Top 46 Principal data scientist Jobs in Mclean Va

Principal Data Scientist - AI Trainer
DataAnnotation —Chantilly, VA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- 3 years
- Flexible schedule
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Principal Data Scientist - AI Trainer
DataAnnotation —Washington, DC
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- Writing skills
- English
- Flexible schedule
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Principal Applied Scientist - TS/SCI
Vantor Services Inc. —Herndon, VA
- $140,000 - $205,700 a year
- Full-time
- 11+ years
- Master's degree
- Math
- 401(k) matching
- Pet insurance
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Principal Data Scientist - AI Trainer
DataAnnotation —Virginia
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- Writing skills
- English
- Flexible schedule
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Principal Data Scientist - AI Trainer
DataAnnotation —Washington, DC
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- Writing skills
- English
- Flexible schedule
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Principal Associate, Data Scientist - Emerging ML
Information Technology Senior Management Forum —McLean, VA
- $161,800 - $201,400 a year
- Email
- Computer Science
- Office
- 3 years
- Health insurance
Principal Data Scientist
PenFed Credit Union —McLean, VA
- $97,400 - $184,456 a year
- Overtime
- 6 years
- Office
- Master's degree
- Paid parental leave
- Disability insurance
9d
Principal Data Scientist
BULLFROG AI MANAGEMENT LLC —Gaithersburg, MD
- $175,000 - $215,000 a year
- Full-time
- Remote
- Computer Science
- 5 years
- Databases
- Paid holidays
- Disability insurance
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Senior Principal Data Scientist (R-19518)
Dun & Bradstreet —Vienna, VA
- Email
- Hybrid work
- Azure
- Java
- Master's degree
- Paid parental leave
- Health insurance
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Principal Associate, Data Scientist - Emerging ML
Capital One —McLean, VA
- Email
- Computer Science
- Office
- 3 years
- Health insurance
Principal Associate, Data Scientist - AI in Credit
Information Technology Senior Management Forum —McLean, VA
- $147,100 - $201,400 a year
- Email
- Computer Science
- 3 years
- Analysis skills
- Health insurance
Senior Principal, ML/AI
Xometry —North Bethesda, MD
- $150,000 - $196,000 a year
- Hybrid work
- Azure
- Computer Science
- 11+ years
- Disability insurance
- Health insurance
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Principal Data Scientist - Washington, DC office
NORC at the University of Chicago —Washington, DC
- $183,000 - $250,000 a year
- Part-time
- Hybrid work
- Computer science
- Computer Science
- 11+ years
- Paid parental leave
- Paid holidays
5d
Principal AI Developer
Markon —Annapolis Junction, MD
- $120,000 - $200,000 a year
- Full-time
- Java
- Bachelor's degree
- Senior level
- Paid holidays
- Disability insurance
5d
Principal AI Data Scientist
Deltek, Inc. —Herndon, VA
- $109,000 - $192,750 a year
- Call employer
- Remote
- Computer science
- Azure
- Computer Science
- Paid holidays
- Disability insurance
Principal Computer Scientist
Analytic Services Inc —Washington, DC
- $195,000 - $235,000 a year
- Computer science
- Computer Science
- 11+ years
Quick Apply
Principal, Data Scientist - Card Intelligence
Information Technology Senior Management Forum —McLean, VA
- $161,800 - $184,600 a year
- Email
- Computer Science
- Research
- AWS
- Health insurance
Senior Data Analyst Principal
General Dynamics Information Technology —Gaithersburg, MD
- $142,792 - $167,900 a year
- Hybrid work
- Office
- SQL
- Analysis skills
- Paid holidays
- 401(k) matching
Principal Data Scientist
Markon —Annapolis Junction, MD
- $150,000 - $210,000 a year
- Full-time
- Windows
- 3 years
- Master's degree
- Paid holidays
- Disability insurance
Principal Data Scientist, Customer Protection Agentic Claims Data Science
Information Technology Senior Management Forum —McLean, VA
- $161,800 - $184,600 a year
- Email
- Computer Science
- SQL
- AWS
- Health insurance

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principal data scientist jobs near mclean va

Principal Data Scientist - AI Trainer

DataAnnotation -
Chantilly, VA

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Job Details

Part-time | Full-time | Contract
$50 - $100 an hour

Benefits

Flexible schedule

Qualifications

Software coding
Design of experiments
English
Providing code feedback

Full Job Description

DataAnnotation is committed to creating quality AI. Help train AI chatbots while gaining the flexibility of remote work and choosing your own schedule.

