Curriculum Vitae

Josiah Leinbach

M.S., M.A.

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View PDF →

Professional Experience

Florida Department of Education Tallahassee, FL
Director of Research and Analytics, Florida College System Jan 2026 – Present
  • Oversee statutory reporting for the Florida College System.
  • Lead a collaborative taskforce producing an operations manual to assist colleges undertaking ERP migrations.
  • Conduct long-term studies on student enrollment, student outcomes, and college efficiency.
  • Build internal databases and applications to expedite data collation, aggregation, search, and summary.
  • Advise FCS chancellor and executive vice-chancellor on AI-related topics.
Designetics Holland, OH
Data Scientist (contract) Oct 2025 – Present
  • Built Shiny applications to automate defect report generation and increase scope of defect tracking.
  • Implemented a proprietary inventory itemization nomenclature linking inventory systems to manufacturing and reporting systems.
Bowling Green State University Bowling Green, OH
Graduate Researcher Oct 2022 – Aug 2025
  • Applied clustering algorithms to maximize coverage and minimize route-lengths for potential new university shuttle routes based on student living density; used vehicle routing problem (VRP) heuristics to corroborate findings.
  • Developed a predictive model for NCAA basketball players likely to enter the transfer portal; wrote a dynamic web-scraping script to curate data from recruiting and transfer-portal websites.
  • Designed and carried out prompt-engineering factorial experiments on LLMs to determine prompt-sensitivity and response-variability in survey question generation; measured quality with Survey Quality Predictor (SQP) metrics.
Statistics Tutor 2022 – 2023
  • Tutored undergraduate business students in statistics and business analytics courses.
Revere Bible College Monclova, OH
Instructor Jan 2024 – Dec 2024
  • Taught courses and developed curriculum for POLI-1200 (The American Heritage) and POLI-2100 (Christian Political Theory).
Prolego Press Bowling Green, OH
Editor Jul 2023 – Present
  • Manage republication of historical texts, including research for footnotes and annotations; wrote style-guide for 16th and 17th century manuscripts.
  • Write OCR scripts and integrate LLMs into publication workflows.
  • Coordinate reviewers, marketers, and distributors.
  • Oversee the Whitaker Fellowship summer program for Hillsdale College undergraduates.
Alliance Quizzing Maumee, OH
National Executive Board — Chair for Institutional Advancement 2023 – Present
  • Create bilateral institutional partnerships to ensure future organizational growth.
  • Reduced national executive board's yearly financial obligations by an average of 34% from 2023–25.
  • Wrote the executive board's new governing constitution, bylaws, and SOPs to guide the board through a significant institutional transition.
  • Established data-reporting procedures to track participation and retention rates across all districts; use reported and event data to guide marketing decisions.
Great Lakes District — Assistant District Coordinator 2020 – Present
  • Oversee all yearly district events and administer two large inter-district events.
  • Implemented reforms leading to 138% total growth (15.5% annualized) in participants.
Ring Digital Maumee, OH
Research Analyst Feb 2021 – Apr 2022
  • Leveraged client data to prepare analytical reports on consumer and voting patterns.
  • Created detailed candidate profiles and tracked election developments for political clients.
  • Analyzed customer and voter survey data for statistically significant results and trends.
Checkmate Chess Academy Maumee, OH
Chess Coach 2020 – 2023
  • Taught group and individual chess lessons to middle and high school students.
  • Organized classical and blitz chess tournaments.
Hillsdale College Hillsdale, MI
Winston Churchill Fellow in History and Politics 2017 – 2020
  • Assisted in publishing Vols. 21, 22, and 23 of The Churchill Documents (23 volumes, 33,200 pages); researched footnotes and annotations, edited transcribed documents, and instructed new fellows in editorial style.
  • Invented metadata cataloging system for Sir Martin Gilbert's personal archive (65,000 documents).

Education

Bowling Green State University Bowling Green, OH
M.A., Economics 2025
M.S., Applied Statistics and Operations Research 2024
Hillsdale College Hillsdale, MI
B.A., History 2020

Skills & Competencies

Technical

  • Statistical Modeling
  • Bayesian Analysis
  • Experimental Design
  • Sample Design
  • Econometrics
  • Machine Learning
  • Monte Carlo Simulation
  • R
  • Python

Professional

  • Deploy analytic and predictive statistical models
  • Coordinate teams on large-scale, long-range projects
  • Establish innovative, mutually beneficial partnerships
  • Communicate technical concepts to non-technical stakeholders
  • Understand and articulate different points of view
  • Conduct public presentations and field questions

Honors & Awards

3-Minute Thesis — Regional Semi-Finalist

Midwest Association of Graduate Schools

2025 Watch recording →

Director's Award for Public Policy Research

"'Till Death (Or Taxes) Us Do Part: Removing Marriage Penalties in the Federal EITC"

Hoover Institution, Stanford University

2024 Read essay →

James A. Sullivan Award

Bowling Green State University — outstanding service to the statistics department

2024

Arlan P. Gilbert Award

Hillsdale College — original historical research

2020

For peer-reviewed papers, theses, edited volumes, and articles, see the Publications page.