Data Scientist III
$135K - $180K/yr
Data Scientist III Chantilly, VA (on-site at client facility) Full-Time, Long-Term Contract (1-Year Assignment, Temp-to-Perm Possible) Clearance Required: Active TS/SCI with Polygraph (Required ...
Quick apply
$135K - $180K/yr
Data Scientist III Chantilly, VA (on-site at client facility) Full-Time, Long-Term Contract (1-Year Assignment, Temp-to-Perm Possible) Clearance Required: Active TS/SCI with Polygraph (Required ...
Quick apply
$135K - $180K/yr
Data Scientist III Chantilly, VA (on-site at client facility) Full-Time, Long-Term Contract (1-Year Assignment, Temp-to-Perm Possible) Clearance Required: Active TS/SCI with Polygraph (Required ...
Vienna, VA · On-site
Contract Qualifications 3-7 years of experience (mid-level) in data science, statistics, and data analytics Ability to work with moderate to minimal supervision Strong programming abilities in SQL ...
New
Vienna, VA · On-site
Contract Qualifications 3-7 years of experience (mid-level) in data science, statistics, and data analytics Ability to work with moderate to minimal supervision Strong programming abilities in SQL ...
New
Alexandria, VA · On-site
$116K - $174K/yr
Project Summary AIS is seeking a Data Scientist for an AI Engineering contract supporting a federal customer onsite in Alexandria, VA. Key Responsibilities * The Data Scientist will help develop and ...
Alexandria, VA · On-site
$116K - $174K/yr
Project Summary AIS is seeking a Data Scientist for an AI Engineering contract supporting a federal customer onsite in Alexandria, VA. Key Responsibilities * The Data Scientist will help develop and ...
Alexandria, VA · On-site
$116K - $174K/yr
Project Summary AIS is seeking a Data Scientist for an AI Engineering contract supporting a federal customer onsite in Alexandria, VA. Key Responsibilities * The Data Scientist will help develop and ...
Alexandria, VA · On-site
$116K - $174K/yr
Project Summary AIS is seeking a Data Scientist for an AI Engineering contract supporting a federal customer onsite in Alexandria, VA. Key Responsibilities * The Data Scientist will help develop and ...
Brillient is seeking an experienced Data Scientist to join our team supporting a federal contract in Silver Spring, MD. This position requires U.S. Citizenship or a permanent resident and the ability ...
Brillient is seeking an experienced Data Scientist to join our team supporting a federal contract in Silver Spring, MD. This position requires U.S. Citizenship or a permanent resident and the ability ...
Mclean, VA · Hybrid
Outside of contract work, TRSS Data Scientists contribute to internal innovation by participating in research and development (R&D),developingandmaintaining shared capabilities, strengthening ...
Mclean, VA · Hybrid
Outside of contract work, TRSS Data Scientists contribute to internal innovation by participating in research and development (R&D),developingandmaintaining shared capabilities, strengthening ...
Alexandria, VA · On-site
$116 - $174/hr
Project Summary AIS is seeking a Data Scientist for an AI Engineering contract supporting a federal customer onsite in Alexandria, VA. Key Responsibilities The Data Scientist will help develop and ...
Alexandria, VA · On-site
$116 - $174/hr
Project Summary AIS is seeking a Data Scientist for an AI Engineering contract supporting a federal customer onsite in Alexandria, VA. Key Responsibilities The Data Scientist will help develop and ...
Vienna, VA · On-site
Vienna, VA (hybrid) Duration: 06+ months contract Description: Hybrid - Vienna - 3x a week in the office Data science department is dedicated to building predictive solutions for our mobile ...
New
Vienna, VA · On-site
Vienna, VA (hybrid) Duration: 06+ months contract Description: Hybrid - Vienna - 3x a week in the office Data science department is dedicated to building predictive solutions for our mobile ...
New
Mclean, VA · On-site
Outside of contract work, TRSS Data Scientists contribute to internal innovation by participating in research and development (R&D), developing and maintaining shared capabilities, strengthening ...
Mclean, VA · On-site
Outside of contract work, TRSS Data Scientists contribute to internal innovation by participating in research and development (R&D), developing and maintaining shared capabilities, strengthening ...
Mclean, VA · Hybrid
Outside of contract work, TRSS Data Scientists contribute to internal innovation by participating in research and development (R&D), developing and maintaining shared capabilities, strengthening ...
Mclean, VA · Hybrid
Outside of contract work, TRSS Data Scientists contribute to internal innovation by participating in research and development (R&D), developing and maintaining shared capabilities, strengthening ...
Mclean, VA · On-site
Outside of contract work, TRSS Data Scientists contribute to internal innovation by participating in research and development (R&D), developing and maintaining shared capabilities, strengthening ...
