(IND) PRINCIPAL, SOFTWARE ENGINEER - MACHINE LEARNING

Position Summary...

What you'll do...

Walmart is a multi-national people led tech powered omnichannel retailer with over 2.2M associates. At People.AI, we help, support and empower the Walmart’s HR function with AI and GenAI solutions to improve productivity, harnessing the opportunities for growth, focusing on well-being and cultivating cultures of belonging for all Walmart's associates. People.AI is a horizontal data science team supporting People Tech and Services across a multitude of use-cases and business domains.

People.AI strategy aims to empower the people business and associates by converting Walmart’s people data, business processes, knowledge, and HR subject matter expertise into different productivity experiences like knowledge search and Q&A, data analytics and insights, actions, and recommendations etc. The People.AI team is responsible for developing and deploying AI/ML solutions supporting the Walmart associates globally.

The People.AI team is seeking a highly skilled and experienced Principal Software Engineer. In this individual contributor role, you need to possess outstanding python development experience and a deep passion for AI/ML driven product development. This role involves leading the development of innovative ML systems on an enterprise scale, implementing cutting-edge Generative AI technologies, and collaborating with a diverse, yet highly synergized, team. Also, you will play a pivotal role in shaping the technical direction of our products and systems with responsibilities including leading the creation and maintenance of technical architecture, aligning it with business goals and scalability requirements, and architecting complex software systems to ensure performance, security, and scalability needs are met. Additionally, the role involves providing hands-on technical guidance and mentorship to software engineers, collaborating closely with cross-functional teams, and establishing and enforcing coding standards through thorough code reviews

About Team:

The EBS People Technology organization supports the successful deployment and adoption of new People technology across the enterprise. People Technology is one of the major segments of Walmart Global Tech’s Enterprise Business Services, which is invested in building a compact, robust organization that includes service operations and technology solutions for Finance, People, and the Associate Digital Experience.

Enterprise Business Services (EBS) @ IDC Bangalore and Chennai in India are focused on data driven, highly optimized products and implementations in the areas of Finance, Procurement, Human Resources and Retail business functions for multiple Walmart markets with open stack technologies and other ERP tools.

What you'll do:

This is a vital role with significant growth prospects. You will have work to do from day one and you will be counted on to create opportunities that align with the overall organization goals. Some of this role’s key responsibilities include, but not limited to:

• Work in an Agile environment as part of a scrum team
• Design end-to-end system architecture for data-intensive applications
• Develop and deploy production-grade real-time/batch machine learning services
• Collaborate with applied researchers and data scientists to iteratively improve our ML models and refine MLOps practice
• Support production operations by participating in on-call rotations
• Leverage state-of-the-art LLMs and frameworks like LangChain, LangGraph to create dynamic, natural language interfaces over enterprise data.
• Implement retrieval-augmented generation (RAG) pipelines using vector databases such as Milvus or FAISS to enable deep integration with Walmart’s knowledge ecosystem.
• Enhance the clarity, conciseness, and readability of generated knowledge Q&A to ensure it is well-suited for voice-based service agents.
• Build developer-friendly tools and reusable frameworks that abstract key aspects of ML and LLM system complexity—enabling developers without prior ML experience to quickly build high-quality, scalable AI solutions with minimal friction, while maintaining reliability, governance, and performance standards.
• Act as a platform enabler and technical collaborator, working closely with Data Scientists, Software Engineers, Product Managers, and MLOps/DevOps teams to streamline model deployment, monitoring, and lifecycle management.
  
  

What you’ll bring:

• You have 13+ years' experience in design, development and maintenance of highly scalable, secure and user-centric products and platforms
• Expert-level proficiency in programming languages such as Python or Java, with a strong track record of delivering high-performance, production-grade code for machine learning applications.
• Proven experience designing, developing, and operationalizing end-to-end ML systems, including data ingestion, feature engineering, model training, deployment, and monitoring.
• A solid understanding of core machine learning principles, including various model families (e.g., tree-based models, deep neural networks), feature selection techniques, and practical challenges such as data quality, bias, and concept/data drift.
• Deep experience in Linux-based development environments, along with containerization using Docker and orchestration with Kubernetes for scalable ML service deployment.
• Hands-on experience working with cloud platforms like Google Cloud Platform (GCP) or Microsoft Azure, with familiarity in their AI/ML tools, infrastructure components, and DevOps ecosystems.
• Proficiency in building and scaling API-based services and distributed systems, and in managing workflows using tools such as Apache Airflow or similar orchestration frameworks.
• Strong working knowledge of SQL and modern data engineering practices, enabling seamless integration of ML pipelines with batch and streaming data sources.
• Proficient in version control with Git, and experienced in collaborating within agile, cross-functional software teams.
• A deep grasp of software engineering best practices, including API design, automated testing, CI/CD pipelines, and observability for ML-driven systems.
• Clear and confident communication skills, with the ability to understand cross-functional requirements and translate them into scalable technical solutions.
• A mindset grounded in intellectual curiosity, with a passion for MLOps, cloud-native technologies, and driving innovation in scalable AI infrastructure.
  
  

Must-have experiences:

• Exceptional at writing high-performing production-quality code in Python
• Experience developing end-to-end CI/CD pipelines
• Comfortable working with linux and containers, experience with Kubernetes
• Hands-on experience designing and building end-to-end Machine Learning applications
• Familiar with version control using Git in collaboration settings
• Good understanding of common families of models, feature engineering, feature selection and other practical machine learning issues, such as data drift
  
  

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.

Belonging

We aim to create a culture where every associate feels valued for who they are, rooted in respect for the individual. Our goal is to foster a sense of belonging, to create opportunities for all our associates, customers and suppliers, and to be a Walmart for everyone.

At Walmart, our vision is "everyone included." By fostering a workplace culture where everyone is—and feels—included, everyone wins. Our associates and customers reflect the makeup of all 19 countries where we operate. By making Walmart a welcoming place where all people feel like they belong, we’re able to engage associates, strengthen our business, improve our ability to serve customers, and support the communities where we operate.

Equal Opportunity Employer

Walmart, Inc., is an Equal Opportunities 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 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.

Minimum Qualifications:Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and5 years’ experience in software engineering or related area.

Option 2: 7 years’ experience in software engineering or related area.

Preferred Qualifications...

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

Master’s degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years' experience in software engineering or related area.

Primary Location...

Pardhanani Wilshire Ii, Cessna Business Park, Kadubeesanahalli Village, Varthur Hobli , India R-2187132