Data Scientist
$107.9k - $195.05kLeidos
Leidos has a new and exciting opportunity for a Data Scientist in our Intel Sector Analysis Solutions Business Area (ASBA) in McLean, VA. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in Analysis Solutions Business Area!Job Summary:We are looking for a Data Scientist with an entrepreneur’s mindset to support a fast-paced and growing data science team working on projects critical to National Security.Responsibilities Include:Build statistical and machine learning models, conducting natural language processing (NLP), and developing automated solutions for complex business challenges.Construct and execute complex database search queries across multiple databases using SQL and API interfaces.Perform web scraping and apply various techniques for processing unstructured data. Leverage automation and machine learning to manage data, predict scenarios, and make data-driven recommendations.Learn and leverage technologies including AWS and Git.Basic Qualifications:Must have TS/SCI with Polygraph.BS degree and 8 – 12 years relevant technical experience or Master’s with 6 – 10 years of relevant experience. May possess a Doctorate in technical domain.Experience with Python is required.Social network analysis (SNA) experienceStrong SQL skills and experience with relational databases and APIs for data extraction is required.Experience with supervised and unsupervised learning and natural language processing (NLP) is required. Familiarity with NLP libraries and tools (e.g., spaCy, Hugging Face, NLTK, or TensorFlow).Experience with frequentist statistics, probability, and predictive modeling, along with knowledge of computer science concepts, data architecture, and statistical methods.Proficiency with data visualization tools (e.g., Tableau, Plotly, Seaborn, Matplotlib) is required.#ASBAIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.Original Posting:November 5, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.Pay Range:Pay Range $107,900.00 - $195,050.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.SummaryLocation: McLean, VAType: Full time
$98k - $163k
...Job Family : Data Science Consulting Travel Required : None Clearance Required : Ability to Obtain Public Trust What You Will Do : Our consultants on the AI & Data team help clients maximize the value of their data and automate business processes...SuggestedTemporary workFlexible hours- ...Data Science LeaderAir is the leader in Enterprise Readiness. Our mission is to establish readiness as a real-time condition that... ...direction and best practices, and mentor and develop other Data Scientists to build deep expertise and advance the organization's scientific...SuggestedFull timeWork at office
$50 per hour
Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other...SuggestedHourly payFull timeSummer workInternshipSummer internshipWork at officeLocal area- ...candidates will have a strong working knowledge of common workflows for data analysis, data preparation and model development. They must... ...when to apply these tools and techniques. As a Lead Data Scientist at JPMorgan Chase within the Cybersecurity and Technology...Suggested
$150k - $210k
...built and delivered by operating with a product mindset, prioritizing speed, ownership, and execution over bureaucracy. Lead Data Scientist Location: Suitland, MD (Hybrid) Terms: Full-time Clearance/Work Authorization: U.S. Citizenship...SuggestedFull timeFor contractorsWork experience placementFlexible hours- ...- and help shape the future. Department Summary: MITRE's Data Science and Engineering department is looking for qualified applicants... ...The successful candidate for this position is a hybrid Data Scientist and Data Engineer who combines strong foundations in computer...InternshipLocal area3 days per week
$77.6k - $176k
...Job Number: R0252678 Data Engineer, Lead The Opportunity: Are you looking for an opportunity to architect and build enterprise... ..., and cost. Working with mission owners, platform teams, data scientists, and cybersecurity professionals, you'll establish reusable...Full timeContract workPart timeLocal areaRemote work- ...collaboration, and technical excellence. Choose MITRE for a career with purpose - and help shape the future. Department Summary: MITRE's Data Science and Engineering department is looking for qualified applicants to bring their advanced data engineering skills to bear on...InternshipLocal area3 days per week
- ...We’re hiring: Senior/Lead Big Data Engineer We’re looking for a senior- or lead-level Big Data Engineer who can take on complex technical challenges and communicate solutions clearly. This is a hybrid role based in Rockville, MD, or Tysons Corner, VA . Must...Full time
$77.6k - $176k
...Job Number: R0251792 Data Engineer, Lead The Opportunity: Make enterprise data and knowledge usable, governed, and dependable for AI applications. You will design data architectures and build the pipelines, knowledge indexes, and retrieval services that ground...Full timeContract workPart timeLocal areaRemote work$113k - $188k
...Job Family : Data Science Consulting Travel Required : Up to 10% Clearance Required : Ability to Obtain Public Trust What You Will Do : Guidehouse is seeking a Data Scientist to join our AI & Data Defense and Security Segment, where the individual...Temporary workFlexible hours- ...About the Organization Now is a great time to join Redhorse Corporation. We are a solution-driven company delivering data insights and technology solutions to customers with missions critical to U.S. national interests. We're looking for thoughtful, skilled professionals...Civilian ContractorContract workWork at office
