Responsibilities
Laboratory Analysis
- Perform pesticide residue testing on food, agricultural, environmental, and related sample matrices.
- Conduct sample preparation, extraction, and clean-up procedures using approved analytical methods, including QuEChERS techniques.
- Prepare calibration standards, reference materials, reagents, and internal standards in accordance with laboratory procedures.
- Ensure traceability and accurate documentation of all analytical preparations and activities.
- Perform routine and non-routine analytical testing according to validated methods and work instructions.
- Review analytical results to ensure accuracy, completeness, and compliance with quality requirements.
- Ensure all assigned testing is completed within agreed turnaround times.
Instrument Operation and Maintenance
- Operate and maintain GC-MS and GC-MS/MS instrumentation for pesticide residue analysis.
- Perform instrument setup, calibration, tuning, performance verification, and routine maintenance activities.
- Monitor instrument performance and identify deviations from established operating parameters.
- Troubleshoot instrumentation and analytical issues and escalate technical concerns where necessary.
- Maintain instrument logbooks and maintenance records.
- Assist with the qualification and verification of new laboratory equipment where required.
Data Analysis and Reporting
- Process chromatographic data using approved software systems.
- Review chromatograms, retention times, ion ratios, peak identification, and quantification results.
- Verify analytical calculations and ensure compliance with reporting requirements.
- Maintain accurate and complete technical records in laboratory information management systems (LIMS).
- Generate test reports and analytical summaries in accordance with laboratory procedures.
- Ensure all reported data meets technical and quality requirements before release.
Quality Assurance and Compliance
- Ensure compliance with ISO/IEC 17025 requirements and the laboratory quality management system.
- Evaluate quality control results, including blanks, recoveries, duplicates, reference materials, and calibration verification standards.
- Monitor testing performance against established acceptance criteria.
- Identify and report non-conforming work in accordance with quality procedures.
- Participate in internal audits, proficiency testing schemes, and accreditation assessments.
- Support corrective action investigations and continuous improvement initiatives.
- Ensure laboratory activities comply with regulatory, legal, and client requirements.
Method Development and Validation
- Assist with the development, optimisation, verification, and validation of analytical methods.
- Conduct validation studies including selectivity, linearity, precision, accuracy, recovery, limits of quantification, and measurement uncertainty.
- Support implementation of new analytical methods and technologies.
- Maintain validation records and technical documentation.
- Assist in expanding laboratory testing capabilities and scope of accreditation.
Laboratory Safety and Housekeeping
- Maintain compliance with laboratory health, safety, and environmental requirements.
- Adhere to approved procedures for chemical handling, storage, and disposal.
- Ensure contamination control measures are implemented and maintained.
- Maintain cleanliness and organisation of laboratory work areas.
- Report safety hazards, incidents, and near misses in accordance with company procedures.
- Participate in laboratory safety initiatives and training activities.
Reporting and Communication
- Communicate analytical progress, delays, technical concerns, and testing challenges to laboratory management.
- Participate in laboratory meetings and technical discussions.
- Provide technical input to investigations, client queries, and improvement projects.
- Maintain effective communication with laboratory personnel and cross-functional stakeholders.
- Support management reporting through the provision of testing and performance data
- Grade 12 (Matric).
- Diploma or Degree in Chemistry, Analytical Chemistry, Biochemistry, Food Science, or a related scientific discipline.
- Training in chromatography and mass spectrometry techniques will be advantageous.
- ISO/IEC 17025 laboratory system training will be advantageous.
- Additional analytical chemistry or laboratory quality management qualifications will be advantageous.
- Minimum of 2 years' experience in an analytical laboratory environment.
- Hands-on experience operating GC-MS and/or GC-MS/MS instrumentation.
- Experience in pesticide residue analysis or trace-level chemical analysis.
- Experience working within an ISO/IEC 17025 accredited laboratory.
- Experience with chromatographic data processing and result interpretation.
- Experience with sample extraction and clean-up techniques.
- Experience maintaining laboratory records and documentation.
- Experience with proficiency testing and quality control programmes will be advantageous.
- Advantageous Experience
- Multi-residue pesticide analysis in food and agricultural products.
- Method development and validation using GC-MS/MS systems.
- QuEChERS extraction techniques across multiple sample matrices.
- Experience using Shimadzu analytical instruments.
- Experience with LabSolutions software.
- Experience operating LC-MS/MS instrumentation.
- Strong analytical and problem-solving skills.
- Excellent attention to detail and accuracy.
- Strong technical troubleshooting capabilities.
- Good organisational and time management skills.
- Ability to interpret complex analytical data and scientific information.
- Effective verbal and written communication skills.
- Strong record-keeping and documentation abilities.
- Ability to manage multiple priorities and meet deadlines.
- Proficiency in Microsoft Office applications.
- Ability to work effectively both independently and within a team environment.
- Gas Chromatography-Mass Spectrometry (GC-MS).
- Gas Chromatography Tandem Mass Spectrometry (GC-MS/MS).
- Pesticide residue testing methodologies.
- Chromatographic theory and analytical chemistry principles.
- Sample preparation and extraction techniques.
- ISO/IEC 17025 quality management systems.
- Quality control and quality assurance practices.
- Method validation and verification principles.
- Measurement uncertainty concepts.
- Laboratory safety and chemical handling requirements.
- Data integrity and traceability requirements.
- Laboratory Information Management Systems (LIMS).
- Ability to work in a fast-paced, high-throughput laboratory environment.
- Commitment to maintaining scientific integrity and ethical laboratory practices.
- Strong focus on quality, accuracy, and customer service.
- Ability to maintain confidentiality of laboratory and client information.
- Willingness to participate in training, proficiency testing, and continuous professional development.
- Ability to work additional hours when operational requirements dictate.
- Strong commitment to health, safety, and environmental compliance.
High degree of professionalism and adherence to company values:
- Integrity
- Courage
- Care
- Passion
- Innovation
- Accountability
- Preference will be given to Employment Equity candidates.