes, tools, and systems to achieve high scale and productivity.

Experience with real time message processing using Apache Kafka.

Experience working with Docker and Kubernetes a plus.

Familiarity with Cloud Computing Services such as Google GCP and Microsoft Azure, as well as Distributed Storage Systems like Hive and Elastic Search a plus.

Excellent oral and written communication skills, with the ability to present to both technical and non-technical audiences.

A strong sense of accountability and ownership, self-discipline, and focus on high-quality deliverables, and a team-oriented approach that values design thinking, efficiency, and innovation.

Build and maintain backend software services that can handle millions of requests per day to support advertising on Walmart.com and its subsidiaries.

Utilize Spring Boot and Play framework in Java or Scala to design and implement low-latency REST APIs with Azure SQL Server and Cassandra as storage systems, enabling brand advertisers and API partners to manage ad campaigns in a self-serve manner.

Develop and maintain APIs allowing advertisers to generate on-demand reports, perform real-time event queries, and perform ad-hoc analysis of aggregated data using Druid and Elastic Search.

Work with modern web-based architectures, including REST APIs, Serverless, and event-driven microservices.

Create and deploy large-scale, containerized applications using Docker and Kubernetes in public clouds like Google GCP and Microsoft Azure.

Collaborate with other scrum teams, QA, Product, Program Management, and Partner-Ops, while partnering with cross-functional project development teams.

Participate in 24/7 on-call rotations to troubleshoot production issues across cross-functional teams.

Mentor / Manage software engineers and lead engineering projects.

Coordinate, create, and complete technical design discussions to drive technical architecture