Top 1540 Data Scientists Jobs in Washington, DC

Principal Data Scientist - AI Trainer
DataAnnotation —Bethesda, MD
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- 3 years
- Flexible schedule
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Machine Learning Scientist - AI Trainer
DataAnnotation —Reston, VA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- 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
Quick Apply
Simulation Engineer - AI Trainer
DataAnnotation —Herndon, VA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
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Data Scientist (Various Levels)
Agile Defense —Fort Meade, MD
- $120,000 - $170,000 a year
- Computer Science
- Office
- Windows
- Paid holidays
- Disability insurance
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Data Scientist
Agile Defense —Washington, DC
- $130,000 - $155,000 a year
- Azure
- Mid-level
- Office
- Paid holidays
- Disability insurance
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Data Scientist
Agile Defense —Falls Church, VA
- Azure
- Mid-level
- Office
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Data Scientist
Agile Defense —Fort Meade, MD
- Azure
- Mid-level
- Office
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Artificial Intelligence Subject Matter Expert (SME)
Agile Defense —Reston, VA
- $160,000 - $200,000 a year
- Hybrid work
- Azure
- Bachelor of Science
- Research
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Applied Research Mathematician / Mathematical Statistician
National Security Agency —Fort Meade, MD
- $87,362 - $172,578 a year
- 8 hour shift
- Computer science
- Doctoral degree
- Computer Science
- On-the-job training
7d
Sr. Data Scientist
Glint Tech Solutions LLC —Reston, VA
- Urgently hiring
- 8 years
- SQL
- Analysis skills
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Applied AI Scientist Architect (Auth0)
Okta —Washington, DC
- $274,000 - $376,200 a year
- Hybrid work
- Computer literacy
- Office
- Doctor of Philosophy
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Computer Scientist - Mid
Cherokee Federal —Reston, VA
- $145,000 - $160,000 a year
- Full-time
- Analysis skills
- Math
- Bachelor's degree
- Health insurance
- Dental insurance
Al/ML Engineer Technical Lead - TS/SCI w Poly
Peraton —Laurel, MD
- $229,000 - $366,000 a year
- Computer science
- Azure
- Computer Science
- Health savings account
- Paid holidays
Senior Data Scientist (TS/SCI cleared)
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $105,000 - $290,000 a year
- Full-time
- Computer Science
- Master's degree
- Analysis skills
- Disability insurance
- Health insurance
GNSS Data Science and Navigation Analyst
Johns Hopkins Applied Physics Laboratory (APL) —Laurel, MD
- $100,000 - $245,000 a year
- Full-time
- Computer Science
- Bachelor of Science
- 8 years
- Disability insurance
- Health insurance
9d
Technical Lead, GenAI & Automation Engineering (Risk Engineering)
Freddie Mac —McLean, VA
- $146,000 - $218,000 a year
- Full-time
- Azure
- Computer Science
- 5 years
Founding AI/ML Engineer
David Joseph & Company —Washington, DC
- $190,000 - $200,000 a year
- Full-time
- Office
- APIs
- Senior level
Quick Apply
Senior Principal Data Scientist (Marketing Channel Optimization)
Navy Federal Credit Union —Vienna, VA
- $150,100 - $206,450 a year
- Online Application
- Computer Science
- Office
- SQL
9d
Expert Consultant, Coro, AI Engineer
Bain & Co. —Washington, DC
- $128,500 - $171,500 a year
- Full-time
- Computer science
- Azure
- Computer Science
- Wellness program
- Paid holidays
Quick Apply

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Data Scientists jobs near Washington, DC

Principal Data Scientist - AI Trainer

DataAnnotation -
Bethesda, MD

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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.

Quick Apply

Refine Your Search

Data Scientists jobs in Washington, DC

Principal Data Scientist - AI Trainer

Machine Learning Scientist - AI Trainer

Principal Data Scientist - AI Trainer

Simulation Engineer - AI Trainer

Data Scientist (Various Levels)

Data Scientist

Data Scientist

Data Scientist

Artificial Intelligence Subject Matter Expert (SME)

Applied Research Mathematician / Mathematical Statistician

Sr. Data Scientist

Applied AI Scientist Architect (Auth0)

Computer Scientist - Mid

Al/ML Engineer Technical Lead - TS/SCI w Poly

Senior Data Scientist (TS/SCI cleared)

GNSS Data Science and Navigation Analyst

Technical Lead, GenAI & Automation Engineering (Risk Engineering)

Founding AI/ML Engineer

Senior Principal Data Scientist (Marketing Channel Optimization)

Expert Consultant, Coro, AI Engineer

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