Employment

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Data Analyst & Research Coordinator-L2
UTHSC - Preventive Medicine
Jan 2022 - Current

    • Data processing, statistical analyses, and reporting for clinical studies, surveys, and research projects.
    • Utilization of a variety of statistical methods for data exploration and analysis. Not limited to descriptive statistics, linear statistical models, categorical data analysis, generalized liner models, multivariable analysis, and survival analysis.
    • Interpretation and explanation of results to clinical collaborators
    • Developing templates for graphical representation and dynamic report generation for ongoing projects through ODBC connections into Oracle and FileMaker tables.
    • Data visualizations and general-purpose programming using R, Python, and SAS
    • Conduct exploratory data analysis to identify trends, patterns, and potential safety or efficacy alerts across multiple studies.
    • Collaboration across different teams, including clinical researchers, data managers, and medical professionals, and information technologists to develop statistical analysis plans for clinical trials.
    • Work with other clinical and programming personnel to design, develop, and maintain appropriate databases.
    • Develop programs to ensure data integrity and quality control.
    • Develop efficient data archival systems for use with multi-center collaborations.
    • Maintain detailed written documentation of all data programming and data archival systems.
    • Serving as a resource to faculty in advanced data analysis with strong interpersonal and verbal and written communication skills
    • Programmed and maintained survey tools in Qualtrics.
    • Managed data storage of collected clinical trial data in FileMaker and Oracle.

Research Coordinator
UTHSC - Preventive Medicine
Jun 2020 - Jan 2022 (1 YR 7 MTH)

    • Understand thoroughly all assigned studies through reading protocols, attending investigator meetings and start-up meetings, and coordinating with Principal Investigator.
    • Adhere strictly to the study protocols, including all protocol requirements for patient visits, obtaining informed consent, patient visit schedules, test procedures, laboratory information, and other requirements.
    • Educate patients and their family members regarding the clinical trials process and the details of the specific study in which they’re participating.
    • Coordinate and conduct patient visits and assure all procedures are conducted in compliance with the clinical trial protocol and Good Clinical Practice (GCP).
    • Track enrollment status of patients and ensure timely communication with patients regarding their study participation.
    • Manage study related activities from recruitment, retention, intervention, and QC.
    • Assess, record, and report Adverse Events as outlined in the protocol.
    • Support data entry activities to meet study data needs and deadlines.
    • Create and maintain patient visit tracking spreadsheets for Clinical Project Manager
    • Develop and maintain file management and maintain the study monitor calendar.

Biostatistics Research Assistant
University of Memphis
Mar 2020 - May 2022 (2 YR 2 MTH)

    • Performed varying statistical analysis. Including but not limited to descriptive statistics, linear statistical models, categorical data analysis, generalized liner models, multivariable analysis, and survival analysis.
    • Scripted and performed varying simulation studies and analysis using HPC.
    • Assisted in the writing and preparation of research reports, including internal documentation, academic publications, and research presentations at national meetings.
    • Perform statistical programming and analysis for multiple research studies, with guidance from faculty biostatisticians using various statistical models.
    • Create analysis datasets, summarize data, and creates reports using R and SAS.
    • Assess the appropriateness of final statistical models.
    • Document methods and results via written reports.
    • Responsible for programming and publishing an R package (RHclust)

Orthopedic and Neurological
Medical Device Sales Rep
Dynasplint Systems Inc.
May 2018 - Apr 2020 (1 YR 3 MTH)

  • Regional Territories:
    • South-Western Tennessee
    • North-Western Mississippi
    • Eastern Arkansas
  • Cold calls to outpatient physical therapy clinics and physician offices
  • Worked with my southern sales service representatives to validate patient insurances
  • Obtaining and organizing patient information for proper billing protocols
  • Patient evaluations and consultations for proper medical device fittings and usage
  • Frequent follow-ups to ensure proper biomechanical alignment and proper fitting
  • Specializations in:
    • Orthopedics
    • Neurological Disorders

AS/400 Systems Operator / IT Specialist
H.T. Hackney Coorporate Headquarters
Jul 2018 - May 2019 (11 MTH)


  • Using the AS/400 system to manage warehouse jobs at all locations across the eastern US.
  • Managing failed system operations at corporate or other locations
  • Identifying and coordinating with warehouse on potential job issues
  • Occasional tracking and confirmation of orders
  • Printing, binding, and packaging job orders from warehouses as they are sent in.
  • Running weekday and weekend backups at appropriate times.
  • Assisting sales associates and customers with the handheld devices used for submitting orders.

