{"id":4074284,"url":"https://alion.io/job/walmart-principal-data-scientist-4","title":"PRINCIPAL, DATA SCIENTIST","company":{"id":236,"name":"Walmart","domain":"walmart.com","url":"https://alion.io/company/walmart","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":100,"open_postings":349,"ghost_share":0,"stale_share":0.117,"repost_share":0.003,"time_to_fill_p50_days":5,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Data Science","role_family":"Data Science","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"CUDA","optional":false},{"name":"DeepSpeed","optional":false},{"name":"FSDP","optional":false},{"name":"Google BigQuery","optional":false},{"name":"JAX","optional":false},{"name":"Knowledge Distillation","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"Megatron-LM","optional":false},{"name":"Model Distillation","optional":false},{"name":"Multimodal AI","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"Quantization","optional":false},{"name":"Recommender Systems","optional":false},{"name":"Reinforcement Learning","optional":false},{"name":"Spark","optional":false},{"name":"TensorRT-LLM","optional":false},{"name":"Triton","optional":false},{"name":"Triton Inference Server","optional":false},{"name":"vLLM","optional":false},{"name":"TensorRT","optional":true}],"status":"live","first_seen_at":"2026-11-11T14:49:29Z","employer_posted_date":"2026-11-11","last_verified_at":"2026-11-11T18:38:46Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Position Summary...\nWhat you'll do...\nAbout the Team:\nWe are team of highly skilled engineers owning Data Foundations and Avoid pillar in Customer Care Tech from Bengaluru, India. Team is rightly balanced delivering critical business initiatives at the same time very focused on innovation, engineering and operational excellence. This team is responsible for building an enterprise-scale, AI-powered platform that transforms customer and operational signals into actionable insights to identify defects and improve customer experience. This work enables proactive issue resolution, improved operational efficiency, and progress toward Walmart’s vision of delivering Perfect Orders.\nWhat You'll Do:\nAs a Principal Data Scientist, You will define the problem statements and the solution direction. You'll own the full lifecycle: spotting the highest-leverage bets, getting stakeholders on board, framing the science, and leading execution through data engineering, large-scale training, inference optimization, and production rollout. We'll judge success by what ships and what customers and the business can measure, not by prototypes.\nIdentify problems: Find patterns, problems and root cause for the real reason behind every customer conversation.\nInfluence: Build alignment across product, engineering, business and data science teams in US and India. Change long-held assumptions using evidence.\nFormulate the science: Turn ambiguous business goals into precise objectives, model architectures, loss functions, and evaluation frameworks, both offline and online.\nExecute end to end: Lead data engineering over billions of interactions, large-scale distributed GPU training, and inference optimization (distillation, quantization, caching, custom kernels).\nDrive adoption: Take models through A/B tests into production, measure the business impact, and turn wins into platforms that many teams reuse.\nRaise the bar: Mentor scientists and engineers, lead design and research reviews, and represent Walmart through publications, patents, and open-source work.\nAgent Evaluation Framework: Scalable LLM-as-judge and model-based graders, calibrated against human judgment, with benchmarks specific to retail. Simulated users and environments for multi-turn and tool-using agents, plus automated red-teaming to catch regressions\nFoster Engineering Excellence: Build frameworks, standards, and tools that raise the bar for code quality, reliability, and operational excellence across all teams.\nChampion Innovation: Lead technical explorations, evaluate emerging technologies, and incubate solutions that future-proof our business.\nCultivate a Culture of Collaboration: Partner closely with product, UX, program management, and global engineering teams. Build an environment of psychological safety, learning, and respect for diverse perspectives.\nEnsure Resilience and Security: Embed security, performance, and fault-tolerance into every layer of the stack-from the cloud to the customer’s screen.\nDeliver Business Impact: Own and deliver solutions that move critical business metrics, unlock growth, and create best-in-class digital retail experiences for millions.\nWhat you'll bring:\nBachelor's, Master's, or PhD in Computer Science, Machine Learning, Statistics, Mathematics, or a related field.\n10+ years of experience applying cutting-edge deep learning, with deep expertise in at least two of: Recommender Systems, Language Models, Multimodal Models, Deep Reinforcement Learning.\nExperience building large-scale GPU training and/or inference systems:Hands-on experience with distributed GPU training, including data, tensor, and pipeline parallelism, FSDP/DeepSpeed/Megatron-style frameworks, and mixed precision.\nExperience with low-latency inference serving (e.g. vLLM, TensorRT-LLM, Triton Inference Server) and model compression.\nAble to profile and debug performance across the stack, and to optimize kernels in CUDA and/or Triton.\n\nA track record of taking deep learning models from idea to production at scale, with measurable business impact.\nExpert in Python and PyTorch (or JAX), and comfortable with large-scale data processing (Spark, BigQuery, or similar).\nProven ability to lead through influence: setting technical direction and driving adoption across teams without direct authority.\nAbout Walmart Global Tech\nImagine 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.\nWe 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.\nFlexible Work\nWalmart’s culture sets us apart, and we know being together helps us innovate, learn and grow great careers. This role is based in our Bangalore office for daily work, with the flexibility for associates to manage their personal lives.\nBenefits\nBeyond 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.\nBelonging\nWe 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.\nAt 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.\nMinimum Qualifications...\nOutlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.\nMinimum Qualifications:Option 1: Bachelors degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 5 years' experience in an analytics related field. Option 2: Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 3 years' experience in an analytics related field. Option 3: 7 years' experience in an analytics or related field.Preferred Qualifications...\nOutlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.\nPrimary Location...\nBlock- 1, Prestige Tech Pacific Park, Kadubeesanahalli Village, Varthur Hobli , India","description_format":"text","description_chars":7327,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Flexible schedule","Parental leave"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Marketplaces","Retail & Shop Systems","Online Groceries"],"lifecycle":[{"event":"open","at":"2026-11-11T14:49:29Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":5,"reasons":["conf:0","win:early","comp:brand"],"computed_at":"2026-11-11T19:21:50Z"},"pay":null,"html_url":"https://alion.io/job/walmart-principal-data-scientist-4","json_url":"https://alion.io/job/walmart-principal-data-scientist-4.json","meta":{"generated_at":"2026-11-11T19:21:50Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":37423,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":236},"rest":"https://alion.io/mcp/rest/get_company?id=236"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwalmart-principal-data-scientist-4"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fwalmart-principal-data-scientist-4"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fwalmart-principal-data-scientist-4"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/walmart-principal-data-scientist-4\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwalmart-principal-data-scientist-4"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4074284}},{"tool":"search_jobs","arguments":{"company":"walmart.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4074284},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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