GERALD GUIMARAES
Stockton
Summary
Dedicated Clinical Laboratory Scientist with 11 years of experience, including 7 years in leadership roles. My professional philosophy centers on continuous improvement and collaboration, which I apply to enhance laboratory processes and foster a supportive team environment.
Overview
14
14
years of professional experience
1
1
Certification
Work History
Micro Lab Manager
Eurofins Ascend
Sunnyvale
05.2025 - Current
- Managed laboratory operations to ensure adherence to safety and quality standards.
- Oversaw staff training on laboratory protocols and best practices.
- Coordinated inventory management for laboratory supplies and equipment.
- Implemented process improvements to enhance workflow efficiency in the lab.
- Led troubleshooting efforts for equipment malfunctions or operational issues.
- Facilitated communication between departments regarding research and testing initiatives.
- Supervised cleaning and maintenance of laboratory equipment to prevent errors and breakdowns.
- Provided technical guidance to staff members regarding complex testing projects.
- Organized team activities to build camaraderie and foster pleasant workplace culture.
Lab Manager
Boomerang Healthcare
Walnut Creek
08.2024 - Current
- Manages lab licenses, lab audits and proficiency testing
- Develops and or chooses test procedures relevant to the practice
- Designs and execute validation processes
- Creates/updates and/or approves and reviews laboratory policies, SOPs and forms
- Performs administrative duties such as timecards approvals and management matters including purchasing of lab equipment and supplies
Clinical Lab Scientist II
San Ramon Regional Medical Center
San Ramon
12.2019 - 11.2025
- Conduct and analyze diagnostic tests in Hematology, Chemistry, Microbiology, Urinalysis, and Coagulation to provide accurate and timely results.
- Ensure adherence to standard operating procedures and quality control measures.
- Experience in daily maintenance and analysis using: Beckman Coulter UniCel DxC 600, STAGO STA Compact, IMMUCOR GALILEO ECHO, Siemens CLINITEK, Sysmex XN 2000, Verigene, Vitek Compact and Quidel Sofia 2.
- Participated in CAP, and API proficiency samples.
- Successfully modified laboratory workflows based on instrument availability and team endorsement, resulting in a significant reduction of turnaround time by over 8 hours.
- Managed High Sample Volume During Peak Season.
- Volunteered to work consecutive early morning shifts for three weeks during the holiday season, handling an extra volume of 1500-1800 samples per day.
General Lab Supervisor
Guardant Health
Redwood City
04.2021 - 07.2024
- Managed night shift operations, including team and process establishment for continuous business operations.
- Supervised daily laboratory operations for 18 staff, scheduling, troubleshooting, and resolving high complexity issues.
- Conducted employee performance evaluations, authored SOPs, QC forms, and maintained laboratory equipment.
- Coached and mentored staff, enhancing troubleshooting skills and professional.
- Led the testing and validation of new laboratory equipment and procedures; participated in assay improvements and validations.
- Prepared for inspections, ensured adherence to quality standards, and contributed to quality assurance activities.
- Communicated technical information clearly to both technical and non-technical audiences.
Sr. Clinical Laboratory Scientist
Myriad Genetic Women Health
South San Francisco
12.2019 - 03.2021
- Performing high-complexity testing that requires the exercise of independent judgment and responsibility, with minimal supervision by the laboratory director or general supervisor, in only those specialties or sub-specialties in which they are qualified by education, training, and experience.
- Interacting and communicating with non-laboratory staff to ensure an efficient workflow.
- Following the laboratory's procedures for specimen handling and processing, test analyses, reporting, and maintaining records of test examinations.
- Following the laboratory's established policies and procedures whenever test systems are not within the laboratory's established acceptable levels of performance.
- Documenting all corrective actions taken when test systems deviate from the laboratories established performance specifications.
- Performing high-complexity testing and being the on-site delegated supervisor (To perform the duties of the general supervisor, when no general supervisor is present).
- Providing supervision to CLIA laboratory personnel.
Clinical Laboratory Scientist Generalist
Sutter Health Alta Bates
Oakland
10.2018 - 11.2019
- Conduct and analyze diagnostic tests in Hematology, Chemistry, Microbiology, and Urinalysis to provide accurate and timely results.
- Ensure adherence to standard operating procedures and quality control measures.
- Performed calibration, maintenance and quality control on: Siemens Dimension Vista, Abbott Architect, Siemens Clinitek and Verify Now.
- Performed CAP competencies.
Lead Clinical Lab Scientist Microbiology
San Ramon Regional Medical Center
San Ramon
07.2018 - 11.2019
- Renew and review manual procedures and create new QC Worksheets and IQCP JCAHO Survey.
- Modify the Micro Lab testing list process and integrate a billing code into the Cerner system.
- Communicated with IT department to help develop QC charting.
- Successfully Passed JCAHO Accreditation and Remerged ABG (Arterial Blood Gas) Laboratory.
- Passed JCAHO accreditation within the first three weeks of employment by quickly adapting to and meeting the required standards.
- Successfully reestablished the ABG laboratory after it failed CAP surveys three times prior to my hiring.
Lab Manager
Kindred San Leandro Hospital
San Leandro
12.2017 - 11.2018
- Managed 8 Clinical Lab Scientists and 4 Phlebotomists, overseeing test performance in microbiology, chemistry, hematology, and more.
- Led the purchase of lab equipment and supplies, ensuring compliance with State and Federal standards.
- Reviewed test results for quality control and responded to compliance issues, contributing to 2 successful JCAHO surveys.
- Conducted training for clinical lab scientists, nurses, and phlebotomists; optimized lab policies and implemented new tests.
