Priscilla Castle
Houston,TX
Summary
Bachelors Degree in Biomedical Science with 17 years of experience in clinical/forensic toxicology, forensic DNA, public health, specialty gas, and STEM education. Demonstrates strong analytical, communication, and teamwork skills, with proven ability to quickly adapt to new environments. Eager to contribute to team success and further develop professional skills. Brings positive attitude and commitment to continuous learning and growth.
Overview
1
1
Certification
17
17
years of professional experience
Work History
Physics Teacher
Aldine Independent School District
07.2024 - 05.2026
- Plan, prepare and deliver lesson plans and instructional materials that facilitate active learning.
- Develop schemes of work, lesson plans and tests that are in accordance with established procedures.
- Instruct and monitor students in the use of learning materials and equipment.
- Use relevant technology to support and differentiate instruction.
- Manage student behavior in the classroom by establishing and enforcing rules and procedures.
- Maintain discipline in accordance with the rules and disciplinary systems of the school.
- Provide appropriate feedback on work.
- Encourage and monitor the progress of individual students and use information to adjust teaching strategies.
- Maintain accurate and complete records of students' progress and development.
- Update all necessary records accurately and completely as required by laws, district policies and school regulations.
- Prepare required reports on students and activities.
- Participate in department, school, district and parent meetings.
- Communicate necessary information regularly to students, colleagues and parents regarding student progress and student needs.
- Establish and communicate clear objectives for all learning activities.
- Prepare classroom for class activities.
- Provide a variety of learning materials and resources for use in educational activities.
- Observe and evaluate student's performance and development.
- Assign and grade class work, homework, tests and assignments.
- Administering college entry exams.
- Assist in other duties as assigned.
Medical Teacher
Houston Independent School District
08.2023 - 06.2024
- Plan, prepare and deliver lesson plans and instructional materials that facilitate active learning.
- Develop schemes of work, lesson plans and tests that are in accordance with established procedures.
- Instruct and monitor students in the use of learning materials and equipment.
- Use relevant technology to support and differentiate instruction.
- Manage student behavior in the classroom by establishing and enforcing rules and procedures.
- Maintain discipline in accordance with the rules and disciplinary systems of the school.
- Provide appropriate feedback on work.
- Encourage and monitor the progress of individual students and use information to adjust teaching strategies.
- Maintain accurate and complete records of students' progress and development.
- Update all necessary records accurately and completely as required by laws, district policies and school regulations.
- Prepare required reports on students and activities.
- Participate in department, school, district and parent meetings.
- Communicate necessary information regularly to students, colleagues and parents regarding student progress and student needs.
- Establish and communicate clear objectives for all learning activities.
- Prepare classroom for class activities.
- Provide a variety of learning materials and resources for use in educational activities.
- Observe and evaluate student's performance and development.
- Assign and grade class work, homework, tests and assignments.
- Assist DYAD teachers with classroom observations, discipline, and curriculum.
- Assist in other duties as assigned.
DNA Operations Laboratory Technician
Harris County Institute of Forensic Sciences
04.2021 - 11.2022
- Assisted in administrative duties, such as answering and directing phone calls, faxing/emailing case reports, scanning and electronic filing of documents, etc.
- Operated autoclave in the laboratory, ensuring laboratory materials and reagents are available upon request.
- Prepared bloodstain cards from autopsy and other blood samples received through the Toxicology Department.
- Packaged bones and/or tissues from autopsy received through the Toxicology Department.
- Assisted in evidence release for bloodstain card or tissue cuttings as requested by law enforcement agencies and private laboratories.
- Removed biohazard waste containers from laboratory and deposits at designated retrieval area.
- Monitored and updated temperature logs of assigned laboratory equipment.
- Performed routine housekeeping duties, such as the cleaning of surfaces, equipment and glassware.
- Entered case data into various laboratory databases.
- Prepared samples of biological stains, tissues and fluids submitted by forensic pathologists and law enforcement officers for DNA testing.
- Conducted scientific laboratory examinations and analyses of specimens submitted by forensic pathologists and law enforcement officers.
- Assisted in ensuring the laboratory remains in compliance with ISO 17025, the FBI Quality Assurance Standards for Forensic DNA testing laboratories, and both ANAB and TFSC accreditation requirements.
- Rigorously followed all Safety, Method Manual, and Quality Assurance / Quality Control protocols.
- Performed other duties as assigned by the Forensic Genetics Laboratory Director or the Crime Laboratory Director.
- Conducted DNA analysis using PCR/STR based methods.
- Operated and maintain laboratory instrumentation.
