Senior Data Scientist

Haystack
Washington, District of Columbia, United StatesFull-timePosted Aug 30, 2026

About the role

A leading global advisory and technology services provider seeks an experienced and cleared Senior Data Scientist. This organization combines unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.

The Role

Support the research and development of new cyber analytic capabilities to protect and defend networks and critical information systems for a large federal cybersecurity program

Contribute to the understanding of cyber-attacks, vulnerability exploitation, and hostile cyber actor operations

Create actionable insights through the development of machine learning, deep learning models, and related algorithms

Experiment and prototype future cyber capabilities for large-scale implementation

Develop custom data models and algorithms and assess the effectiveness and accuracy of new data sources

Interpret and communicate complex results to non-technical stakeholders

What You'll Need

Active security clearance is required

US Citizenship is required

Bachelor's degree with 12+ years or Master's degree with 10+ years of experience in Computer Science, Statistics, Applied Mathematics, AI, or a related field

10+ years of practical experience in Natural Language Processing, Machine Learning Models, Data Science, Knowledge Engineering, or related areas

Strong experience with mathematical, statistical, data mining, and data analysis methods/tools

Proficiency in one or more programming languages (e.g., Python, JavaScript, R)

What's On Offer

Opportunity to contribute to an important project from its inception

Work with the latest and emerging technologies

Develop a great career within a supportive and innovative environment

Primarily telework-based with occasional meetings at client locations

Apply via Haystack today!

Responsibilities

  • Support the research and development of new cyber analytic capabilities
  • Contribute to the understanding of cyber-attacks and vulnerability exploitation
  • Create actionable insights through machine learning and deep learning models
  • Experiment and prototype future cyber capabilities
  • Develop custom data models and algorithms
  • Interpret and communicate complex results to non-technical stakeholders

Qualifications

  • Active security clearance is required
  • US Citizenship is required
  • Bachelor's degree with 12+ years or Master's degree with 10+ years of experience
  • 10+ years of practical experience in Natural Language Processing and Machine Learning
  • Strong experience with mathematical, statistical, data mining, and data analysis methods/tools
  • Proficiency in one or more programming languages (e.g., Python, JavaScript, R)

Benefits

  • Opportunity to contribute to an important project from its inception
  • Work with the latest and emerging technologies
  • Develop a great career within a supportive and innovative environment
  • Primarily telework-based with occasional meetings at client locations

Skills mentioned

PythonMachine LearningDeep LearningData ScienceStatistical AnalysisData MiningPredictive ModelingModel EvaluationFeature EngineeringData Analysis

About Haystack

Haystack combines AI & expert vetting to deliver world-class tech candidates who are engaged, aligned, and ready to interview. We're trusted by over 400,000+ tech candidates, working in Software Engineering, Data, Design, DevOps, Cloud, Tech Management, Testing, Product & Delivery, Architecture and more. 100s of employers from startups and scale-ups like Atom Bank, DuckDuckGo and Goodlord to established enterprises like American Express, Dunelm and AWS use Haystack to connect with qualified tech talent that they can't find anywhere else.

Technology51-200 employeesNewcastle upon Tyne, England