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Freelance Data Scientist Machine Learning Jobs in Reston, VA

Samprasoft

Principal Data Scientist

Washington, DC · On-site

This senior role demands extensive expertise in data science, machine learning, and industry-specific applications, particularly within the railroad sector. The ideal candidate will have a proven ...

Kaav Inc.

Principal Data Scientist

Washington, DC · On-site

This senior role demands extensive expertise in data science, machine learning, and industry-specific applications, particularly within the railroad sector. The ideal candidate will have a proven ...

KDA Consulting Inc

Data Scientist

Mclean, VA · On-site

Machine Learning & AI Development * Design, develop, and deploy machine learning models to solve complex mission problems * Build predictive and prescriptive analytics solutions to support ...

KDA Consulting Inc

Data Scientist

Chantilly, VA · On-site

Machine Learning & AI Development * Design, develop, and deploy machine learning models to solve complex mission problems * Build predictive and prescriptive analytics solutions to support ...

KDA Consulting Inc

Data Scientist

Chantilly, VA · On-site

Machine Learning & AI Development * Design, develop, and deploy machine learning models to solve complex mission problems * Build predictive and prescriptive analytics solutions to support ...

KDA Consulting Inc

Data Scientist

Herndon, VA · On-site

Machine Learning & AI Development * Design, develop, and deploy machine learning models to solve complex mission problems * Build predictive and prescriptive analytics solutions to support ...

Cmu

Data Scientist

Arlington, VA

Data Scientists at the SEI use advanced statistics, data analytics, machine learning, and artificial intelligence to help our government and industry clients research and solve cybersecurity ...

VTG

Data Scientist

Chantilly, VA · On-site

A Data Scientist represents an effective arbiter of strong technical knowledge and clear ... May use machine learning and statistical approaches based on the analysis of the dataset. May ...

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Freelance Data Scientist Machine Learning information

See Reston, VA salary details

$39K

$127.7K

$204.4K

How much do freelance data scientist machine learning jobs pay per year?

As of May 28, 2026, the average yearly pay for freelance data scientist machine learning in Reston, VA is $127,692.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,500.00 and $141,500.00 per year, depending on experience, location, and employer.

What is the difference between Freelance Data Scientist Machine Learning vs Freelance Data Analyst?

AspectFreelance Data Scientist Machine LearningFreelance Data Analyst
Required SkillsAdvanced statistical analysis, machine learning, programming (Python, R)Data cleaning, visualization, basic statistical analysis
Tools & TechnologiesTensorFlow, scikit-learn, Jupyter, cloud platformsExcel, Tableau, SQL
Work EnvironmentProject-based, consulting, remote or client sitesRemote, freelance consulting, client reports
Industry UsageTech, finance, healthcare, e-commerceMarketing, retail, finance, healthcare

Freelance Data Scientist Machine Learning professionals focus on developing predictive models and algorithms using advanced techniques, often requiring programming and statistical expertise. Freelance Data Analysts handle data interpretation, visualization, and reporting, typically with less technical complexity. Both roles are in high demand but differ in skill level, tools, and project scope.

What are popular job titles related to Freelance Data Scientist Machine Learning jobs in Reston, VA? For Freelance Data Scientist Machine Learning jobs in Reston, VA, the most frequently searched job titles are:
What job categories do people searching Freelance Data Scientist Machine Learning jobs in Reston, VA look for? The top searched job categories for Freelance Data Scientist Machine Learning jobs in Reston, VA are:
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Freelance Data Scientist Machine Learning jobs near you
Sr. Data Scientist / Machine Learning Engineer

Sr. Data Scientist / Machine Learning Engineer

CACI International, Inc.

Reston, VA • On-site

Full-time

Medical, Retirement, PTO

Posted 13 days ago

Job description

Job Title: Sr. Data Scientist / Machine Learning Engineer
Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI with Polygraph
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Outside Continental US
* * *
The Opportunity:
Join CACI as a Data Scientist and Engineer. We are seeking a highly experienced subject matter expert to drive technical innovation, architect advanced data engineering solutions, and implement machine learning models that support our clients' LAN, WAN, and UC services. In this role, you will lead the most complex, high-impact initiatives, solving unique and undefined problems in cybersecurity, compliance, and network modernization. You will establish operational plans with mid-term strategic impact, mentor technical staff across the organization, and present your findings directly to senior and executive leadership. Become a part of our great team and make a strategic difference within the Intelligence Community!
Responsibilities:
  • Employ advanced statistical methods and machine learning techniques to analyze complex datasets, uncovering deep patterns and root causes
  • Architect, build, and maintain robust, end-to-end data pipelines to ensure seamless data collection, integration, and storage
  • Design, develop, and deploy predictive algorithms and automated machine learning models into production environments to optimize network operations
  • Analyze large, unstructured, and undefined data sets to solve unique technical challenges where information is difficult to obtain
  • Lead complex, cross-functional project initiatives to address strategic business needs in cybersecurity, compliance, and network modernization
  • Present highly technical findings and strategic recommendations to senior and executive leadership in a clear and actionable manner
  • Provide expert guidance, coaching, and mentorship to technical staff across the organization to drive the adoption of data-driven practices
  • Conceptualize and implement innovative data products, processes, and standards that establish mid-term operational plans for the broader organization
  • Stay updated on the latest advancements in data engineering architecture, machine learning MLOps, and data science best practices

Qualifications:
Required:
  • Must possess an active TS/SCI security clearance with the ability to obtain a polygraph
  • Bachelor's degree in data science, computer science, statistics, mathematics, engineering, or a related field
  • 10+ years of relevant work experience
  • Must hold a current DoD 8570 IAT Level II certification (e.g., Security+ CE)
  • Proficient understanding of data governance and security best practices
  • Proven proficiency in Python, R, and SQL for advanced data manipulation, pipeline creation, and model development
  • Extensive hands-on experience designing and deploying scalable data architecture, databases, and automated data engineering workflows
  • Deep expertise in machine learning, predictive modeling, data mining techniques, and deploying models into production environments
  • Proven ability to conduct extensive investigations to understand the root cause of undefined problems
  • Experience conceptualizing and communicating with executive leadership regarding matters of significant strategic importance

Desired:
  • Active TS/SCI clearance with polygraph
  • Advanced degree (Master's or Ph.D.) in a highly quantitative or technical field
  • Experience mentoring and directing junior/mid-level data analysts and engineers
  • Familiarity working alongside Business Intelligence SMEs, preparing and formatting optimal data structures for visualization tools like Tableau
  • Exceptional ability to work with high latitude and independence, successfully managing multiple high-stakes projects simultaneously

What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground - in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
Since this position can be worked in more than one location, the range shown is the national average for the position.
The proposed salary range for this position is:
$105,100-$231,100
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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