Joshelyn Guimaray
Summary
Experienced with conducting in-depth research and data analysis. Utilizes advanced methodologies and techniques to support academic projects. Knowledge of statistical software and laboratory protocols enhances research outcomes.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Graduate Research Assistant (Water Treatment Focus)
University of South Florida
01.2022 - Current
- Managed the technical design and water quality analysis for an EPA-partnered stormwater redevelopment project, providing key engineering recommendations for a full-scale bio-infiltration system.
- Authored quarterly technical progress reports for project stakeholders, detailing nutrient concentration data (N & P) and tracking milestones to ensure project alignment with environmental goals.
- Engineered, constructed, and operated pilot-scale water treatment systems to evaluate the efficacy of various media (including biochar) and design configurations (e.g., drainage style, vegetation) for nutrient removal.
- Conducted comprehensive water quality testing, including adsorption studies, saturated hydraulic conductivity tests, and tracer studies to characterize media performance and optimize system design for solute capture.
- Performed statistical analysis on all experimental data using Excel and RStudio, translating raw water quality parameters into actionable insights and publication-quality visualizations.
- Presented complex technical findings and research outcomes to diverse audiences, including university faculty, industry professionals at academic conferences, and project partners.
- 5 years 7 months
Technical Instructor & Mentor
University of South Florida College of Education
09.2021 - 12.2021
- Trained a cohort of pre-service science teachers on the fundamental principles and operation of small-scale water treatment systems.
- Led hands-on workshops covering the construction, operation, and maintenance of biosand filters, including proper media preparation and the function of the biological treatment layer (biolayer).
- Instructed students on standard water quality analysis protocols to evaluate system performance, including testing for pH, turbidity, and E. coli.
- Provided continuous technical support and mentorship through weekly progress meetings, troubleshooting operational issues and reinforcing key water treatment concepts.
- 4 months
Graduate Research Assistant (Drinking Water Quality)
University of South Florida
05.2020 - 12.2021
- Managed daily laboratory operations, including updating and revising Standard Operating Procedures (SOPs) and overseeing inventory control for all raw materials and supplies.
- Conducted comprehensive analysis of drinking water samples, testing for a wide range of water quality parameters including pH, turbidity, UV254, alkalinity, and fluoride.
- Performed microbiological testing to assess drinking water safety, including the preparation, evaluation, and quantification of E. coli.
- Analyzed all experimental data using MS Excel to identify trends, evaluate treatment efficacy against drinking water standards, and prepare results for academic review.
- Authored a peer-reviewed journal article and presented research findings to faculty during weekly progress meetings to communicate project status and outcomes.
- 1 year 8 months
REU Mentor (Urban Water Sustainability)
University of South Florida
06.2021 - 08.2021
- Guided an undergraduate researcher through a project focused on arsenic removal from drinking water using iron oxide coated media (biochar, pumice, sand).
- Co-designed and executed preliminary experiments to inform the design of a biosand filter aimed at meeting EPA safe drinking water standards for arsenic.
- Provided hands-on training in advanced laboratory methods, including arsenic adsorption analysis, porosity testing, and water quality parameter measurement (turbidity, pH, UV254).
- Mentored the student in scientific communication, assisting in the data analysis, synthesis, and preparation of a research poster for a formal university symposium.
- 3 months
Graduate Teacher Assistant (Numerical Methods)
University of South Florida
07.2020 - 12.2020
- Evaluated and graded technical assignments and exams for 100+ students, collaborating with the professor in weekly meetings to establish grading standards and ensure alignment with course objectives.
- Delivered targeted academic support during scheduled weekly office hours, assisting individuals and small groups (1-5 students) in clarifying complex concepts to improve comprehension and performance.
- Provided detailed, constructive feedback on student assignments, identifying common errors and explaining correct methodologies to facilitate learning.
- Maintained the course's online portal and managed grade records, ensuring accurate and timely communication of student performance.
- 6 months
Graduate Research Assistant (Process Simulation)
University of South Florida
01.2020 - 05.2020
- Developed process simulation models using GPS-X for 7 Hillsborough County water reclamation facilities to analyze and optimize treatment processes.
- Served as the team's subject matter expert on GPS-X, training a group of 8 faculty and research members on its application for advanced process modeling.
- Managed all project documentation, including technical plans and research papers related to the simulation process.
- 5 months
Academic Tutor (Math & Science)
Self-employed
08.2014 - 12.2019
- Developed customized lesson plans and instructional materials using MS Excel and PowerPoint to simplify complex math and science concepts for high school and college students.
- Provided one-on-one academic support, breaking down and solving advanced homework problems to reinforce core principles.
- Designed and administered practice exams to prepare students for assessments, leading to measurable improvements in test scores.
- Adapted teaching methods to accommodate diverse learning styles and academic levels, ensuring all students could grasp complex material.
- 5 years 5 months
Education
Ph.D. - Environmental Engineering
University of South Florida
Tampa, FL12.2025
M.D. - Environmental Engineering
University of South Florida
Tampa, FL08.2022
Bachelor's degree - Chemical Engineering
University of South Florida
Tampa, FL12.2019
Associate of Arts - AA - Engineering
Florida SouthWestern State College
Naples, FL12.2016
Skills
- Project Management
- Research Skills
- Mentoring
- Teamwork and collaboration
- Analytical thinking
- Academic presentations
- Data organization
- Lab work
Languages
Spanish (Native or Bilingual)
English (Native or Bilingual)
Certification
- Hazard Recognition
- Explosion Hazards
- Minimizing & Identifying Process Safety
- Risk Review Using LOPA
- The Role of Inert Gases in Process Safety
Timeline
Graduate Research Assistant (Water Treatment Focus)
University of South Florida
01.2022 - Current
Technical Instructor & Mentor
University of South Florida College of Education
09.2021 - 12.2021
REU Mentor (Urban Water Sustainability)
University of South Florida
06.2021 - 08.2021
Graduate Teacher Assistant (Numerical Methods)
University of South Florida
07.2020 - 12.2020
Graduate Research Assistant (Drinking Water Quality)
University of South Florida
05.2020 - 12.2021
Graduate Research Assistant (Process Simulation)
University of South Florida
01.2020 - 05.2020
Academic Tutor (Math & Science)
Self-employed
08.2014 - 12.2019
Ph.D. - Environmental Engineering
University of South Florida
M.D. - Environmental Engineering
University of South Florida
Bachelor's degree - Chemical Engineering
University of South Florida
Associate of Arts - AA - Engineering
Florida SouthWestern State College
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