Pei Mun Woo
Medical Lab Technologist / Chemist
Singapore
Summary
Entrepreneurial and innovative Analytical Scientist with 10+ years’ experience spanning forensic science, clinical diagnostics, food safety, and biotechnology. Skilled in advanced analytical techniques including LC-MS/MS, GC-MS/MS, Raman spectroscopy, and NGS, with expertise in method development, validation, and regulatory compliance (ISO, GMP, SAC-SINGLAS). Experienced in managing external quality assurance (EQA) programs such as CAP, RCPA, UKNEQAS, UKWEQAS, and HSA, including planning, result review, and investigation. Proven ability to lead cross-functional projects, mentor junior staff, and consistently deliver accurate, high-quality analytical results in both research and regulated environments.
Overview
17
17
years of professional experience
Work History
Medical Lab Technologist
Singapore General Hospital
01.2025 - Current
- Company Overview: A not-for-profit institution, owned by the government of Singapore and the flagship hospital of the public healthcare system
- Conducted routine and specialized clinical assays, including catecholamines (CATS), metanephrines (METS), vitamin A, E, and D, immunosuppressant drug monitoring, urine chemistry, condensed chemistry assay, etc., using LC-MS/MS , HPLC-ECD, DxC 700 AU Chemistry Analyzer, AU5800 Chemistry Analyzer, UniCel DxI 800 Access Immunoassay System, etc.
- Managed External Quality Assurance (EQA) proficiency testing programs, including CAP, RCPA, UK NEQAS, UK WEQAS, and HSA schemes
- Coordinated sample shipment and arrangement with designated stations, ensuring compliance with submission timelines
- Performed EQA data checking, result review, and root cause investigations for discrepancies, implementing corrective and preventive actions (CAPA) to maintain accreditation standards.
- Ensure accurate and timely reporting of test results for patient diagnosis.
- Maintain and operate laboratory equipment, ensuring proper calibration and safety protocols.
- Follow established quality control procedures to ensure test accuracy.
- Maintain patient confidentiality and comply with all hospital policies and regulations.
- Provide support in troubleshooting technical issues related to laboratory tests and equipment.
- Enhanced laboratory efficiency through maintaining and calibrating advanced equipment regularly.
Manufacturing System Test Engineer
Illumina Singapore Pte. Ltd.
02.2022 - Current
- Company Overview: A global genomics and human health leader innovating the future of precision health
- Monitor, trend, report, and drive improvement for new product based on performance matrix such as % Passing Filter, % Occupied, Error rate, phasing, pre-phasing, yield, Run Cycle Time, etc.
- Library preparation for sequencing (measured concentration using Bioanalyzer, Qubit, Nanodrop) etc.
- Collaborate with cross-functional teams (system integration scientists, software engineers, firmware engineers, and hardware engineers) on new product development (NPI)-related workflows, such as investigations on some technical problems, etc. Familiar with the basic Linux operating system.
- Participate in factory immersion activities to understand the needs of field service and improve on the program offering.
- Establish and maintain databases of field return instrument failures and their root causes.
- Perform data trending analysis, and construct and execute designed experiments to address field return failure.
- To identify risk and provide recommendations for risk mitigation in areas of responsibility.
- Drive and implement continuous improvement activities.
- Follow standard procedures and protocols to support verification and validation activities.
- Provide guidance and supervision to junior staff and technicians.
Analytical Chemist
Nestle R&D Center (Pte.) Ltd.
06.2013 - 02.2022
- Company Overview: A global and regional product development center of NESCAFE White Coffee Cup, MILO and Culinary products.
