Senior Data Scientist
$100k - $140kPrometheus Federal Services
Prometheus Federal Services (PFS) is a trusted partner of federal health agencies. We are seeking a Senior Data Scientist to support Department of Veterans Affairs (VA) programs through advanced analytics, predictive modeling, data science, and AI-enabled solutions. This role will focus on transforming complex VA data assets into actionable insights that support operational decision-making, healthcare outcomes, data modernization initiatives, and enterprise reporting.
The Senior Data Scientist will collaborate with business stakeholders, data engineers, analysts, and program leadership to design, develop, and operationalize advanced analytical solutions. The ideal candidate brings deep expertise in statistical analysis, machine learning, data engineering concepts, and healthcare analytics, along with experience working within complex federal data environments.
Essential Functions & ResponsibilitiesData Science, Advanced Analytics & AI/ML
- Develop and implement advanced analytical models to identify trends, patterns, risks, and opportunities within large and complex datasets.
- Design, build, and deploy machine learning models to support predictive and prescriptive decision-making.
- Apply statistical techniques and data science methodologies to solve complex business and operational challenges.
- Develop forecasting, classification, clustering, anomaly detection, and optimization models to support program objectives.
- Support AI-enabled analytical solutions that improve operational insight, performance measurement, and resource planning.
- Evaluate emerging AI, machine learning, and advanced analytics technologies for applicability within VA environments.
- Develop model monitoring and evaluation frameworks to ensure accuracy, stability, explainability, and performance.
Data Exploration, Preparation & Feature Engineering
- Conduct exploratory data analysis (EDA) to uncover patterns, anomalies, and key business drivers.
- Perform data profiling and quality assessments to identify issues impacting analytical outcomes.
- Develop feature engineering strategies to improve model performance and business relevance.
- Prepare and transform structured and semi-structured datasets for advanced analytical applications.
- Collaborate with data engineering teams to establish scalable analytical datasets and model-ready data pipelines.
Data Integration, Engineering & Architecture Collaboration
- Partner with data engineers and architects to integrate data across diverse VA systems, databases, APIs, and enterprise platforms.
- Support the design and optimization of data pipelines and analytical workflows.
- Contribute to data modeling efforts that improve accessibility, scalability, and performance of analytical solutions.
- Assist in developing reusable analytical frameworks and data science assets across programs.
- Ensure analytical solutions align with data governance, security, and compliance requirements.
Business Partnership, Strategy & Communication
- Translate business questions, policy objectives, and operational needs into analytical approaches and measurable outcomes.
- Present analytical findings, model outputs, and recommendations to technical and non-technical stakeholders.
- Develop executive-level briefings, data visualizations, and decision-support materials.
- Partner with program leadership to identify opportunities to transition from descriptive reporting to predictive and prescriptive analytics.
- Communicate model assumptions, limitations, and risks to stakeholders in a clear and understandable manner.
Governance, Documentation & Continuous Improvement
- Develop and maintain documentation for analytical methods, models, data sources, assumptions, and validation procedures.
- Support analytical governance and best practices related to model lifecycle management and reproducibility.
- Participate in peer reviews and quality assurance activities for analytical products.
- Continuously evaluate new methodologies and technologies to improve analytical capabilities and program outcomes.
- Mentor junior data scientists, analysts, and technical team members.
- Bachelor's degree in Data Science, Statistics, Computer Science, Applied Mathematics, Operations Research, Engineering, Healthcare Informatics, or a related field.
- 7–10 years of experience in data science, advanced analytics, machine learning, or related technical roles.
- Strong proficiency in Python for data science and machine learning applications (e.g., pandas, NumPy, scikit-learn, TensorFlow, PyTorch, or similar).
- Advanced knowledge of statistical methods, predictive modeling, and machine learning techniques.
- Strong proficiency in SQL for data extraction, transformation, and analysis.
- Experience developing and validating machine learning models, including classification, regression, clustering, forecasting, and anomaly detection.
- Experience conducting exploratory data analysis and communicating insights to diverse audiences.
- Familiarity with model evaluation techniques, performance metrics, and validation methodologies.
- Experience working with large-scale structured and semi-structured datasets.
- Understanding of data engineering concepts, including ETL/ELT processes, data pipelines, and cloud-based data platforms.
- Strong problem-solving, critical thinking, and analytical skills.
- Excellent written and verbal communication skills.
- Authorized to work in the U.S. indefinitely without sponsorship.
- Ability to obtain a Public Trust clearance.
- Master's degree or PhD in Data Science, Statistics, Computer Science, Applied Mathematics, Operations Research, Engineering, Healthcare Informatics, or a related discipline.
- Experience supporting the Department of Veterans Affairs (VA), Veterans Health Administration (VHA), or other federal healthcare agencies.
- Experience working with healthcare, clinical, claims, operational, or population health datasets.
- Experience with cloud-based analytics platforms such as Azure Synapse, Azure Machine Learning, Databricks, AWS, or comparable environments.
- Familiarity with Power BI, Tableau, or other business intelligence and visualization platforms.
- Experience supporting enterprise data modernization, governance, or digital transformation initiatives.
