Careers in Data Analytics and Policy

Collin Paschall

2026-02-25

About Me

  • Program Director at Johns Hopkins University for the M.S. in Data Analytics and Policy.
  • M.S. degree - an interdisciplinary professional master’s degree that prepares learners for careers in the public sector.

Plan for Presentation

  • Defining Data Science.
  • The Hard Skill Toolkit.
  • Career Roles & Archetypes.
  • The Public Sector Landscape: Where the jobs are.
  • Unique Aspects and Challenges of Public Sector Data, and how to prepare.
  • The Job Search.

What is Data Science?

  • At its core: Using math, statistics, and programming to extract insights from raw information.
  • It is a discipline of translation—moving from numbers to narratives.
  • Every organization benefits from this.

The Different Branches

  • Exploratory Analysis (Description): What is happening?
  • Econometrics (Inference): Focused on understanding causality (cause and effect). It is theory-driven and rooted in social science.
  • Machine Learning (Prediction): Focused on maximizing predictive accuracy and identifying patterns; rooted in computer science.
  • Do you need to get information, isolate a specific effect for a decision, or do you need a predictive engine that works at scale? (or, all three)

Career Roles & Archetypes

  • Data Analyst: Telling stories through visualization and reporting.
  • Data Scientist: Building models to anticipate and solve community needs.
  • Evaluator: Designing studies to see “what actually works.”
  • Data Engineer: Managing the plumbing to ensure data is clean, accessible, and secure.

The Hard Skill Toolkit

The Hard Skill Toolkit

  • Statistics: understanding descriptive statistics, distributions, uncertainty, hypothesis testing.
  • Programming Languages:
    • R: The gold standard for statistical social science.
    • Python: For scalable machine learning, automation, and general-purpose scripting.
  • Databases: SQL is the essential language for communicating with data servers.
  • GIS: Data often has spatial components.
  • Version Control: Using Git/GitHub to show your work and collaborate with others.
  • AI: what is it good for and what it is (for now) not good for.
  • Low code tools (Excel, PowerBI, Tableau)

The Public Sector Landscape

  • Federal Agencies: Large scale data at the Census, BLS, HHS, and more.
  • State & Local Government: Where policy hits the pavement - housing, transit, public health, public safety.
  • Civic Tech & Research: Think tanks like the Urban Institute, NGOs.
  • The Hybrid Space: Consulting for social impact, governmental operations, and advocacy work (and profit).

Unique Aspects of Public Sector Data

Unique Aspects of Public Sector Data

  • Mismatch between Evidence and Politics
  • Transparency and Legalities
  • Limited Resources

Mismatch between Evidence and Politics

  • Experts are ignored all the time.

  • Technical success vs. political failure:

    • Lack of buy-in from frontline workers or the community.
    • Differing incentives and interests of political decision makers and substantive experts.

Transparency and Legalities

  • Thinking of data as a public utility rather than a corporate asset.
  • The responsibility of the data steward: accuracy, transparency, and accountability.
  • High stakes decisions may need human touch.

Working Lean

  • Many agencies operate on legacy systems, Excel spreadsheets, or even paper records.
  • Infrastructure is often fragmented; data silos are the norm.
  • In a low-tech environment, a little skill goes a long way.
  • Easy win: Automating a 20-hour manual reporting task with a simple script can be revolutionary for a small agency.

Soft skills, critical thinking, resoursefulness

  • Navigating bureaucracy and institutional inertia.
  • Balancing competing interests: Budget Hawks vs. Community Advocates vs. Legal Teams.
  • Learning to speak three languages: data (to peers), policy (to bosses), and impact (to the public).
  • Framing findings: A p-value doesn’t win an argument; a compelling narrative backed by evidence does.

Good news: Liberal arts education is great for this! - Major advantages to being well-rounded than a mono-focused specialist.