- Implemented innovative strategies and processes for the routine analysis (Quality control) of food samples using LC/MS/MS, GC/MS/MS, DNA Extraction, PCR, Agilent Gel Electrophoresis, DNA sequencing technology and ELISA. Demonstrated proficiency in food contaminants/ quality control testing:
- Extraction of contaminants’ analyte in food samples by LC/MS/MS, GC/MS/MS and Gel Fermentation Chromatography (GPC) (Agilent LC1290 Infinity II, Agilent HPLC1290, Agilent Triple Quadruple MS 6460, ABSciex Triple Quadruple MS API 6500, API5000, API5500, API6500+, Agilent 7010 GCMS Triple Quad, Agilent 7890 GC System, Waters UHPLC Class PDA coupled with Acquity QDa Detector and rotary evaporator).
- Extraction of unknown/complaint samples using LCHRMS (Thermo UHPLC coupled with Q Exactive), Steam Distillation method and GCMS/MS.
- Quantitative immunoassay used for the detection of Gluten (ELISA) from wheat, rye or barley in raw materials and finished products, data processing and performance-driven data analytics.
- Identification of meat, fish and plant species by Next Generation Sequencing (NGS). The principle of the method include:
- - DNA Extraction by Nanodrop (Nanodrop 8000, Fisher, No. 13-400-413)
- - PCR with SGS All Species ID DNA kits (PCR Thermocycle – Thermo ProFlexTM 3x32-well PCR System)
- - Gel Electrophoresis (Thermo E-Gel Power Snap Electrophoresis System Starter Kit, Ex 2%).
- Chip Loading on Ion Chef (Thermo Ion Chef Food Protection instrument, No. A395134)
- Sequencing on Ion S5 (Thermo Ion GeneStudio S5 Food Protection Instrument, No. A395133)
- Data Analysis with Thermo All Species ID Software, No. A38458
- Result Reporting
- Support global QC functionality, operations, and spearhead implementation of Lean analytics and methodology to drive efficiency and improve process metrics.
- Practices GLP in a Singapore Accreditation Council - Singapore Laboratory Accreditation Scheme (SAC-SINGLAS) accredited laboratory.
- Active participation in internal and external audits.
- Experienced in using Empower software, analyst software (ABSciex), multi quant software (ABSciex) and mass hunter software (Agilent) for data processing.
- Accomplishments:
- Competent in quality control testing, data processing, reporting, enter, review and validate analytical results and test report in a timely and promptly.
- Plan resources to support routine and non-routine sample testing.
- Take part in general daily lab activities, including safety, equipment maintenance, housekeeping, audit, calibration, and inventory, etc.
- Competent in performing necessary preventive maintenance and trouble-shooting on LC/MS/MS systems.
Chemist
Chia Tai Feedmill/Crown Pacific Biotechnology Pte Ltd
07.2011 - 05.2013
- Company Overview: The leading premix manufacturer in the Asia-Pacific region, producing more than 12,000 metric tons of premixes/year.
- Oversaw successful chemistry assays using wet chemistry methods from enzyme preparation, vitamin premix, and feed samples. Determination of vitamin assays (vitamin A, B1, B2, B3, B6, B9, C, D, E, K) using Shimadzu HPLC PDA and UV-Vis Spectrophotometer, determination of phytase activity using UV-Vis spectrophotometer, xylanase activity using UV-Vis spectrophotometer, xylanase activity in Feeds & raw materials by viscometry and determination of Quantum feed additive in supplement and feed samples using ELISA, calibration and maintenance equipment, ensured constant safety adherence, and involved in regulatory affairs - product registration activity.
- Developed a deep understanding and working knowledge of new product development in and submission according to regulatory governance and engaged in risk management planning. Manage and control all submission dossiers and related activities in accordance with and regulatory guidelines.
- Key Accomplishments:
- Successfully passed the GMP and ISO 9001:2008 Internal and Halal certified manufacturer internal and external audits.
- Recognized for mentoring and training a new chemist and QC staff member in proper routine analysis including vitamin and moisture analysis tests.
- Worked with a Quality Manager in Jakarta to Perform a routine quality audit; delivered over five product registrations and documentation including GMP and COA certificates according to individual company regulatory compliance.