Mclean, VA · On-site
Outside of contract work, TRSS Data Scientists contribute to internal innovation by participating in research and development (R&D), developing and maintaining shared capabilities, strengthening ...
Herndon, VA · On-site
Altus Consulting is seeking a talented Data Scientist to join our team and drive data-driven ... However, it is not intended to be a contract, and we reserve the right to modify the at any time.
Herndon, VA · On-site
Altus Consulting is seeking a talented Data Scientist to join our team and drive data-driven ... However, it is not intended to be a contract, and we reserve the right to modify the at any time.
Herndon, VA · On-site
$100K - $200K/yr
Altus Consulting is seeking a talented Data Scientist to join our team and drive data-driven ... However, it is not intended to be a contract, and we reserve the right to modify the at any time.
Quick apply
Herndon, VA · On-site
$100K - $200K/yr
Altus Consulting is seeking a talented Data Scientist to join our team and drive data-driven ... However, it is not intended to be a contract, and we reserve the right to modify the at any time.
Herndon, VA · On-site
$100K - $200K/yr
Altus Consulting is seeking a talented Data Scientist to join our team and drive data-driven ... However, it is not intended to be a contract, and we reserve the right to modify the at any time.
Herndon, VA · On-site
$100K - $200K/yr
Altus Consulting is seeking a talented Data Scientist to join our team and drive data-driven ... However, it is not intended to be a contract, and we reserve the right to modify the at any time.
Washington, DC · On-site
$75K - $158K/yr
Job Title: Data Scientist Job Category: Information Technology Time Type: Full time Minimum ... and contract wage rates, relevant prior work experience, specific skills and competencies ...
Washington, DC · On-site
$75K - $158K/yr
Job Title: Data Scientist Job Category: Information Technology Time Type: Full time Minimum ... and contract wage rates, relevant prior work experience, specific skills and competencies ...
Merrifield, VA · On-site
Data Scientist Location: Merrifield, VA(Hybrid) Duration: 12 Months Contract Responsibilities: * Advanced skill in descriptive, predictive, and prescriptive analytics and modeling; demonstrated ...
Merrifield, VA · On-site
Data Scientist Location: Merrifield, VA(Hybrid) Duration: 12 Months Contract Responsibilities: * Advanced skill in descriptive, predictive, and prescriptive analytics and modeling; demonstrated ...
Fort Belvoir, VA · On-site
$75K - $158K/yr
Job Title: Data Scientist Job Category: Information Technology Time Type: Full time Minimum ... and contract wage rates, relevant prior work experience, specific skills and competencies ...
Fort Belvoir, VA · On-site
$75K - $158K/yr
Job Title: Data Scientist Job Category: Information Technology Time Type: Full time Minimum ... and contract wage rates, relevant prior work experience, specific skills and competencies ...
Fort Belvoir, VA · On-site
$75K - $158K/yr
Job Title: Data Scientist Job Category: Information Technology Time Type: Full time Minimum ... and contract wage rates, relevant prior work experience, specific skills and competencies ...
Fort Belvoir, VA · On-site
$75K - $158K/yr
Job Title: Data Scientist Job Category: Information Technology Time Type: Full time Minimum ... and contract wage rates, relevant prior work experience, specific skills and competencies ...
Arlington, VA · On-site +1
Data Scientist About the Organization Now is a great time to join Redhorse Corporation. Our mission ... This is not a contract and may be adjusted as deemed appropriate in Redhorse's sole discretion. EOE ...
Arlington, VA · On-site +1
Data Scientist About the Organization Now is a great time to join Redhorse Corporation. Our mission ... This is not a contract and may be adjusted as deemed appropriate in Redhorse's sole discretion. EOE ...
$150K - $250K/yr
What You'll be Owning GRVTY is seeking a Data Scientist with a TS/SCI + Poly clearance (applicable ... federal contract labor categories, wage rates, prior experience, skillsets, education, and ...
$150K - $250K/yr
What You'll be Owning GRVTY is seeking a Data Scientist with a TS/SCI + Poly clearance (applicable ... federal contract labor categories, wage rates, prior experience, skillsets, education, and ...
$39K - $54.1K
2% of jobs
$54.1K - $69.1K
3% of jobs
$69.1K - $84.1K
6% of jobs
$84.1K - $99.2K
9% of jobs
$104K is the 25th percentile. Wages below this are outliers.
$99.2K - $114.2K
15% of jobs
The median wage is $124.2K / yr.
$114.2K - $129.2K
22% of jobs
$137.5K is the 75th percentile. Wages above this are outliers.
