Pay
$118K–$193K is typical
The middle half of what similar US postings state. This one doesn’t list pay.
From 3,721 postings in the last year. Stated ranges, not salaries paid.
Data Scientist (Senior)
Chantilly, VA, United States
Live, first seen by us 29 days ago- Pay
- Pay not listedSimilar roles state $118K–$193K
- Work setting
On-site — work setting source
Work setup in the employer’s posting: On-site
From the employer’s posting- Employment
Full-time — employment source
Employment type in the employer’s posting: Full-time
From the employer’s posting
Before you apply
- Work authorization
- Citizens only
Active in scope TS/SCI w/ Poly
What you’ll work on
Full postingServe as key technical resource for advanced statistical methods
Select ML algorithms and shape enterprise data strategy
From the employer’s posting
serves as a key technical resource for advanced statistical methods
ML algorithm selection, and enterprise data strategy
What you’ll bring
All qualificationsCore experience
- Active TS/SCI with Poly clearance
- Minimum 7+ years of relevant experience
- Experience cleaning and processing large data volumes
- Experience with machine learning and statistical modeling
Preferred experience
- Experience with Hadoop, Spark, or other parallel computing
Qualification wording
Active in scope TS/SCI w/ Poly.
Minimum 7+ years of relevant experience.
Experience with cleaning, managing, optimizing performance with, and processing large volumes of data.
Experience with machine learning, statistical modeling, time-series forecasting, and/or geospatial analytics.
Experience with Hadoop, Spark, or other parallel storage/computing processes.
Posting record
Report an error- Status in our records
- Live
- First seen by us
- Oct 6, 202629 days ago
- Recorded sightings
- 58
- Last seen by us
- Nov 4, 2026
These dates show when we found the posting. Check the employer’s website to confirm it is still accepting applications.
How this job compares
Time since we first saw it
Day 29
Similar jobs usually come down between day 7 and day 55.
From 9,971 similar postings that came down. Coming down is not always a hire.
SOSi is hiring
30 open jobs
Open jobs by the week we first saw them, last 12 weeks.
- Data Scientist hiring is picking up
- Takes jobs down at a usual pace
- 13% of open jobs were reposted
See how this role fits your experience
Add your resume and we’ll mark which of these tools you already use, and point out anything in the posting that could rule you out.
- Python
- R
- SQL
- Hadoop
- PostgreSQL
- Spark
Where the posting names them
- Minimum 7+ years of relevant experience. - Proficiency with major data science tools and languages such as PostgreSQL/SQL, Python, R, NiFi, and Git. - Experience with cleaning, managing, optimizing performance with, and processing large volumes of data.
- Experience with machine learning, statistical modeling, time-series forecasting, and/or geospatial analytics. - Experience with Hadoop, Spark, or other parallel storage/computing processes. - Experience providing services to develop AI/ML models and weights to facilitate object detection, data triage, search/optimization, inference, and automated discovery and decision making.
Your next step
Complete your application on jobs.smartrecruiters.com. The employer’s form will show what is required.
Applying through SmartRecruiters
- Uploading your resume fills in the application form for you, so check what it filled before you send.
Already applied? Track this application
About the role
We file this job under Data Scientist, by the work the posting describes.
Data scientists use statistics and models to answer harder questions, such as whether a change worked, what demand will look like next quarter, or which customers are likely to leave.
Postings usually ask for Python or R, SQL, statistics, experiment design and common machine learning methods.
Unlike an ML engineer, a data scientist's main output is often an analysis or a first model, not software running inside a product.
US government figures for data scientists
- Median yearly pay, May 2025
- $120,230
- Expected change, 2025 to 2035
- 34.6% more jobsagainst 3.5% for all jobs
Source: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) and Employment Projections (2025 to 2035). Occupation code 15-2051.
Job description
Job Description
*Position is contingent upon contract award*
SOSi is seeking a Data Scientist to support our government customer in Chantilly, VA.
Essential Job Duties
- serves as a key technical resource for advanced statistical methods, ML algorithm selection, and enterprise data strategy.
Qualifications
- Active in scope TS/SCI w/ Poly.
- Minimum 7+ years of relevant experience.
- Proficiency with major data science tools and languages such as PostgreSQL/SQL, Python, R, NiFi, and Git.
- Experience with cleaning, managing, optimizing performance with, and processing large volumes of data.
- Familiarity with industry best practices for software/hardware optimization when processing large data sets.
- Experience with machine learning, statistical modeling, time-series forecasting, and/or geospatial analytics.
- Experience with Hadoop, Spark, or other parallel storage/computing processes.
- Experience providing services to develop AI/ML models and weights to facilitate object detection, data triage, search/optimization, inference, and automated discovery and decision making.
Additional Information
Work Environment
- Normal office conditions.
Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.
Company Description
Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private defense and government solutions business specializing in advanced technology systems and mission support. Its capabilities include data science, software development, network engineering, intelligence, surveillance, and reconnaissance (ISR), and logistics.
Source details
Source notes
Source excerptsSelected passages from the saved posting. Check the full description for conditions and exceptions.
- Pay
No pay amount identified in the saved description.
- Location & working pattern
Chantilly, VA, United States
Working pattern and location restrictions need checking in the full posting.
- Work authorization
No clear work-authorization passage found. Eligibility is unconfirmed.