- Managed budget and vendor contracts, ensuring efficient operations and compliance with CAP and American Proficiency Institute standards.
- Implemented infection control measures, directly contributing to Alameda County reports on CRE and MDRO.
- Be in charge of Point of Care Lab.
- Coordinate training and competencies of 35 Respiratory Therapists.
Clinical Lab Scientist (Microbiology & Environmental)
Ascend Clinical
Redwood City
09.2014 - 11.2018
- Colony account testing of products and water.
- Agilent, Chromatography essays.
- Microbiological examination of Water.
- Environmental monitoring.
- Anti-microbial effectiveness testing.
- Occult Blood.
- Identification of isolates.
- Quality Control.
- Blood, urine, fluid and miscellaneous samples process.
- Analyzing internal Data.
- CAP survey & proficiencies.
Lead Clinical Lab Scientist (Microbiology)
Sutter Health & Mill's Peninsula
Burlingame
01.2017 - 05.2017
- Appointed as the interim Lead within my first month of employment.
- Responsible for the creations and maintenance of all policies and procedures that address microbiology operations, objectives, QA/QC, safety, infection control, blood borne pathogens, and personnel management.
- CAP survey and proficiency test.
- Verification and validation experience in MicroScan.
- Experience in any kind of cultures (Respiratory, secretions, wounds, fluids, blood).
- Mycology; Wet Mount and identification of selective medias for fungus.
- BD Affirm VPII, Sofia Quidel.
- Giemsa stain (Parasitology).
Clinical Lab Scientist (Microbiology & Molecular Biology)
Seton Medical Center
Daly City
11.2016 - 04.2017
- Create new Microbiology QC worksheet.
- Identification and process with Micro Scan.
- Read of the cultures and Isolates from wound, blood, respiratory, urine and any kind of sample.
- PCR for Clostridium Difficile.
- Occult Blood.
- Correction Report for final daily reports.
- Equipment Used: Bactec, Micro Scan, Cepheid (PCR).
CLS (Microbiology & Molecular Biology)
Theranos
Newark
04.2016 - 10.2016
- Test performance and reporting reports.
- Creating Standard Operation Manual, root causes.
- Techniques performed included analysis of bacterial cultures, ELISA, PCR and susceptibility method.
- Equipment used: VITEK MS/ MALDI-TOF, Bio Rad Evolis, Abbott m2000 and Previ Color Gram Stain.
Clinical Lab Scientist
Cayetano Heredia Hospital
Lima
03.2012 - 02.2013
Education
Master of Science - Healthcare Leadership
Western Governor Univeristy
Salt Lake City, UT12-2020
Bachelor of Science - Clinical Laboratory Scientist
Peruvian Cayetano Heredia University
12-2011
Skills
- Quality Control and Assurance
- Staff training
- Laboratory work supervision
- Regulatory Compliance
- Microsoft Office
- Team Management
- Strategic Planning
- Validation
- Inventory Management
- JCAHO Inspections
Certification
- Clinical Laboratory Scientist Generalist, California Department Public Health (CDPH)
- CLSI Laboratory Quality Management System Program, Clinical and Laboratory Standards Institute (CLSI)
- Lab Management University (LMU) Program, American Society Clinical Pathology (ASCP)
- Medical Laboratory Scientist, American Society Clinical Pathology (ASCP)
Accomplishments
• Guardant Health, participate to built Night Shift Team from the Ground Up with the hiring and training senior CLS.
• Myriad Women’s Health, Managed High Sample Volume During Peak Season.
• Kindred San Leandro Hospital, Successfully Passed JCAHO Accreditation and Remerged ABG Laboratory.
• Ascend Clinical, Covered All Holidays During the First Two Years of employment due to short staffing.
• Myriad Women’s Health, Managed High Sample Volume During Peak Season.
• Kindred San Leandro Hospital, Successfully Passed JCAHO Accreditation and Remerged ABG Laboratory.
• Ascend Clinical, Covered All Holidays During the First Two Years of employment due to short staffing.
Languages
Spanish, Native
Personal Information
Title: Clinical Laboratory Scientist
Timeline
Micro Lab Manager
Eurofins Ascend
05.2025 - Current
Lab Manager
Boomerang Healthcare
08.2024 - Current
General Lab Supervisor
Guardant Health
04.2021 - 07.2024
Clinical Lab Scientist II
San Ramon Regional Medical Center
12.2019 - 11.2025
Sr. Clinical Laboratory Scientist
Myriad Genetic Women Health
12.2019 - 03.2021
Clinical Laboratory Scientist Generalist
Sutter Health Alta Bates
10.2018 - 11.2019
Lead Clinical Lab Scientist Microbiology
San Ramon Regional Medical Center
07.2018 - 11.2019
Lab Manager
Kindred San Leandro Hospital
12.2017 - 11.2018
Lead Clinical Lab Scientist (Microbiology)
Sutter Health & Mill's Peninsula
01.2017 - 05.2017
Clinical Lab Scientist (Microbiology & Molecular Biology)
Seton Medical Center
11.2016 - 04.2017
CLS (Microbiology & Molecular Biology)
Theranos
04.2016 - 10.2016
Clinical Lab Scientist (Microbiology & Environmental)
Ascend Clinical
09.2014 - 11.2018
Clinical Lab Scientist
Cayetano Heredia Hospital
03.2012 - 02.2013
Master of Science - Healthcare Leadership
Western Governor Univeristy
Bachelor of Science - Clinical Laboratory Scientist
Peruvian Cayetano Heredia University