(USA) Principal Data Scientist
Posted on: February 25, 2021
Position Summary... What you'll do... Data Source
Identification: Understands the priority order of requirements and
service level agreements. Defines and identifies the most
sources for required data that is fit for purpose, referring to
external sources as required. Performs initial data quality checks
on the extracted data.
Reviews the deliverables of junior associates and provides
Data Strategy: Understands, articulates, interprets, and applies
the principles of the defined strategy to unique, moderately
problems that may span one or main functions or domains.
Problem Formulation: Analyzes the business problem within one's
discipline and questions assumptions to help the business identify
the root cause.
Identifies and recommends approach to resolve the business problem.
Sets data analytics, big data analytics, automation goals, and
based on the established success criteria and define key metrics to
measure progress and effectiveness of the solution. Quantifies
Analytical Modeling: Selects appropriate modeling techniques for
complex problems with large scale, multiple structured and
unstructured data sets.
Selects and develops variables and features iteratively based on
model responses in collaboration with the business. Conducts
analysis activities (for example, basic statistical analysis,
hypothesis testing, statistical inferences) on available data.
Identifies dimensions and
designs of experiments and creates test and learn frameworks.
Interprets data to identify trends to go across future data sets.
online model learning along with iterative model enhancements.
Develops newer techniques (for example, advanced machine learning
auto ML) by leveraging the latest trends in machine learning,
artificial intelligence to train algorithms to apply models to new
data sets. Guides the
team on feature engineering, experimentation, and advanced modeling
techniques to be used for complex problems with unstructured and
data sets (for example, streaming data, raw text data).
Model Deployment & Scaling: Deploys models to production.
Continuously logs and tracks model behavior once it is deployed
against the defined
metrics. Identifies model parameters which may need modifications
depending on scale of deployment.
Code Development & Testing: Writes code to develop the required
solution and application features by determining the appropriate
language and leveraging business, technical, and data requirements.
Creates test cases to review and validate the proposed solution
proofs of concept. Tests the code using the appropriate testing
approach. Deploys software to production servers. Contributes code
maintains playbooks, and provides timely progress updates.
Applied Business Acumen: Evaluates proposed business cases for
projects and initiatives. Influences business stakeholder decision
Translate business requirements into strategies, initiatives, and
projects and aligns them to business strategy and objectives, and
drives the execution
of deliverables. Builds and articulates the business case and
return on investment and delivers work that has demonstrable value.
business assumptions on topics related to one's domain expertise.
Develops new organization-wide processes and ways of working.
guides others on best practices. Proactively engages in the
external community to build Walmart's brand and learn more about
Model Assessment & Validation: Identifies and reviews model
evaluation metrics based on analytical requirements. Applies
suitable techniques for
model testing and tuning, to assess accuracy, fit, validity, and
robustness. Ensures testing information is documented and
maintained by the team.
Data Visualization: Identifies and recommends the most suitable
visualization tools based on context. Generates appropriate
representations of data and model outcomes. Understands customer
requirements to design appropriate data representation for complex
and drive User Experience designers and User Interface engineers to
build front end applications. Defines application design based on
requirements. Builds compelling stories based on context to
integrate multiple pieces of information into cohesive insights.
Presents to and influences
diverse audiences using the appropriate frameworks and conveys
clear messages through deep business and stakeholder
Customizes communication style based on stakeholders and leverages
relationships to drive behavioral change. Guides and mentors
associates on story types, structures, and techniques based on
Drives the execution of multiple business plans and projects by
identifying customer and operational needs; developing and
plans and priorities; removing barriers and obstacles that impact
performance; providing resources; identifying performance
progress and adjusting performance accordingly; developing
contingency plans; and demonstrating adaptability and supporting
Provides supervision and development opportunities for associates
by selecting and training; mentoring; assigning duties; building a
environment; establishing performance expectations and conducting
regular performance evaluations; providing recognition and rewards;
for success and improvement; and ensuring diversity awareness.
Promotes and supports company policies, procedures, mission,
values, and standards of ethics and integrity by training and
providing direction to
others in their use and application; ensuring compliance with them;
and utilizing and supporting the Open Door Policy.Ensures business
needs are being met by evaluating the ongoing effectiveness of
current plans, programs, and initiatives; consulting with business
partners, managers, co-workers, or other key stakeholders;
soliciting, evaluating, and applying suggestions for improving
efficiency and costeffectiveness; and participating in and
supporting community outreach events. Minimum Qualifications...
Outlined below are the required minimum qualifications for this
position. If none are listed, there are no minimum 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... Outlined below are the optional preferred
qualifications for this position. If none are listed, there are no
preferred qualifications. Data science, machine learning,
optimization models, PhD in Machine Learning, Computer Science,
Information Technology, Operations Research, Statistics, Applied
Mathematics, Econometrics, Publications or active peer reviewer in
related journals or conference, Successful completion of one or
more assessments in Python, Spark, Scala, or R, Using open source
frameworks (for example, scikit learn, tensorflow, torch) About
Walmart At Walmart, we help people save money so they can live
better. This mission serves as the foundation for every decision we
make, from responsible sourcing to sustainability-and everything in
between. As a Walmart associate, you will play an integral role in
shaping the future of retail, tech, merchandising, finance and
hundreds of other industries-all while affecting the lives of
millions of customers all over the world. Here, your work makes an
impact every day. What are you waiting for?
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. All the benefits you need for you and your
- Financial benefits including 401(k), stock purchase plans, life
insurance and more
- Associate discounts in-store and online
- Education assistance for Associate and dependents
- Pay during military service
- Paid Time off - to include vacation, sick, parental
- Short-term and long-term disability for when you can't work
because of injury, illness, or childbirth Eligibility requirements
apply to some benefits and may depend on your job classification
and length of employment. Benefits are subject to change and may be
subject to specific plan or program terms. For information about
benefits and eligibility, see One.Walmart.com/Benefits . Frequently
asked questions On average, how long does it take to fill out an
application? Can I change my application after submitting? How do
you protect my personal information?
Keywords: Walmart, Dallas , (USA) Principal Data Scientist, Other , Dallas, Texas
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