Mzingisi Tshemese

Results-driven Process Operator and Laboratory Technician with a Bachelor of Science in Biotechnology and over 7 years of experience in laboratory analysis, chemical manufacturing, and quality control. Proven expertise in operating and calibrating laboratory equipment (HPLC, pH meter, spectrophotometer), conducting microbiological and chemical testing, and adhering to Good Manufacturing Practices (GMP) and Standard Operating Procedures (SOPs). Skilled in data recording, batch processing, equipment maintenance, and safety compliance.

Recognised for strong problem-solving abilities, attention to detail, and the ability to work effectively under pressure. Actively seeking opportunities to apply technical skills in a regulated, process-driven environment. Willing to relocate.

Process Operator (Grade 3) - Fine Chemicals (Aspen) - Western Cape

(2025-01)

• Operate multiple stages of Vinblastine and Vincristine production, ensuring strict adherence to Master Batch Production Records and Standard Operating Procedures (SOPs)
• Interpret chromatogram results from High-Performance Liquid Chromatography (HPLC) to assess product purity and consistency
• Maintain accurate and detailed logbooks and batch production records for compliance and traceability
• Collaborate with Quality Control department to collect, analyse, and report test results, ensuring product meets stringent quality standards
• Perform routine distillation processes and calibration of laboratory and production equipment including HPLC, pH meters, and temperature control instruments
• Conduct regular housekeeping, maintain a clean and safe work environment in compliance with health and safety regulations
• Troubleshoot process deviations promptly to minimise production downtime and maintain output efficiency

Senior Laboratory Technician - Cape Oil and Margarine - Cape Town, Western Cape

(2019-02 - 2024-12)

• Led internal audits to ensure compliance with Good Manufacturing Practices (GMP) and company quality management systems
• Performed comprehensive monthly environmental microbiological testing to monitor production area cleanliness and product safety
• Executed wet chemistry and microbiological analyses on raw materials, in-process, and finished goods to guarantee product quality and safety
• Investigated and followed up on non-conformances and customer complaints to identify root causes and implement corrective actions
• Documented and maintained accurate test results and reports for regulatory inspections and quality assurance
• Supported process optimisation initiatives by analysing lab data and providing feedback to production teams

Laboratory Technician - Cape Oil and Margarine - Cape Town, Western Cape

(2017-03 - 2019-02)

• Conducted routine analysis of margarine and vegetable oil samples using validated test methods to ensure compliance with product specifications
• Prepared and standardised laboratory reagents and calibration standards to maintain accuracy and reliability of tests
• Verified and calibrated laboratory equipment daily, including spectrophotometers and other analytical instruments
• Collected and stored retention samples to enable traceability and quality investigations
• Performed microbiological testing including total viable counts (TVC), yeast and mould counts, and coliform detection to ensure product safety
• Prepared and issued Certificates of Analysis (COAs) based on product attribute evaluations for customer approval
• Conducted effluent water testing for pH, total dissolved solids (TDS), and chemical oxygen demand (COD) to meet environmental compliance
• Assisted with internal quality audits and contributed to continuous improvement efforts within the laboratory

Bachelor of Science - Biotechnology - University of the Western Cape (2017)

National Senior Certificate - Usasazo High School (2008)