Sales Manager
Q4Fitness
Jan 2017 - Aug 2017 (1 YR 3 MTH)


  • Responsible for recruitment, hiring, and training of sales staff and coaches.
  • Developed dashboards for monthly sales reports with the owner.
  • Oversaw weekly sales meetings.
  • Strategized selling tactics, advertisements, and product promotions.

Head Lifeguard and Certified Pool Operator
Ric Nuber YMCA
Feb 2011 - May 2015 (4 YR 4 MTH)


  • Oversaw a team of fifteen lifeguards.
  • Coordinated monthly in-service meetings.
  • Performed swim tests for both lifeguards and members.
  • Oversaw in-water and out-of-water life-saving techniques.
  • Creating the biweekly/monthly work schedules.
  • sPerformed scheduled pool cleaning, maintenance, and backups.
  • Oversaw pool maintenance which included proper chemical balance, disinfection, circulation and filtration.

⇐ Contact Education ⇒

Education

⇐ Employment Knowledge ⇒

Doctor of Philosophy (PhD)
Epidemiology & Biostatistics

University of Memphis 2023-Current

MEM

Master of Science (MS)
Biostatistics

University of Memphis 2020-2023

MEM

Master of Science (MS)
Biomechanics

University of Tennessee at Knoxville 2017-2019

UTK

Bachelor of Science (BS)
BS - Exercise Science

University of Tennessee at Chattanooga 2012-2016

UTC

Christian Brothers High School

CBHS
⇐ Employment Knowledge ⇒

Publications

⇐ Knowledge Contact ⇒

Publications

  • Handwerker J, Sobral L, Ray M. (2021). RHclust: Vector in Partition. R package version 2.0.0. https://CRAN.R-project.org/package=RHclust
  • Handwerker J. (2023). Vector in Partition Extension: Analysis of Clustering when Genetics Distance is Weighted by Covariates. ProQuest Dissertations and Theses.

    • Abstract & Presentations

    UTHSC Department of Preventive Medicine Biostatistics Seminar Series. October 2023.
  • Handwerker J, Ray M. A Clustering Approach to Non-Equal Length Joint Pattern Genetic and Epigenetics Factors Weighted by Covariates. Oral Presentation.

    • Midsouth Data Science Conference. Memphis, Tennessee. June 2023
  • Handwerker J, Ray M. Covariate weighted non-parametric clustering of joint pattern multi-genetic/epigenetic factors. Oral presentation.

    • Joint Statistical Meeting. Toronto, Canada. August 2023
  • Handwerker J, Ray M. Non-parametric clustering of joint pattern multi-genetics/epigenetics factors weighted by covariates. Poster Presentation.

    • Assisted Grants (total: $4,199,955)

  • 1R01CA267643-01. “Managing Obesity by Leveraging Health Information technology to Lower Cancer Risk.” NCI. Amount, $639,058
  • W81XWH-17-100451. “The effect of a powered ankle foot orthosis (PAFO) on function, safety & quality of life in military service members and veterans who wear a prescribed orthosis”. Department of Defense (DoD). Amount, $1,998,325.
  • OP140065. “The effect of a Microprocessor prosthetic foot on function and quality of life in trans-tibial amputees who are limited community ambulators.” Clinical and Rehabilitative Medicine Research Program (CRMRP) Orthotics and Prosthetics Outcomes Research Program (OPORP). Department of Defense (DoD). Amount, $1,492,955.
  • 1R03AI128227-01A1. “Joint Patterns of multi-genetic/epigenetic factors via non-parametric clustering and their association with allergic disease”. NIAID/NIH. Amount, $69,617

    • ⇐ Knowledge Contact ⇒