- Experience developing explainable AI (XAI) and responsible AI solutions in regulated environments.
- Experience mentoring and leading technical teams or analytical workstreams.
Compensation & Benefits
PFS offers a benefits package that may include health, dental, and vision coverage; flexible spending accounts; disability and life insurance; a retirement plan; paid time off; and other programs to support employees and their families. Learn more about PFS Benefits.
The posted salary range is the company’s good-faith estimate for this role. PFS benefits and compensation are determined by various factors, including, but not limited to, location; the individual's particular combination of education, knowledge, skills, competencies, and experience; as well as contract and organizational requirements. Salary Range: $100,000 - $140,000Equal Employment Opportunity
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, parental status, national origin, age, disability, genetic information, political affiliation, military service, or other status protected by law.
Accommodations
PFS is committed to providing equal employment opportunities to all applicants. If you require a reasonable accommodation during the application or interview process, please contact us at View email address on click.appcast.io. Reasonable accommodations are available to ensure applicants with disabilities have equal access to the hiring process, in accordance with the Americans with Disabilities Act (ADA) and applicable laws.
Workplace Health, Safety, and Compliance
This position may be subject to client‑specific or government‑mandated vaccination, health, or safety requirements, which may change over time.
Texting Privacy Policy and Information:
- Message type: Informational; you will receive text messages regarding your application and potentially regarding interview scheduling.
- No mobile information will be shared with third parties/affiliates for marketing/promotional purposes.
- Message frequency will vary depending on the application process.
- Msg & data rates may apply.
- Opt out at any time by texting "stop".
- ...MANTECH seeks a motivated, career and customer-oriented Senior GEOINT Data Scientist to join our team in Springfield, VA ! The Senior GEOINT Data Scientist will leverage their strong technical background and knowledge to support critical data environments, to...SeniorWork at office
$90 - $95 per hour
Position: Data Scientist SeniorLocation: McLean, VirginiaDuration: ContractJob ID: 179084Job Overview: We are seeking a highly skilled and experienced Data Scientist Senior to join our team. The ideal candidate will have a strong background in data analysis, machine learning...SeniorFull time$82.1k - $172.4k
Job Title: Senior Data ScientistJob Category: ScienceTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee... ..., and document methodologies. Mentor mid-level data scientists and promote analytic best practices across the program. Qualifications...SeniorContract workWork experience placementFlexible hours$99k - $225k
Data Scientist, SeniorThe Opportunity:As a data scientist, you’re excited at the prospect of unlocking the secrets held by a data set, and you’re fascinated by the possibilities presented by IoT, machine learning, and artificial intelligence. In an increasingly connected...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work$99k - $225k
Data Scientist, SeniorThe Opportunity: As a data scientist, you’re excited at the prospect of unlocking the secrets held by a data set, and you’re fascinated by the possibilities presented by IoT, machine learning, and artificial intelligence (AI). In an increasingly connected...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work$148.5k - $223.9k
...future of AI, and you are the future of Salesforce.The TeamThe Data Science & Analytics team in Salesforce Cyber Security Operations Center seeks an experienced, driven, and creative Senior Data Scientist to join the team. We explore, invent, build and scale new ways to...SeniorFull time- ...make, then choose MITRE - and make a difference with us.MITRE’s Data Science and Engineering department is looking for qualified... ...Responsibilities:The successful candidate for this position is a hybrid Data Scientist and Data Engineer who combines strong foundations in computer...SeniorInternshipLocal area
$146.2k - $228.4k
ResponsibilitiesNoblis is seeking a fully cleared Data Scientist with a TS/SCI and a Polygraph to join our team in Reston, Virginia! As a Data Scientist, you will support the intelligence community by developing innovative, data-driven solutions to address mission-critical...SeniorFull timeContract workPart timeLocal areaRemote work$112.2k - $196.4k
...culture that empowers you to achieve your full potential. Unleash your talent and redefine what’s possible.Job Description:The Data Analysis - Senior, leads the integration and application of advanced data analytics to solve complex business challenges and enhance mission...SeniorFull timeFor contractorsRemote workFlexible hours- ...Data Scientist - Senior Springfield, Virginia, United States Data Scientist - Senior Location: Springfield, VA TS/SCI REQUIRED Current CI polygraph is required immediately after starting (or already within scope) Position Responsibilities:...SeniorImmediate start
- ...Peraton is seeking an experienced Data Scientist/Developer to join our Federal Strategic Cyber program. Location: Remote work allowed 100%; on-site as needed. Position requires Top Secret/SCI eligibility and US citizenship. The role focuses on designing and maintaining...SeniorRemote work
- ...Senior Data Scientist An ideal candidate will have a BS and MS in a Data Science related field and at least five years of related professional experience. The position is on a team working to improve GEOINT collection methods. Please note: This position...SeniorRemote work
$120k - $150k