$129.2K - $144.3K
32% of jobs
$144.3K - $159.3K
3% of jobs
$159.3K - $174.4K
4% of jobs
$174.4K - $189.4K
1% of jobs
$189.4K - $204.4K
2% of jobs
$39K
$127.7K
$204.4K
As a contract data scientist, your job is to provide independent support to a client for a freelance project or assignment. In this role, you may analyze a database to obtain useful information, use statistics to interpret the results, help identify trends within the industry, and make recommendations about the best course of action. Contract data scientists often help analyze historical data, build or refine templates and dashboards, assist full-time employees, and use predictive modeling to evaluate future company needs. The length of each contract varies, but it's possible to work with the same company for a year or more.
| Aspect | Data Scientist Contract | Data Analyst Contract |
|---|---|---|
| Required Credentials | Bachelor's/Master's in Data Science, Statistics, or related fields; experience with machine learning | Bachelor's in Statistics, Mathematics, or related fields; proficiency in data visualization and SQL |
| Work Environment | Advanced analytics, predictive modeling, machine learning projects | Data cleaning, reporting, data visualization tasks |
| Employer & Industry Usage | Tech companies, finance, healthcare, consulting | Retail, marketing, finance, government agencies |
Data Scientist Contract roles focus on advanced analytics and machine learning, requiring higher-level skills and credentials. Data Analyst Contract positions involve data reporting and visualization, often with less emphasis on predictive modeling. Both roles are common in various industries, but they differ in complexity and scope.
The most popular types of Data Scientist jobs in Reston, VA are:
For Data Scientist Contract jobs in Reston, VA, the most frequently searched job titles are:
The top searched job categories for Data Scientist Contract jobs in Reston, VA are:
Cities near Reston, VA with the most Data Scientist Contract job openings:

Collect, organize, and analyze technical information from multiple sources to support mission objectives and quick-turn tasks.
Design and implement machine learning and data engineering techniques applied to advanced S&T missions.
Propose, develop, and execute creative data science solutions, including new data sources and data exploitation techniques.
Data Scientist III
Chantilly, VA (on-site at client facility)
Full-Time, Long-Term Contract (1-Year Assignment, Temp-to-Perm Possible)
Clearance Required: Active TS/SCI with Polygraph (Required — must be a U.S. Citizen)
Job Summary
We are seeking a Data Scientist III to support a mission-critical program in the Chantilly, VA area. This role focuses on applying data science, machine learning, and data engineering techniques to advanced science and technology (S&T) mission challenges. The ideal candidate is technically curious, comfortable working across diverse and multi-source data, and skilled at turning complex data into actionable insight.
Responsibilities
- Collect, organize, and analyze technical information from multiple sources to drive mission objectives and quick-turn tasks in fast-paced environments
- Aid in the design and implementation of machine learning and data engineering techniques applied to advanced S&T missions
- Apply technical proficiency in data collection and analysis tools to S&T mission areas, improving existing techniques and devising new ones to solve mission-critical data science challenges
- Collaborate in a multi-disciplinary environment while working independently and leading tasks on time and on budget
- Independently propose, develop, and execute creative solutions to unique data science problems, including suggestions for new data sources and data exploitation techniques
- Deliver thorough, polished work products requiring only minor revision
- Proactively manage expectations and meet deadlines in a fast-moving, agile environment
- Maintain excellent communication with both co-located and geographically dispersed team members
Required Qualifications
- Experience using tools for collecting, assembling, interpreting, translating, and analyzing multi-source data (S&T information, network, open source, databases) and synthesizing it into actionable intelligence
- Experience applying machine learning, statistics, and/or data mining techniques to gain insights from data
- Experience automating data pipelining processes, data transformation, databases, and/or repositories
- Experience assessing and technically reporting on technologies and scientific topics (e.g., Technology Readiness Levels (TRL) and Critical Technology Elements (CTE))
- Experience working with diverse media and advanced S&T data
- BS with 8+ years of relevant experience; MS with 5+ years of relevant experience; PhD in a relevant field with 3+ years of experience; or an equivalent combination of education and experience in a relevant field
- Genuine excitement for learning new technical subject areas and curiosity about S&T missions
- Experience supporting national security, defense, and/or intelligence community missions
- Must be a U.S. Citizen with an active TS/SCI clearance with polygraph (non-negotiable)
Additional Details
- Assignment Length: 1 year (temp-to-perm possible)
- Schedule: Standard hours (40/week)
- Work Location: On-site required
- Interview Process: Video interview with hiring manager and technical team
- Relocation Candidates: Will consider hiring via video interview for non-local candidates willing to relocate
- Target Start Date: 09/01/2026
Smart Data Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, age, or any other protected characteristic under applicable federal, state, or local law.
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It services
51 - 200 Employees
Miamisburg, OH, US
2006