(IND) STAFF, SOFTWARE ENGINEER

Position Summary...

What you'll do...

About Team:  

Enterprise Business Services is invested in building a compact, robust organization that includes service operations and technology solutions for Finance, People, Associate Digital Experience. Within EBS, our team processes the payment for suppliers of Walmart Warehouses who spread across United States and other 26 countries including South Africa, Argentina, Canada, Central America, Chile, China, India, Japan, and Mexico. We ensure the timely and accurate payments by reconciling the supplier merchandise against the invoices presented for the items ordered. 

Walmart’s Enterprise Business Services (EBS) is a powerhouse of several exceptional teams delivering world-class technology solutions and services making a profound impact at every level of Walmart.  

As a key part of Walmart Global Tech, our teams set the bar for operational excellence and leverage emerging technology to support millions of customers, associates, and stakeholders worldwide. Each time an associate turns on their laptop, a customer makes a purchase, a new supplier is onboarded, the company closes the books, physical and legal risk is avoided, and when we pay our associates consistently and accurately, that is EBS. Joining EBS means embarking on a journey of limitless growth, relentless innovation, and the chance to set new industry standards that shape the future of Walmart. 

As a staff engineer, you will be working with a high performing team of 10 to 20 engineers. You will be providing technical leadership and be accountable for the technical architecture of software applications built, released and deployed through sophisticated CICD pipelines. You will drive the development of next generation Walmart suite of products by mentoring engineers in building scalable, resilient, robust cloud based solutions. Your role is expected to make a difference to the products in terms of the scalability, quality and agility of the deliverables. 

What you'll do: 

Technical Leadership: 

Guide the team in architectural decisions and best practices for building scalable applications. 

Provide multiple alternatives for development frameworks, libraries, and tools.  Participate in the entire software development lifecycle, building, testing and delivering high-quality solutions. Collaborate with cross-functional teams to identify and solve complex problems.

Work closely with Engineering managers, Leads, Product partners and peers.

Development Frameworks. Enable the development of scalable solutions for data intensive batch and streaming applications. Your expertise in and understanding of thefollowing technology frameworks will help us to accelerate our technology modernization: 

Java/Python Frameworks: Spring Boot/Flask/Django: Spring boot Experience in developing Java / Spring boot Microservices. Working experience on Python Flask/Django based webservices framework. You should be well versed in building REST, Streaming and Batch applications using Java and Spring Boot. 

Micronaut: Your knowledge of Micronaut or a related framework that can be used as a alternative of Spring Boot will help us in building modular, easily testable microservice applications. 

Microservices based architecture:

Experience with webservices frameworks like Flask, Django, FastAPI.

End to end involvement in designing and developing applications using microservices design pattern.

Strong knowledge on using OpenAPI specifications for designing REST End points.

Spark and PySpark: 

Python Language Proficiency: Strong understanding of Python syntax and libraries like Pandas. Design, Develop, test and maintain high-quality software using Python programming language. 

Apache Spark: Experience with Spark transformations and actions. Knowledge of RDDs, Dataframe and Dataset APIs and the ability to perform complex data aggregations and joins. Understanding of Spark architecture (drivers, executors, cluster managers). 

Cloud Frameworks: GCP/Azure: Experience with one of the cloud platforms like GCP, Azure using resources like GCS, ADLS, BigQuery, Cloud functions, ADF, Kubernetes framework(GKE, AKS), Delta Lake(Databricks).

Docker: Should be expert in deploying applications on containerised infrastructure using Docker images.

Big Data Processing: 

Apache Spark: It is our unified analytics engine for large-scale data processing. Prior experience in PySpark projects is desirable. 

Apache Hadoop: Strong knowledge on the fundamentals of Hadoop and MapReduce. Ability to design processing system leveraging partitioning, bucketing and other data shuffling and sharding concepts with optimized performance for large datasets.

Data Warehousing: Deep knowledge and hands-on experience working with large data warehouses like Hive, Hudi, BigQuery etc. and leveraging the analytical(OLAP) design strategy.

Data Lake Management: Experience in designing data lake systems for incremental ingestions and transformation stages defining the various layers of data/delta lake.

What you'll bring: 

Bachelor's/Master’s degree in Computer Science, engineering, or related field, with minimum 10+ years of experience in software design, development and automated deployments. 

Have prior experience in delivering highly scalable large scale data processing Python applications.  

Strong in high and low level system design. Should be experienced in designing data intensive applications in open stack. 

A good understanding of CS Fundamentals, Microservices, Data Structures, Algorithms & Problem Solving  

Should be experienced in CICD development environments/tools including, but not limited to, Git, Maven, PyPI, Jenkins.  

Strong in writing modular and testable code and test cases (unit, functional and integration) using frameworks like PyTest, pytest-mock. 

Hands on experience building Python-based backend systems and experience of working in cloud based solutions is a must. Should be proficient in Python, PySpark, Pandas, Flask/Django/FastAPI and Kafka. 

Should be experienced in microservices architecture. Posseses good understanding of distributed concepts, common design principles, design patterns and cloud native development concepts.  

Hands-on experience in Flask/Django/FastAPI, concurrency, garbage collection, RESTful services, data caching services and ORM tools.  

Experience working with Relational Database and writing complex OLAP, OLTP and SQL queries.  

Experience in working with NoSQL/Document data stores like cosmos DB, Cassandra etc.  

Experience in working with Caching technology like Redis, Mem cache or other related Systems.  

Experience utilizing monitoring and alert tools like Prometheus, Splunk, and other related systems and excellent in debugging and troubleshooting issues.  

Exposure to Containerization tools like Docker, Helm, Kubernetes.  

Knowledge of public cloud platforms like Azure, GCP is must. 

About Walmart Global 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 expert's 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 of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail. 

Flexible, hybrid work: 
We use a hybrid way of working with primary in office presence coupled with an optimal mix of virtual presence. We use our campuses to collaborate and be together in person, as business needs require and for development and networking opportunities. This approach helps us make quicker decisions, remove location barriers across our global team, be more flexible in our personal lives. 

Benefits 

Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include a host of best-in-class benefits maternity and parental leave, PTO, health benefits, and much more. 

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 diversity- unique styles, experiences, identities, ideas and opinions – while being inclusive of all people 

Minimum Qualifications...

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

Primary Location...