- Assisted in ensuring the laboratory remains in compliance with the ANAB accreditation standards and the FBI Quality Assurance Standards for Forensic DNA Testing Laboratories.
- Maintained professional certification by attending continuing education/training courses, workshops, seminars, conferences, and professional meetings.
Investigator I – Food/NNA
Harris County Public Health
04.2018 - 04.2021
- Conducted routine and permitting inspections, re-inspections and surveys of food establishments to determine compliance with the Texas Food Establishment Rules, the Texas Health & Safety Code, and the Harris County Rules for the Regulation of Food establishments.
- Documented violations and completed appropriate forms.
- Investigated and took appropriate action on complaints from citizens of both general environmental sanitation (neighborhood nuisance) and food related complaints.
- Utilized proper tools and equipment to collect samples and conduct appropriate field tests and monitoring.
- Performed proper calibration of equipment as required.
- Determined property ownership from tax records using computer systems and maps.
- Prepared necessary correspondence and record keeping including entering information into designated electronic systems according to policy and procedure.
- Responded to food establishment-related emergencies.
- Gathered evidence for court action as required.
- Prepared and performed testimony in court cases.
- Planned daily work and other work as assigned using computers, reports, established priorities.
- Drove extensively and planned daily schedule to maximize work time and minimize drive time as much as possible.
- Able to efficiently communicate with the public and assist them in finding solutions to comply with Texas Food Establishment Rules.
- Worked on COVID response for Harris County Public Health. Took on a temporary role with the CRP Strike Team/QA data team. Addressed high priority data fixes, input new and corrected patient health information, solved complex patient data issues for contact tracing teams, tracked and detected unresolved data issues.
Chemist I
Airgas
06.2012 - 04.2018
- Performed analysis on gas samples by gas chromatograph to determine levels of impurities and compare them against Airgas specifications to determine whether the sample is acceptable.
- Analyzed complex and medical gas mixtures to determine composition and compliance with production and analytical tolerances.
- Compared analytical results with calculated gravimetric results to determine an acceptable agreement and investigate any discrepancies.
- Determined uncertainties of any production and analytical data and ensured that all results meet required specifications.
- Performed daily maintenance on instrumentation and other related equipment.
- Proficient in Chemstation and EZChrom laboratory software.
- Performed all duties in accordance with Airgas Specialty Gas Standard Operating Procedures and safety policies and the U.S Drug Administration.
- Completed examinations and required annual training for company policies and procedures.
- Able to problem solve when issues arise with analytical work.
- Communicated constantly with fellow peers about work flow and assist in various tasks when needed.
- Able to work well under pressure in a production style environment.
Lab Analyst
ExperTox, Inc.
06.2009 - 06.2012
- Managed testing, analysis, and reporting of unknown chemicals and toxins and unknown drugs in various specimens.
- Conducted specific forensic and clinical drug testing on an assortment of specimens and performed analysis in a timely manner.
- Troubleshoot and executed daily maintenance on GC/MS.
- Efficiently produced standards, controls, extraction solvents and buffers for use in testing.
- Used a Laboratory Information Management System to accession specimens into the laboratory and report and release results to clients.
- Followed Standard Operating Procedures and College of American Pathologist guidelines for forensic and clinical testing.
- Communicated effectively with fellow peers to complete a series of tasks.
- Worked well under pressure to complete requests in a timely manner.
Education
Bachelor of Science - Biomedical Sciences
Texas A&M University
Corpus Christi, TX06-2009
Skills
Exceptional verbal, written, and listening skills
Excellent interpersonal skills
Ability to work independently and in a team environment
Multilingual communication skills
Ability to handle complex responsibilities in a timely fashion
Excellent leadership and management skills
Experience with specimen processing, utilizing LIMS software, data entry, and reporting
Experience processing and testing a variety of clinical samples, including, blood/serum, nails, hair, and other specimens
Experience following proper laboratory safety protocols and regulations
Proficiency with laboratory equipment and software
Certification
Pharmaceutical Sales Certificate
Healthcare Rep Academy
Industry PSC Certification #212350526
Obtained: May 3, 2026
Timeline
Physics Teacher
Aldine Independent School District
07.2024 - 05.2026
Medical Teacher
Houston Independent School District
08.2023 - 06.2024
DNA Operations Laboratory Technician
Harris County Institute of Forensic Sciences
04.2021 - 11.2022
Investigator I – Food/NNA
Harris County Public Health
04.2018 - 04.2021
Chemist I
Airgas
06.2012 - 04.2018
Lab Analyst
ExperTox, Inc.
06.2009 - 06.2012
Bachelor of Science - Biomedical Sciences
Texas A&M University