Staff, Software Engineer

Overview

Staff Software Engineer in Walmart Global Tech's Customer Technology service, building data pipelines, web services and messaging solutions for Finance, People and Associate Digital Experience.

What you'll do

• Architect and develop application and pipelines using Java Spring Boot and Scala to process large volumes of data efficiently.
• Implement data transformation logic to cleanse, normalize and aggregate data from various sources, ensuring high data quality and consistency.
• Develop web services on Java and Scala using libraries such as Akka HTTP and Play Framework.
• Develop efficient and scalable Kafka messaging solutions, configure and manage Kafka clusters, and ensure reliable data ingestion and processing.
• Integrate data from different systems and sources, including structured and unstructured data, databases and Mainframe systems, ensuring seamless data flow and compatibility.
• Implement data validation and quality checks within data pipelines, and handle exception handling and error logging.
• Develop and execute unit, integration and end-to-end tests to ensure the reliability and correctness of Spark applications.
• Debug and troubleshoot issues during development and production phases.
• Contribute to DevOps for SBT builds, application deployment stages and releases.
• Design, implement and maintain Continuous Integration and Continuous Deployment pipelines.
• Automate and optimize the build, test and deployment processes to enable rapid and reliable software delivery.
• Collaborate with cross-functional teams, including product managers, architects and other developers, to understand data requirements and deliver optimal solutions.
• Document data engineering processes, data flows and technical specifications.
• Keep up to date with the latest advancements in Java, Spark Scala and related technologies, frameworks and tools.

What you'll need

• Bachelor's degree in Computer Science, Software Engineering or a related technical discipline.
• 8 to 12 years of core software product development experience.
• Profound knowledge of the Java language ecosystem, including modern features such as virtual threads, lambdas and streams.
• In-depth, practical experience with Spring Boot, Spring MVC, Spring Security and Spring Cloud, GCP.
• Hands-on expertise in the Scala programming language, with a solid understanding of object-oriented and functional programming paradigms.
• Familiarity with big data technologies, distributed computing concepts, and experience handling large-scale data pipelines using GCP Apache Spark.
• Proven experience designing, building, securing and maintaining RESTful web services and enterprise-grade microservices.
• Strong expertise in Kafka messaging architecture and extensive hands-on experience developing real-time, event-driven Kafka applications.
• Deep understanding of streaming architectures and event-driven mechanics using message brokers such as Apache Kafka or RabbitMQ.
• Experience connecting microservices and data pipelines to relational (SQL) and non-relational (NoSQL) databases using modern ORM/data frameworks such as Hibernate or Spring Data JPA.
• Strong understanding of cloud-based data architecture and native GCP services, specifically BigQuery, Cloud Storage and Dataflow.
• Familiarity with containerization tools (Docker, Kubernetes) and a solid grasp of CI/CD pipelines (Jenkins, GitLab CI/CD).
• Passion for writing clean code backed by comprehensive JUnit and mock test suites.
• Proactive ability to isolate bottlenecks, debug legacy code regressions, and implement memory or query-level optimizations.
• Solid grounding in core computer science principles including algorithms, data structures, databases and operating systems.
• Mastery of version control (Git), rigorous debugging practices, and full Software Development Lifecycle (SDLC) methodologies.
• Analytical thinking to break down complex data engineering challenges, find root causes and propose robust, clean solutions.
• Minimum: Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering or a related area and 4 years' experience in software engineering or a related area. Option 2: 6 years' experience in software engineering or a related area.

Nice to have

• Master's degree in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering or a related area and 2 years' experience in software engineering or a related area.

Details

• Location: Chennai, Tamil Nadu, India (Tower 1, Intl Tech Park Radial Road, Chennai).
• Work mode: based in the Chennai office for daily work, with flexibility for associates to manage personal lives.