$161.8k - $184.6k
...Principal Data Scientist - Ai Foundations, Specialist ModelsData is at the center of everything we do. As a startup, we disrupted the credit card industry by individually personalizing every credit card offer using statistical modeling and the relational database, cutting...Full timePart timeImmediate start$98k - $163k
Job Family:Data Science ConsultingTravel Required:Up to 25%Clearance Required:Active SecretWhat You Will Do:Our consultants on the Defense & Security AI & Data team support the U.S. Department of State in using data as a strategic asset to advance American diplomacy, strengthen...Full timeWork at officeOverseasFlexible hours$150k - $170k
...Applied Data & Software EngineerAt Agile Defense we know that action defines the outcome and new challenges require new solutions. That's why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.Our vision...- ...Location: Arlington, VA / Washington, DC Metro Area (candidates must be local to this area) We are seeking a Lead Palantir Data Engineer to support a federal acquisition modernization initiative focused on delivering AI-driven analytics and decision-support capabilities...Full timeFor contractorsLocal area
$116.2k - $229.1k
...our innovative and dynamic workforce!Recruiting for this role ends on 02/28/2027Work you'll do· As a Supply Chain Optimization Data Scientist you will be responsible for· Define decision objectives, constraints, business rules, and performance measures with client stakeholders...Local area$132.9k - $207.75k
Responsibilities **This is part of a proposal effort and is contingent on contract award Noblis is hiring multiple AI/ML Engineers and Data Scientists. This will be a full-time role located onsite at a Government facility in the National Capital Region (NCR). In this role, you...Full timeContract workPart timeLocal areaRemote work- ...Digital Core, Finance, Industry and Enterprise, Song, Supply Chain and Engineering, and Talent, with advanced capabilities in AI and Data, Industry and Process, and Technology. We serve approximately 9,000 clients and generated approximately $74 billion in FY26 revenue....Work experience placementLive inWork at officeLocal area
- ...innovation sessions with clients to identify business opportunities and design, develop, and optimize architectures to tackle the Big Data and Data Science needs for federal and local government agenciesUtilize processes and best practices to plan, lead, and execute...Local area
$122k - $240.5k
Position Summary Are you an experienced, passionate pioneer in data and technology who wants to work in a collaborative environment? As an experienced LeadAI and Data Science Engineer II - Marketing Measurement, you will have the opportunity to share new ideas and...Local area$113k - $188k
...Job Family : Data Science Consulting Travel Required : None Clearance Required : Ability to Obtain Public Trust What You Will Do : Guidehouse is seeking a Data Engineer to join our Defense and Security Segment, where the individual will collect...Temporary workFlexible hours$113k - $188k
...Job Family : Data Science Consulting Travel Required : Up to 10% Clearance Required : Ability to Obtain Public Trust What You Will Do: Our consultants on the AI and Data Defense and Security team help clients maximize the value of their data and...Temporary workFlexible hours$95k - $112k
...Are you an experienced, passionate pioneer in technology who wants to work in a collaborative environment? As an experienced Data Engineer-Consultant you will have the ability to share new ideas and collaborate on projects as a consultant without the extensive demands...Local area$90k - $130k
...ETL Data EngineerAlpha Omega is seeking a qualified ETL Data Engineer for one of our prime Federal projects in Arlington, VA. He will develop, maintain, and support four project areas: a downstream API, a file-ingestion and ETL application, AWS-based file-transfer automation...Contract workWork experience placementFlexible hours- ...Data Scientist / ML EngineerKSA Integration is a Service-Disabled Veteran-Owned Small Business (SDVOSB) that provides business and management solutions through three core capabilities: data analytics, comprehensive veterans support, and business process improvement. We...Full timeFor contractorsWork experience placementSummer work
- ...Overview Visual Connections, LLC is seeking a qualified Data Scientist to join our team in McLean, VA . The successful candidate will demonstrate expertise in Python development, SQL data validation, analytics solutions, and managing CI/CD pipelines and repositories....Permanent employmentTemporary workWork at officeLocal area
- ...Data ScientistThe Data Scientist will develop AI/ML models through training, fine-tuning, feature engineering, benchmarking, and deployment preparation. This person will apply scientific methodology to extract insights and create predictive capabilities from data. This...
- ...Data ScientistAir is the leader in Enterprise Readiness. Our mission is to establish readiness as a real-time condition that is continuously... ....We are seeking inquisitive, customer-value-oriented data scientists to join our Forward Deployed team. In this role you will...Full timeWork at officeRemote workFlexible hours
$120k - $140k
...Job DescriptionJob DescriptionData ScientistKalman & Company is seeking a highly motivated, performance driven individual with strong data analysis experience to work closely with our Department of Warfare (DoW) clients. Successful candidates will have excellent...
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