Chemist
Expert Chemical Supply and Service SDN, BHD
12.2010 - 04.2011
- Company Overview: A distributor of janitorial, skin and personal care, and food service supplies
- Coordinated analytical chemistry assays and tested physical and chemical characteristics of raw materials and in-process and semi-finished products. Conducted various types of titrations to support manufacturing batches. Checked pH, density, and viscosity of disinfectants; prepared buffer solutions; and held responsibility for the microbiology sampling and testing of utilities, raw materials, in-process and semi-finished/finished products, and environmental monitoring.
- Key Accomplishments:
- Executed strategic process improvements to successfully develop four methods.
- Supported the creation and setup of all laboratory operations and organizational design.
- Performed technical laboratory functions in compliance with regulatory agencies and safety requirements.
- Enhanced product quality by developing and optimizing chemical processes and procedures.
- Coordinated and performed analytical tests to comply with established standards and specifications.
- Maintained organized, safe and efficient laboratory environment to minimize accidents and prevent cross contamination.
- Modified and adapted standard methods and procedures to solve analytical problems.
- Collaborated with interdisciplinary teams to solve complex problems in product development and scaleup.
- Established quality control measures for instrumentation and monitored data quality to operate instrument with control limits.
- Mentored junior chemists, providing guidance on industry best practices and career development opportunities.
- Repaired, calibrated and safely operated laboratory equipment to reduce costly instrument downtime.
- Streamlined testing procedures, ensuring accurate results while minimizing turnaround time.
- Cleaned and organized laboratory and kept supplies well-stocked to save time, money and promote laboratory efficiency.
- Contributed to team discussions and new project initiatives to advance progress and optimize profitability.
- Assisted with collecting, identifying and packaging hazardous and non-hazardous waste products to comply with Resource Conservation and Recovery Act regulations.
- Performed standardized tests on organic and inorganic compounds to observe fundamental differences in properties.
- Developed laboratory testing programs and data analysis while adhering to SOPs, ECOs, batch records and work instructions.
- Increased laboratory efficiency by implementing new software programs for data analysis and management.
- Managed multiple projects simultaneously, ensuring timely completion within budget constraints while maintaining high-quality output standards.
- Prepared waste drums for pick-up and delivery to comply with local, state and federal regulations for treatment and disposal of hazardous waste.
- Improved laboratory efficiency with implementation of robust safety protocols and training sessions.
- Enhanced public understanding of chemistry by participating in community outreach and educational programs.
- Enhanced team knowledge and skills by conducting regular training sessions on latest chemical analysis techniques.
- Conducted comprehensive chemical analyses for quality control, ensuring adherence to industry and safety standards.
- Collaborated with product development teams, translating research findings into actionable insights for product innovation.
- Reduced waste and improved resource utilization by implementing green chemistry principles in product development.
- Streamlined sample testing procedures, significantly reducing turnaround times without compromising accuracy.
- Synthesized new compounds, leading to development of innovative products that met market needs.
- Streamlined communication between chemistry and quality assurance departments, enhancing overall product development process.
- Improved safety, conducting thorough risk assessments for laboratory procedures and chemical handling.
- Led cross-functional teams in research projects, fostering collaboration and innovation across departments.
- Led migration to new laboratory information management system, improving data management and accessibility for research team.
- Developed and maintained accurate records of experimental data, contributing to integrity and reproducibility of research findings.
- Pioneered use of alternative raw materials, reducing costs and improving sustainability of production processes.
- Facilitated patenting process for novel chemical entities, protecting intellectual property and fostering innovation.
- Developed custom chemical solutions for specific client needs, fostering strong customer relationships and enhancing satisfaction.
- Identified and resolved technical issues in production processes, ensuring uninterrupted operations and product quality.
- Carried out laboratory tests and experiments to analyze, identify and isolate chemical compounds.
