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Senior Python Data Science Jobs (NOW HIRING)

Nalley Consulting

Data Scientist - Sr

Arlington, VA · On-site

Data Scientist LCAT: Sr Location: Pentagon Shift: No Required clearance: Active TS/SCI clearance ... Experience with Python data science and visualization packages * Experience with Excel MBA * ...

InterImage

Senior Python Developer

Laurel, MD

$120K - $162K/yr

Senior Python Developer Your Main Objective: Develop analytics for Customized and Do-it-Yourself ... Data Science methodologies Knowledge of Jupyter Notebooks Familiar with Tradecraft Suite and ...

Deloitte

Senior Python Developer

Princeton, NJ · Hybrid

$127K - $171K/yr

Knowledge of Apache Spark and distributed data processing concepts or supporting Spark applications ... Bachelor's degree, preferably in Computer Science, Information Technology, Computer Engineering, or ...

Deloitte

Senior Python Developer

Jersey City, NJ · Hybrid

$126K - $170K/yr

Knowledge of Apache Spark and distributed data processing concepts or supporting Spark applications ... Bachelor's degree, preferably in Computer Science, Information Technology, Computer Engineering, or ...

Govcio LLC

Senior Data Scientist

Kearneysville, WV · On-site

$133K - $169K/yr

GovCIO is seeking a Senior Data Scientist to support a critical government computer system for the ... science solutions using Python. * Proven experience building and maintaining large-scale data ...

Deloitte

Senior Python Developer

Morristown, NJ · Hybrid

$125K - $168K/yr

Knowledge of Apache Spark and distributed data processing concepts or supporting Spark applications ... Bachelor's degree, preferably in Computer Science, Information Technology, Computer Engineering, or ...

Deloitte

Senior Python Developer

New York, NY · Hybrid

$132K - $178K/yr

Knowledge of Apache Spark and distributed data processing concepts or supporting Spark applications ... Bachelor's degree, preferably in Computer Science, Information Technology, Computer Engineering, or ...

SRP Systems Inc

Senior Python/Spark developer

Princeton, NJ

$127K - $171K/yr

Company Description SRP is a big data company located in Princeton, NJ focused on Dynamic Pricing, run by seasoned alumni from Stanford University and Wharton. Title: Senior Python developer Location:

SRP Systems Inc

Senior Python/Spark developer

Princeton, NJ · On-site

$127K - $171K/yr

Company Description SRP is a big data company located in Princeton, NJ focused on Dynamic Pricing, run by seasoned alumni from Stanford University and Wharton. Title: Senior Python developer Location:

Kanak Elite Services Inc

Data Scientist.

Columbus, OH · On-site

Data Science - 7+ yrs * SAS - 5+ * Python -5+ * SQL * Jupyter, Data Robot preferred * AI tools preferred * BS w/financial svcs or auto industry exp. required Required: • Bachelor's degree (Major in ...

IntelliGenesis

Senior Data Scientist

Boerne, TX · On-site

IntelliGenesis is seeking a Senior Data Scientist to support IG Labs working to answer challenging ... Experience in advanced Python data science packages (Pandas, NetworkX, Scikit-Learn, PyTorch or ...

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How much do senior python data science jobs pay per year?

As of Jul 19, 2026, the average yearly pay for senior python data science in the United States is $141,976.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,500.00 and $163,500.00 per year, depending on experience, location, and employer.

What is the difference between Senior Python Data Science vs Data Analyst?

AspectSenior Python Data ScienceData Analyst
Required SkillsPython, machine learning, statistical analysis, data modelingExcel, SQL, data visualization, basic statistics
Work EnvironmentData science teams, R&D, product developmentBusiness units, reporting, operational analysis
Industry UsageTech, finance, healthcare, e-commerceRetail, marketing, finance, healthcare

Senior Python Data Scientists focus on advanced analytics, machine learning, and building predictive models using Python, often working in R&D or product teams. Data Analysts primarily handle data reporting, visualization, and basic statistical analysis to support business decisions. While both roles require data handling skills, Senior Python Data Science roles demand deeper technical expertise and experience with complex algorithms.

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Senior Python Data Science jobs near you

Data Scientist - Sr

Nalley Consulting

Arlington, VA • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 5 days ago

Job description

Join the Nalley Consulting team as a Data Scientist in metro Washington, D.C.
Position: Data Scientist
LCAT: Sr
Location: Pentagon
Shift: No
Required clearance: Active TS/SCI clearance and CI poly
Required education: Bachelor's degree
Basic Qualifications:
  • Combining multiple date sources into GUI (graphic user interface) and visual and geographical displays.
  • Python and Tableau experience.
  • 7+ years of experience with data exploration, data cleaning, data analysis, data visualization, or data mining
  • 7+ years of experience with analyzing structured and unstructured data sources
  • Experience with statistical and general-purpose programming languages for data analysis
  • Experience with developing predictive data models, quantitative analyses, and visualization of target data sources
  • Experience with leading the development of solutions to complex problems
  • Experience with natural language processing, text mining, or machine learning techniques
  • Experience implementing automation in processing, presenting, or manipulating data
  • Active TS/SCI clearance; willingness to take a polygraph exam
  • Bachelor's degree

Additional Qualifications / Nice to have:
  • Experience in the development of algorithms leveraging Python and SQL
  • Experience with developing solutions incorporating Large Language Models
  • Experience with Python data science and visualization packages
  • Experience with Excel MBA
  • Experience with AC2SP, R, GitHub, and Palantir
  • An active CI polygraph

ABOUT NALLEY CONSULTING
Nalley Consulting is a Service Disabled Veteran Owned Small Business working with prime partners to staff Department of Defense and Intelligence Community positions. Created by a U.S. Navy intelligence veteran, Nalley Consulting has grown to include multiple IDIQ vehicles in several states.
Nalley Consulting fringe benefits include:
  • Excellent medical, dental, and vision benefits
  • PTO
  • 11 paid federal holidays
  • Tuition assistance
  • Paid military-reserve leave
  • Paid parental leave for birth or adoption
  • 401k matching up to 5 percent of the base salary
  • Flex time
  • Company-paid short-term disability, long-term disability, and life insurance.

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