photograph of Daniel Jarratt

Daniel Jarratt

Data scientist

I have 5 years experience with data science, software engineering, and product management, with a focus on recommender and decision support systems.

  • I'm currently working on prediction of school dropout likelihood for state departments of education, where I can explore complex hierarchical time-based models.
  • For fun I use R and Stan to model football team strength and predict game outcomes, and I'm working on rigorous sports analytics model evaluation methods.
  • I also spend significant time with data science in service of college search and higher education enrollment management.

R, SQL, Java, Python

M.S. in computer science, University of Minnesota

@danjarratt

Twin Cities, Minnesota, USA

daniel.jarratt@gmail.com

Education

Master of science in computer science


Bachelor of arts

  • , summa cum laude honors
  • television/radio production, humanities

Sports analytics

Work experience

Data scientist


Software engineerInfinite Campus
June 2015 - May 2016

  • software engineer for a student information system with 7 million students
  • development in Java and SQL


Recommender systems consultant — employer confidential
April 2015 - May 2015

  • advised company (2nd-largest in their industry) on designing and evaluating a recommender system
  • developed collaborative filtering and data mining prototypes
  • reported to the CTO and head of engineering


Software engineering internGoogle Now
May 2014 - August 2014

  • envisioned and developed a location-based recommendation feature, extending the Google Now service, with support from multiple teams
  • front-end development in Django, JavaScript, JSON, HTML, and CSS
  • back-end development in C++, Python, and Linux-based data center deployment


Recommender systems consultantGet Schooled
April 2014


Technical product managerPossibilityU
November 2011 - December 2013


Software side project full-time — College Recommender
January 2011 - November 2011

My work in higher education admissions led me to many families struggling to discover relevant and affordable universities. College Recommender was my solution: a system to infer preferences from a set of acceptable colleges, then recommend better (more affordable, better academic or cultural fit) options with similar features. This project required significant creativity and skepticism about then-current market wisdom; it was the first college recommender, followed four years later by others in the industry.

  • entrepreneur, software engineer, and product manager
  • envisioned and built a system to infer college search preferences and create personalized recommendations: collecting and interpreting the right data, database and algorithm design choices, user experience design, and evaluation along the way with students, families, and college admissions professionals
  • designed system to handle difficult properties of this recommendation domain: no rating or consumption history, complex preference elicitation, and multiple stakeholders, among others
  • developed in PHP and MySQL
  • sold this software to PossibilityU, who hired me as technical product manager

Non-technical roles

Scholarship program staffNational Merit Scholarship Corporation
August 2009 — January 2011


Admission counselorValparaiso University
August 2008 — August 2009


International office internReutlingen University
September 2007 — August 2008