We are looking for an existing Principal Data Scientist - AI Trainer to help train AI models. AI models are increasingly capable of performing complex analytical and scientific reasoning — but these systems still need practitioners with real-world quantitative experience to validate whether the outputs actually hold up in practice. That's where you come in.

You'll work closely with state-of-the-art AI models on tasks like evaluating AI-generated quantitative analysis, solving technical problems, and providing feedback that directly shapes how these systems reason about data, models, and scientific problems. Whether your background is in data science, astrophysics, economics, biostatistics, operations research, or any other quantitative field, if you think rigorously about data and models, your skills are directly applicable here. You can fit this work alongside a full-time role, or treat it as your primary focus, choosing projects and schedules that align with your availability and goals.

To get started, once you sign up for an account, you'll take a short assessment (this serves as our version of an interview). If you pass, you'll receive an email confirmation, and paid work will become available on our platform.

Advantages of contracting with us:

Fully remote: work from anywhere in the US, Canada, UK, Ireland, Australia, and New Zealand.
Flexible schedule: choose which projects you take on and when you work, on your own computer, from the comfort of your own home.
Competitive pay: projects are paid hourly at $50 to $100 USD per hour, with bonus rates available on some projects.
Impact: help shape the future of AI systems built to reason about data and analytics.

Responsibilities:

Evaluate AI-generated quantitative work, including statistical analysis, predictive modeling, scientific reasoning, and data-driven insights, for technical accuracy and real-world validity.
Design and solve quantitative problems used to train and benchmark AI systems, spanning areas like forecasting, experimental analysis, optimization, and statistical inference.
Write clear technical explanations and well-documented analytical code.
Provide feedback that directly shapes the next generation of AI models built for quantitative reasoning.

Qualifications:

3+ years of hands-on experience in a quantitative role or research environment — such as data science, statistics, economics, finance, physics, biology, epidemiology, operations research, or any adjacent field.
Some coding experience required, with comfort writing and reviewing analytical code end-to-end.
Practical experience with statistical methods, predictive modeling, and experiment design (e.g., A/B testing, hypothesis testing, regression, classification, time-series forecasting).
Fluency in English (native or bilingual level) with strong writing skills.
A bachelor's degree in a quantitative field preferred (Statistics, Computer Science, Mathematics, Engineering, or similar); an advanced degree (Master’s or PhD) is a plus.
Relevant credentials are a plus (e.g., Kaggle Competition ranking, AWS/GCP ML certifications, or equivalent demonstrated expertise).

Note: Payment is made via PayPal. We will never ask for any money from you. This job is only available to those in the US, Canada, UK, Ireland, Australia, and New Zealand.

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Refine Your Search

principal data scientist jobs in mclean va

Principal Data Scientist - AI Trainer

Principal Data Scientist - AI Trainer

Principal Applied Scientist - TS/SCI

Principal Data Scientist - AI Trainer

Principal Data Scientist - AI Trainer

Principal Associate, Data Scientist - Emerging ML

Principal Data Scientist

Principal Data Scientist

Senior Principal Data Scientist (R-19518)

Principal Associate, Data Scientist - Emerging ML

Principal Associate, Data Scientist - AI in Credit

Senior Principal, ML/AI

Principal Data Scientist - Washington, DC office

Principal AI Developer

Principal AI Data Scientist

Principal Computer Scientist

Principal, Data Scientist - Card Intelligence

Senior Data Analyst Principal

Principal Data Scientist

Principal Data Scientist, Customer Protection Agentic Claims Data Science

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