12 years of professional experience as a Data specialist and application developer. Development of statistical analysis has heavily involved statistical packages with R, SPSS, SQL and SAS. Software applications, web applications and webservices have required development relevant to J2EE, .NET, and Ruby on Rails frameworks. Utilized SQL throughout my professional work and academic research. About 60% of my database work has been with MySQL, and 20% each for both Oracle and SQL Server. Multiple years of working within Agile development environments, and multiple years working independently on developing statistical predictive models and optimizing processes.

1. Tymen Schreuder CV
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Tymen Schreuder
Boulder, Colorado 80301
Phone: (303) 547-4033
tymenschreuder@gmail.com
Executive Summary
- Expertise in data mining, data analysis, and data management
- 12 years of professional IT, along with 8 years of programming experience
- Software Engineer, Software Architect, Data Scientist and Business Intelligence
- Innovative, insightful, and rigorous
Over 14 years of professional experience as a Data specialist and application developer.
Development of statistical analysis has heavily involved statistical packages with R,
SPSS, SQL and SAS. Software applications, web applications and web-services have
required development relevant to J2EE, .NET, and Ruby on Rails frameworks. Utilized
SQL throughout my professional work and academic research. About 60% of my
database work has been with MySQL, and 20% each for both Oracle and SQL Server.
Multiple years of working within Agile development environments, and multiple years
working independently on developing statistical predictive models and optimizing
processes.
Core Technical Capabilities
Analytics: SPSS, R statistical packages, SAS, Tableau, ArcGIS complex analysis
Software: Ruby on Rails, Java, .NET, ASP.NET, C#, RSpec, JQuery, CSS
Relational DB: Oracle, SQL Server, MySQL, Postgres, SQL
Environment: UNIX OS, Windows OS, Agile, TDD
Professional Experience
Data Scientist
Independent Consultant to Expedia, PepsiCo and Active Network
Remote/Dallas, TX
Feb 2012 – Dec 2014
Analytic Responsibilities
- Produced business intelligence and insights driven by business requirements and
statistical analysis, including multiple client ‘Big Data’ data sources
- Responsible for architecting analytic frameworks for data-mining, ETL, analysis, and
reporting. This incorporates open source solutions such as SQL scripting, R Statistical
packages, and are hosted on UNIX servers. The reporting utilize Tableau and R.
- Integrated data sets which including Google Analytics and Google AdWords
- Improved targeted marketing for each of the three clients over the past 3 years

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Developer Responsibilities
- Utilized Ruby on Rails (version 3) web framework to create dashboards and reporting
solutions
- Utilize MySQL database along with Active Record ORM.
- Consolidated disparate complex and large datasets into well-organized relational data
resources.
- Used JSON extensively for data transfer and data ingestion
- Used Devise gem for user authentication and session management
- Designed the schemas necessary for data management and data integration
Software Engineer/Statistician
John Deere
Fort Collins, CO
Jan 2010 – May 2011
- Responsible for the development of John Deere’s sales expectation for Deere’s Canadian
market
- Developed reporting dashboard using Ruby on Rails (Rails 2.0)
- Data sources include the 2006 Census, 15 years of Deere sales, and geospatial data
- Utilized SQL, Oracle, Tableau, R, and ARC-GIS
- Analytic methods include CHAID, Decision-tree analysis, and MARSSplines
- Designed and implemented DB schema in Oracle to effectively manage large datasets
- Performed ETL operations on terabyte-sized datasets
Software Engineer/Statistician
Nursing Home Quality (Now Providigm)
Denver CO
Jan 2010-May 2011
- Combined with the RoR development team towards the successful adaptation of their US
nursing home care software to that requested by the Canadian Ministry of Health
- Provided easy to use analytic dashboards through combining RoR with R statistical
packages
- Provided the analysis and reporting that was required for demonstrating the quality
assurance and efficacy of the adapted software to the requirements identified by the
Ontario Ministry of Health
- Built custom reporting tools for the requirements specified by management
- Assisted in design of experiment to verify validity of Providigm’s tools
- Provided the analysis and reporting of these results to Ontario Ministry of Health
- Agile development environment with Rails 3, OS X and MySQL DB
- Used RSpec for Test Driven Development
- Utilized jQuery, CSS and Rails templates to provide an intuitive
Software Engineer
University of Colorado Health Sciences (UCHSC)
Denver CO
Jan 2006-March 2009
- Provided .NET development of in-house software and utilities
- Developed a web-service that assists university faculty publicize their ongoing research
along with their individual curriculum vitae’s
- Utilized SQL Server, C# .NET, ASP.NET, Subversion, and test-driven development
- Developed multiple web services for the use of medical doctors
- Provided GUI survey applications for State of New York and in-house nursing care

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Software Engineer
IBM
Boulder CO
Apr 2002 – Dec 2005
- Transition legacy software to Java and J2EE
- Additionally responsible for providing Tier 2 Support for transitioned software
- Interfaced with IBM business customers in Latin America, Europe, and the US
- Gathered Specifications, and designed the business objects required for software
- Customer requirements were dynamic along with business critical deadlines
- Assisted in debugging, trouble shooting and testing for application development
Education
M.S. Applied Statistics: Colorado State University, CO (Graduated 2010)
B.A. Biochemistry: University of Colorado, Boulder, CO (Graduated 2001)
B.A. Kinesiology: University of Colorado, Boulder, CO (Graduated 2001)
Minor Mathematics: University of Colorado, Boulder, CO (Graduated 2001)