...Job Name: Data Scientist Level : Senior Location: Springfield, VA (NCE) Remote Work: No Required Clearance: TS/SCI Position Type: Immediately Available Shift: Shift 1 Office Supported: Analysis Office REQUIRED QUALIFICATIONS: Requires...SeniorFull timeContract workWork at officeImmediate startRemote workFlexible hoursShift work- ...Senior Data Scientist KIBO is a registered United States company dedicated to providing governments worldwide its services of inspection, analysis, certification, and compliance. The Senior Data Scientist owns the analytics engine behind KIBO's service — the price...SeniorWorldwide
$115k - $150k
...excited to be part of a team that's leading the way in AI-powered collaboration, we'd love to meet you. We are looking for a Data Scientist who can help us move beyond using AI only as a coding assistant and toward using AI to design, build, evaluate, and improve AI...SeniorWork at officeWorldwide- ...Principal Data Scientist (GenAI) – McLean, VA 22102, 5 days onsite a week. Duration: 06 Months (Possible Extensions) Employment type: Contract Seniority level: Mid-Senior level Job Description We are seeking a highly experienced Principal Gen AI Scientist with a strong...SeniorContract work
$154.05k - $278.48k
...Description Leidos is seeking a Senior Data Scientist to provide technical leadership and advanced analytics expertise in support of mission-critical national security programs. This role supports customers operating in classified environments and requires close...SeniorLocal areaImmediate start- ...Senior Data Scientist What Impact You'll Have: We are looking for a Senior Data Scientist, with experience processing and analyzing large datasets, who will use their technical knowledge, experience, and customer-centric focus to create and deliver world-class analytic...Senior
$100k - $150k
...ECS is searching for an exceptional Senior Data Scientist for multiple locations to join our mission-critical team supporting our government customer in Sneads Ferry, NC or Northern VA . This isn't just another data science role-it's an opportunity to transform raw...SeniorFor contractorsImmediate start$170k
...Senior Data Scientist Springfield, United States Up to $170,000/ year Data Scientist Data Analyst Data Engineer Machine Learning Engineer Artificial Intelligence Engineer Security clearance: Currently holds Top Secret/Sensitive Compartmented Information (TS/SCI...SeniorFor contractorsWork at office- ...Celestar Corporation is seeking a Senior Analytic Methodologist (OBI) to support the Defense Intelligence Agency (DIA) under the Object... ...information, deconstructs key questions, suggests methodologies, develops data schema to structured observations, and supports visualization of...SeniorLocal area
$130k - $150k
...What Impact You'll Have: We are seeking a Senior Data Scientist to support mission-driven analytic and modernization efforts across the Intelligence Community. This role will leverage advanced analytics, automation, data modeling, visualization, and scripting capabilities...SeniorContract workImmediate start- Provide analytical insight from organizational data to support mission critical decision making. Understand business needs and identify... ...relationships with team members, subject matter experts, and senior leadersResearch and apply new best practices and ethical AIAdvise...SeniorInternshipMonday to Friday
- ...Data Scientist - Senior TULK is a leading boutique consulting firm providing technology and management consulting services to the U.S. Federal Government. Our expert team supports Defense, Intelligence Community, and National Security customers by helping them acquire...SeniorWork at officeMonday to Friday
- ...Data Scientist Senior Location: McLean, Virginia (Onsite) Role Overview We are seeking a hands-on Data Scientist with strong Python and Computer Vision skills. The role involves designing, building, testing, and operationalizing capabilities that convert image...Senior
$125k - $145k
...Description Senior Data Scientist AArete is one-of-a-kind when it comes to consulting firm culture. We're a global, innovative management and technology consulting firm with offices in the U.S. and India. Our name comes from the Greek word for excellence: "Arete." And...SeniorTemporary workWork experience placementWork at officeFlexible hours$145.56k
...Senior Data Scientist Job Locations US Job ID 2026-2198 # of Openings 1 Overview The Senior Data Scientist is a senior technical leader responsible for executing and advancing the advanced analytics, machine learning, and AI strategy across the organization. This role...SeniorContract workWork experience placementFlexible hours$146k - $234k
...Responsibilities Senior Data Analyst / Data Scientist – SITE III BES Program Peraton’s National Programs Business Intelligence Systems & Applications Operating Unit is seeking an experienced Senior Data Analyst/Scientist to join the mission-driven SITE III BES team. In...SeniorContract workShift work- TENICA is looking to hire a Senior Data Scientist in Springfield, VA. MUST HAVE TS/SCI with CI poly. Develop and conduct algorithm quality trade studies related to synthetic aperture radar imagery, identifying best use cases for selected algorithms, and characterizing...SeniorWork experience placementRemote work
- ...individual with deep technical knowledge and strong analytical skills in Identity and Access Management (IAM) to join our team as a Senior Principal Information Engineer. This is a full-time remote role with minimal travel requirements.This Senior Principal Information...SeniorFull timeFor contractorsRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Data Scientist. Be the first to apply!
- python data scientist Fairfax, VA
- junior data scientist remote Fairfax, VA
- senior data scientist Fairfax, VA
- data scientist Fairfax, VA
- energy data scientist Fairfax, VA
- entry level data scientist remote Fairfax, VA
- healthcare data scientist Fairfax, VA
- python data scientist (contract) Fairfax, VA
- data scientist (hedge fund) Fairfax, VA
- senior dynamics crm developer Fairfax, VA