Chemist
Yakin Invest Corporation SDN, BHD
07.2008 - 05.2010
- Company Overview: A biotechnology-based skin care manufacturer
- Coordinated analytical chemistry assays and performed routine laboratory testing on raw materials, in-process and semi-finished skin care samples, and finished goods. Assisted in small-scale skin care production before the transition from small-scale to manufacturing. Collaborated with R&D in the physical testing needs to meet goals of the manufacturing plant. Experienced with using appropriate analytical methods on pH meters, viscometers, density meters, and physical testing and held responsibility for the microbiology sampling and testing of raw materials, in-process and semi-finished/finished products, and environmental monitoring. Participated in the investigation of non-conformances, out-of-specification results, internal deviation, and customer complaints.
- Key Accomplishments:
- Successfully passed the GMP, QMS ISO 9001:2008, and Halal-certified manufacturer internal and external audits.
- Contributed to team discussions and new project initiatives to advance progress and optimize profitability.
- Maintained an organized, safe, and efficient laboratory environment to minimize accidents and prevent cross-contamination.
- Modified and adapted standard methods and procedures to solve analytical problems.
- Collaborated with interdisciplinary teams to solve complex problems in product development and scale-up.
- Established quality control measures for instrumentation and monitored data quality to operate the instrument with control limits.
- Mentored junior chemists, providing guidance on industry best practices and career development opportunities.
- Repaired, calibrated, and safely operated laboratory equipment to reduce costly instrument downtime.
- Maintained an organized, safe, and efficient laboratory environment to minimize accidents and prevent cross-contamination.
- Collaborated with interdisciplinary teams to solve complex problems in product development and scale-up.
- Enhanced product quality by developing and optimizing chemical processes and procedures.
- Coordinated and performed analytical tests to comply with established standards and specifications.
- Collaborated with interdisciplinary teams to solve complex problems in product development and scale-up.
- Established quality control measures for instrumentation and monitored data quality to operate the instrument with control limits.
- Repaired, calibrated, and safely operated laboratory equipment to reduce costly instrument downtime.
- Performed technical laboratory functions in compliance with regulatory agencies and safety requirements.
- Maintained an organized, safe, and efficient laboratory environment to minimize accidents and prevent cross-contamination.
- Collaborated with interdisciplinary teams to solve complex problems in product development and scale-up.
- Established quality control measures for instrumentation and monitored data quality to operate the instrument with control limits.
- Cleaned and organized laboratory and kept supplies well-stocked to save time, money and promote laboratory efficiency.
- Streamlined testing procedures, ensuring accurate results while minimizing turnaround time.
- Repaired, calibrated and safely operated laboratory equipment to reduce costly instrument downtime.
- Increased laboratory efficiency by implementing new software programs for data analysis and management.
- Managed multiple projects simultaneously, ensuring timely completion within budget constraints while maintaining high-quality output standards.
- Streamlined sample testing procedures, significantly reducing turnaround times without compromising accuracy.
Education
Master of Science - Forensic Science
National University of Singapore
Singapore06.2025
Bachelor of Science - Biotechnology (Honors)
University Tunku Abdul Rahman
Malaysia05.2008
Diploma - Chemistry and Biology
University College Tunku Abdul Rahman
Singapore05.2006
Timeline
Medical Lab Technologist
Singapore General Hospital
01.2025 - Current
Manufacturing System Test Engineer
Illumina Singapore Pte. Ltd.
02.2022 - Current
Analytical Chemist
Nestle R&D Center (Pte.) Ltd.
06.2013 - 02.2022
Chemist
Chia Tai Feedmill/Crown Pacific Biotechnology Pte Ltd
07.2011 - 05.2013
Chemist
Expert Chemical Supply and Service SDN, BHD
12.2010 - 04.2011
Chemist
Yakin Invest Corporation SDN, BHD
07.2008 - 05.2010
Master of Science - Forensic Science
National University of Singapore
Bachelor of Science - Biotechnology (Honors)
University Tunku Abdul Rahman
Diploma - Chemistry and Biology
University College Tunku Abdul Rahman