Senior Data Scientist (Remote)

This is a remote position with heavy travel during the first 3-6 months

Ad Hoc is a technology company that empowers organizations to deliver scalable, impactful digital services. Using modern, agile methods, our team creates products that meet people's needs and transform their experience of government.

Work on things that matter

Our collaborations have shaped some of the defining moments in public-sector service delivery. We've helped build products that connect Veterans to tailored services, help millions access affordable health care, and support important programs like Head Start. As we work with agencies to deliver critical services, we're also changing how the government approaches technology.

Built for a remote life

Our culture, communications, and tools are built for remote work, enabling us to bring together top talent nationwide. At Ad Hoc, remote life empowers our teams to design work environments that fit their lives and that foster flexibility and collaboration to achieve positive outcomes for our customers.

Committed to high expectations and a welcoming culture

Ad Hoc values acceptance, accountability, and humility. We aren't heroes. We learn from our mistakes and improve the process for the next time. We build small, inclusive teams to collaborate closely with our partners to solve the right problems and deliver software that works.

The Federal Civilian business unit supports many customers spanning the federal, commercial, and nonprofit space. Our customers include NASA, the General Services Administration, Office of Personnel Management, the Library of Congress, Health & Human Services, and the FDIC. We partner with these agencies to build new capabilities, deliver products, establish data as a strategic asset for informed decision-making, modernize legacy systems, and build the digital service infrastructure necessary to scale their mission impact.

Primary Responsibilities:

Senior Data Scientist serves as an experienced individual contributor within a team, with the expectation that you will further develop your leadership, guidance and mentoring skills. With minimal oversight from leadership, you will be responsible for supporting the goal of meeting scope, schedule and delivery requirements. A Senior Data Scientist impacts the long-term goals of the program, while contributing to the development of the program's data science strategy.

The Data Scientist will architect the intelligence layer that transforms .gov sites from an information repository into an interactive feature set powered by responsible AI. They'll help build and optimize LLM-based features that accurately answer broad public health queries based on verified stakeholder content, develop sentiment analysis models that detect health misinformation trends across social media in real-time, and create predictive models that transform raw data into actionable insights and alerts. Working at the intersection of public health and artificial intelligence, this role will work on a number of initiatives that may include: evaluation frameworks to ensure LLM responses maintain medical accuracy, bias detection to ensure equitable health guidance across all demographics, and design feedback loops that continuously improve the AI/LLM ability to serve the public.

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  Strong influence on business or customer experience improvements based on research

  
  
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  Serves as a mentor to junior Analysts, Engineers, and Scientists on the program

  
  
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  May lead small, less critical, or temporary team structures and projects

  
  
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  Presents statistical and mathematical concepts to non-experts

  
  
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  Fully understands and ensures implementation of best practices across program(s)

  
  
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  Builds and improves predictive models using data from multiple sources

  
  
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  Automates feedback loops for algorithms/models, creates repeatable processes, and scalable data products

  
  
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  Reviews, scales, and enhances operationalized statistical models and algorithms

  
  
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  Able to apply recommendation systems, ML, NLP, statistics, and deep learning within the program

  
  
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  Participates in technical interviews with new candidates, evaluates homework assignments

  
  

Required Qualifications:

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  Bachelor's degree and 7+ years of experience

  
  
  
  
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    Relevant years of experience may be substituted for education

    
    
  
  
  
  
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  Python (pandas, scikit-learn, langchain, openai/anthropic libraries) to enable traditional data analysis + the orchestration of LLM interactions, prompt engineering, and building RAG (Retrieval Augmented Generation) pipelines with CDC content

  
  
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  Vector Databases (Pinecone, Weaviate, or PostgreSQL with pgvector) - Critical for semantic search and the ability to find relevant CDC content and ensuring medically accurate responses for features that may include a chatbot

  
  
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  API Integration & Testing Tools (Postman, pytest, FastAPI) - supporting tech to validate LLM responses against sources, A/B test different prompt strategies, and measure response accuracy

  
  

Preferred Qualifications:

• Hugging Face ecosystem (transformers, datasets, evaluate) - For fine-tuning smaller models on CDC-specific terminology and evaluating model performance on queries
• Streamlit or Gradio - Rapid prototyping of LLM interfaces for demos and internal testing

To learn more about working at Ad Hoc, please visit:https://adhocteam.us/join

Benefits:

• Company-subsidized health, dental, and vision insurance
• Flexible PTO
• 401K with employer match
• Paid parental leave after one year of service
• Employee Assistance Program

Ad Hoc LLC is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, national origin, ancestry, sex, sexual orientation, gender identity or expression, religion, age, pregnancy, disability, work-related injury, covered veteran status, political ideology, marital status, or any other factor that the law protects from employment discrimination.

In support of various state and city equal pay transparency laws, Ad Hoc job descriptions feature the starting range we reasonably expect to pay to candidates who would join our team with little to no need for training on the responsibilities we've outlined above. Actual compensation is influenced by a wide range of factors including but not limited to skill set, level of experience, and responsibility. The range of starting pay for this role is $130,000 - $150,000. Our recruiters will be happy to answer any questions you may have, and we look forward to learning more about your salary requirements.