Software Engineer III (BigData)

Position Summary… What youll do… About the team:
The Big Data team at Walmart is responsible for building and managing large-scale data processing and analytics platforms that power the company s data-driven initiatives. We empower a unified ecosystem for developing data products, ML/Ops, and AI/Ops, unlocking actionable insights from Walmart s data at scale across multiple cloud platforms.
What makes our team unique is our focus on both scale and speed. We leverage cutting-edge technologies, distributed computing frameworks and query engines to provide deliver real-time and batch analytics, delivering data-driven solutions that impact millions of customers and associates every day. Our collaborative culture encourages innovation, continuous learning, and cross-functional partnerships, allowing us to solve some of the most complex data challenges in retail at a global scale.
What youll do
You are responsible for coding, unit testing, and building high performance, scalable applications and platform tooling that meet the data and analytics needs of teams across Walmart, in the areas of cloud data warehousing and large-scale data processing. Through this role you have an opportunity to develop intuitive software - automation, self-service tooling, and platform services - that meets and exceeds the needs of internal customers and the company. You also get to collaborate with team members to develop best practices and requirements for the software. In this role it would be important for you to professionally maintain all code and create updates regularly to address customer and company concerns, particularly around platform reliability, cost efficiency, and query performance at scale. You will show your skills in analysing and testing programs/products before formal launch to ensure flawless performance across demanding data workloads. Troubleshooting coding and data pipeline problems quickly and efficiently will offer you a chance to grow your skills in a high-pace, high-impact environment. Software and data security is of prime importance and by developing programs that monitor and enforce access controls, data governance, and sharing of sensitive information, you will be able to add tremendous credibility to your work. You will also be required to seek ways to improve the platform, its automation, and its overall effectiveness. Adhere to Company policies, procedures, mission, values, and standards of ethics and integrity.
What youll bring
- B.E./B.Tech/MS/MCA in Computer Science or related technical field
- 5.5+ years of object-oriented programming experience in Java or Python
- Excellent computer systems fundamentals, DS/Algorithms, and problem-solving skills
- Hands-on experience building web-based services/applications and working with RESTful Web-Services, Spring/Spring Boot, and messaging systems like Kafka or Pub/Sub
- Working knowledge of Google Cloud data platform frameworks such as BigQuery, BigLake, Dataproc (Spark/Hive on GCP), and Cloud Composer (managed Airflow)
- Strong SQL skills, including experience with BigQuerys SQL dialect, partitioning/clustering strategies, and query performance tuning
- Experience in systems design and distributed systems, including scalability and fault tolerance considerations for large-scale data platforms
- Excellent organization, communication, and interpersonal skills
- Exposure to SQL/NoSQL data stores like Cassandra, Elasticsearch, MongoDB, etc.
- Exposure to cloud infrastructure, primarily GCP, with working knowledge of Azure or AWS a plus
- Exposure to build, CI/CD deployment pipelines and related technologies like Kubernetes, Docker, Jenkins, Terraform, etc.
- A continuous drive to explore, improve, enhance, automate, and optimize systems and tools About Walmart Tech Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That s what we do at Walmart Global Tech. We re a team of software engineers, data scientists, cybersecurity experts and service professionals within the world s leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered. We train our team in the skillsets…