Senior, Data Scientist

Position Summary...

What you'll do...

About Team The Catalog Data Science Team at Walmart Global Tech is focused on using the latest research in generative AI (GenAI), artificial intelligence (AI), machine learning (ML), statistics, deep learning, computer vision and optimization to implement solutions that ensure Walmart's product catalog is accurate, complete, and optimized for customer experience. Our team tackles complex data science and ML engineering challenges related to product classification, attribute extraction, trust & safety, and catalog optimization, empowering next-generation retail use cases.

We take pride in writing solid production code in Python, deploying and supporting model services and pipelines, and pushing the boundaries in latency, throughput, and scalability. As a Senior Data Scientist (Machine Learning Engineer) on the Catalog Data Quality team, you will collaborate with other Data Scientists and ML Engineers to develop, deploy, and scale machine learning models in production to extract attributes from product information.

You will play a key role in supporting the attribute extraction platform and catalog data quality solutions - adding capabilities and driving adoption of GenAI-powered solutions to increase the coverage and accuracy of the Walmart's product catalog. The Data Science and ML Engineering community at Walmart Global Tech is active in most of the Hack events, utilizing the petabytes of data at our disposal, to build some of the coolest ideas.

All the work we do at Walmart Global Tech will eventually benefit our operations & our associates, helping Customers Save Money to Live Better. What you'll do:
As a Senior Data Scientist for Walmart Global Tech, you'll have the opportunity to

* Design, develop, and deploy AI/ML, NLP, LLM models into production environments with a focus on reliability and scalability. Own the full model lifecycle - from experimentation and offline evaluation through serving, monitoring, and iterative improvement in production.

* Integrate data science solutions into current business processes.

* Develop and recommend process standards and best practices in Machine Learning as applicable to the retail industry.

* Spearhead collaborations with other senior team members and stakeholders, leveraging your data science expertise to drive strategic decision-making and optimize business operations

* Promote and support company policies, procedures, mission, values, and standards of ethics and integrity.

What you'll bring:

* Qualifications:

PhD with 3 years of relevant experience / 4-year bachelor's degree with  6 years of experience / Master's degree with  4 years of experience. Educational qualifications should be preferably in Computer Science or a strongly quantitative discipline.

* Demonstrated history of strong hands-on experience in AI/ML modeling

* Hands-on experience with Generative AI technologies: LLMs, multimodal models, RAG architectures, prompt engineering, and fine-tuning (LoRA/QLoRA)

* Prior Experience in building GenAI, DL, Vision-based models.

* Strong foundation in classical ML, deep learning, and modern architectures - CNNs, Transformers, and domain-specific variants

* Proactive in tracking the latest AI/ML research and translating advancements into production-grade solutions

* Prior Experience in programming skills across data science, statistical analysis, big data and ML stack

* Strong communication skills with inclination to high ownership and commitment

* Proven track record of delivering high-impact AI/ML solutions to Production, including MLOps, Spark, Kubernets, GCP, etc.

Mandatory

Skills:

Machine Learning, NLP, Computer Vision, Deep-learning, Python, GenAI

Additional Qualifications:

Good to have experience in areas such as LLM Optimization. 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.

Walmart's culture is a competitive advantage, and it's fostered by being together. Working together in person allows us to collaborate, align quickly and innovate with greater speed. We use our campuses to create purposeful connection rooted in deepening understanding and investing in the…