QC Supervisor / Laboratory Analyst

About the role

Take full day-to-day ownership of the quality control laboratory — testing, instrumentation, documentation and organisation. The successful candidate will be trained and assessed by an external laboratory consultant during the first three months.

Key responsibilities

• Perform routine analysis of patchouli oil, clove oil and clove-derived aroma chemicals: acid value, specific gravity, optical rotation, refractive index and colour
• Operate Shimadzu GC-FID and GC-MS: sample preparation, injection, peak integration, library searching and interpretation of results
• Determine patchouli alcohol content, eugenol content and purity of derivatives in accordance with the applicable standard
• Screen incoming and outgoing material for adulteration and unexpected components using GC-MS
• Verify system suitability before releasing any analytical result
• Investigate out-of-specification and anomalous results, document the investigation, and escalate promptly to the Technical Manager

About you

• D3 or S1 in Chemistry, Chemical Analysis or Chemical Engineering; or SMK-SMAK graduate with strong relevant experience
• Minimum 3 years hands-on experience in an analytical or quality control laboratory
• Practical experience operating gas chromatography is essential; GC-MS operation and interpretation is strongly preferred
• Able to read, understand and apply English-language ISO methods and customer specifications
• Competent in Microsoft Excel and in maintaining accurate written records
• Demonstrated integrity in reporting analytical results, including unfavourable ones
• Methodical, organised, and able to work independently with limited supervision
• Experience with essential oils, aroma chemicals, flavour and fragrance, food or agro-commodity testing
• Hands-on experience with Shimadzu instruments and LabSolutions software
• Experience developing or transferring GC methods