Top 382 Data scientist Jobs in Loudoun County Va

Machine Learning Scientist - AI Trainer
DataAnnotation —Reston, VA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Data Scientist - AI Trainer
DataAnnotation —Sterling, VA
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Senior Quantitative Analyst - AI Trainer
DataAnnotation —Virginia
- $50 - $100 an hour
- Part-time
- Remote
- Computer Science
- English
- Mid-level
- Flexible schedule
Quick Apply
Data Scientist
Quantoknack —Ashburn, VA
- Mid-level
- Analysis skills
- Communication skills
Data Scientist
ISE Data Systems —Reston, VA
- Continuous improvement
- Entry level
- Profit sharing
- Health insurance
Data Scientist
WTAnow —Herndon, VA
- Master's degree
- SQL
- AWS
Data Scientist
VivusTech —Chantilly, VA
- Mid-level
- Bachelor's degree
- Mentoring
Data Scientist
Unissant —Ashburn, VA
- $99,000 - $164,000 a year
- Full-time
- Hybrid work
- Computer Science
- Mid-level
- Office
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5d
AI Data Scientist
Unissant —Ashburn, VA
- $114,000 - $189,000 a year
- Extended hours
- Computer Science
- 5 years
- Office
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Data Scientist - All Levels
Interclypse, Inc. —Reston, VA
- Computer science
- Azure
- Computer Science
- Paid jury duty
- Health savings account
Senior Data Analyst
Softthink Solutions —Leesburg, VA
- Full-time
- Azure
- Mid-level
- Office
Data Scientist: TV Data Products
FourthWall Media —Dulles, VA
- Email
- Computer Science
- Mid-level
- 3 years
Data Scientist/Developer for Big Data/Machine Learning R&D
D-Tech —Herndon, VA
- Computer Science
- Bachelor of Science
- Mid-level
- Paid holidays
- Health insurance
Data Scientist I
Arcfield —Chantilly, VA
- $66,456.39 - $115,554.76 a year
- Full-time
- Computer Science
- Computer literacy
- Bachelor of Science
- Paid holidays
- Disability insurance
2d
Senior Data Scientist
Cvent —Tysons Corner, VA
- $115,000 - $150,000 a year
- Full-time
- Hybrid work
- System design
- Office
- Master's degree
Data Science Engineer
Softthink Solutions —Herndon, VA
- Full-time
- Computer Science
- SQL
- Bachelor's degree
Senior Data Analyst/Scientist
Unacast —Ashburn, VA
- $110,000 - $130,000 a year
- Full-time
- Remote
- 5 years
- English
- AWS
Quick Apply
Data Scientist
DLA Piper —Reston, VA
- $112,879 - $179,481 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- 5 years
- Health insurance
- Dental insurance
Data Scientist
SteerBridge —Vienna, VA
- $137,000 - $155,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- Mid-level
- Paid holidays
- Health insurance
Quick Apply
Data Scientist
Excelacom —Reston, VA
- $100,000 - $140,000 a year
- Full-time
- Research
- 3 years
- Master's degree
- AD&D insurance
- Health insurance

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data scientist jobs near loudoun county va

Machine Learning Scientist - AI Trainer

DataAnnotation -
Reston, 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 Machine Learning 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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data scientist jobs in loudoun county va

Machine Learning Scientist - AI Trainer

Data Scientist - AI Trainer

Senior Quantitative Analyst - AI Trainer

Data Scientist

Data Scientist

Data Scientist

Data Scientist

Data Scientist

AI Data Scientist

Data Scientist - All Levels

Senior Data Analyst

Data Scientist: TV Data Products

Data Scientist/Developer for Big Data/Machine Learning R&D

Data Scientist I

Senior Data Scientist

Data Science Engineer

Senior Data Analyst/Scientist

Data Scientist

Data Scientist

Data Scientist

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