Open To Work
Verified
This profile is verified using an email address.
Claysa Leon Higuera
Colton,CA
Summary
Recent Bachelor of Science in Biology graduate with hands-on laboratory experience in molecular biology, microbiology, and specimen analysis. Experienced in Polymerase Chain Reaction (PCR), agarose gel electrophoresis, DNA extraction, Sanger DNA sequencing, and laboratory documentation. Completed Phlebotomy Training Specialists certification with training in venipuncture, specimen processing, infection control, and patient care. Strong customer service, communication, and teamwork skills developed through retail, tutoring, and community outreach experience. Bilingual professional seeking opportunities in healthcare, laboratory science, biotechnology, research, and customer-focused environments.
Overview
5
5
years of professional experience
Work History
Cashier
Dollar Tree
Colton, CA
07.2025 - Current
• Processed customer transactions accurately and efficiently.
• Balanced cash drawers and maintained transaction accuracy.
• Assisted customers with purchases and product inquiries.
• Stocked merchandise and maintained store organization.
Cashier
DD's Discount
San Bernardino, California
07.2024 - 08.2024
Seasonal Hire
• Assisted customers in a fast-paced retail environment.
• Operated cash registers and processed transactions.
• Supported inventory stocking and merchandising activities.
Tutor
Valdez Education Services
San Bernardino, California
07.2023 - 08.2024
• Assisted students with academic assignments and homework.
• Developed strong communication and instructional skills.
• Monitored student well-being and reported concerns when appropriate.
Alternate Phone Banker
CNC Education Fund
Colton, CA
11.2022 - 06.2024
• Conducted outreach calls and gathered information from community members.
• Maintained professionalism while communicating with diverse populations.
• Accurately documented collected information.
Head Cashier
99 Cent Only Store
Colton, CA
04.2021 - 06.2022
• Managed register operations and cash reconciliation procedures.
• Performed safe counts and maintained cash-handling accuracy.
• Assisted customers and resolved concerns professionally.
• Coordinated with vendors and supported inventory management.
Education
Bachelor of Science - Biology
California State University, San Bernardino
San Bernardino, CA05-2026
Skills
LABORATORY & TECHNICAL SKILLS
Polymerase Chain Reaction (PCR)
Agarose Gel Electrophoresis
Sanger DNA Sequencing
DNA Extraction
Micropipetting Techniques
Microbiology Laboratory Procedures
Cell Biology Laboratory Procedures
Aseptic and Sterile Technique
Specimen Collection and Handling
Laboratory Documentation
Data Collection and Analysis
Laboratory Safety Protocols
Medical Terminology
Human Anatomy & Physiology
PROFESSIONAL SKILLS
Customer Service
Cash Handling
Register Reconciliation
Communication
Teamwork and Collaboration
Conflict Resolution
Active Listening
Organization
Time Management
Dependability
Bilingual (English/Spanish)
Certifications & Training
Phlebotomy Training Specialists, Certificate of Completion – Phlebotomy Training Program
• Venipuncture Techniques
• Capillary Blood Collection
• Specimen Collection and Processing
• Infection Control Procedures
• Patient Care and Communication
• Laboratory Safety Procedures
Research & Laboratory Experience
Isolate Identification Research Project
• Collected biological samples for microbial analysis.
• Performed DNA extraction procedures on collected specimens.
• Conducted Polymerase Chain Reaction (PCR) to amplify target DNA regions.
• Utilized Agarose Gel electrophoresis to verify successful amplification.
• Performed Sanger DNA sequencing for isolate identification.
• Analyzed genetic sequence data to identify unknown organisms.
• Maintained laboratory records and followed laboratory safety protocols.
• Applied scientific methodology and data analysis techniques throughout the project.
VOLUNTEER EXPEREINCE
National Marrow Donor Program (NMDP) Volunteer, February 2026
• Educated community members regarding stem cell donation.
• Assisted with donor registration and cheek-swab collection procedures.
Red Cross Blood Drive Assistant, September 2018
• Assisted blood donors and provided support during donation events.
• Helped maintain a positive donor experience.
Think Together Volunteer, December 2017 – December 2018
• Assisted students with homework and educational activities.
• Supported youth development and engagement programs.
WEB Crew Mentor, August 2016 – June 2017
• Assisted incoming students in adjusting to a new school environment.
• Participated in leadership and mentorship activities.
Languages
English
Native/ Bilingual
Spanish
Native/ Bilingual
Timeline
Cashier
Dollar Tree
07.2025 - Current
Cashier
DD's Discount
07.2024 - 08.2024
Tutor
Valdez Education Services
07.2023 - 08.2024
Alternate Phone Banker
CNC Education Fund
11.2022 - 06.2024
Head Cashier
99 Cent Only Store
04.2021 - 06.2022
Bachelor of Science - Biology
California State University, San Bernardino