Vacancies at TMHS Group March 2026, TMHS Group Limited is a locally registered company providing Emergency Medical Services, Waste and Environmental Management, Occupational Health and Safety, both local and international, and Medical Supplies Services. Currently, it is seeking Environmental Laboratory Staff who are self-motivated, committed, and results-driven to work with the company in the Environmental Laboratory under the Waste and Environmental Subsidiary.
1. Laboratory Analyst and Quality Control Officer / Supervisor (1 Position)
Location: TMHS Kisarawe Plant
Key Responsibilities
- Sample Testing:Â Perform physical, chemical, or microbiological analyses of Air, water, Soil etc.)
- Instrument Calibration:Â Operate, calibrate, and perform routine maintenance on laboratory equipments
- Data Analysis:Â Record and analyze test results, ensuring accuracy and precision in reporting.
- Method Development:Â Assist with analytical method validation and troubleshooting.
- Documentation:Â Maintain meticulous records of experiments, data, and observations in compliance with GLP (Good Laboratory Practices)
- Compliance & Standards: Ensure all processes conform to industry, regulatory, and compliance standards for ISO 17025, TBS, NEMC, TMDA, GCLA, etc.)
- SOP Development: Write, review, and update laboratory Standard Operating Procedures (SOPs) and safety protocols.
- Non-Conformance Investigation:Â Identify quality gaps, investigate root causes of deviations, and implement corrective/preventative actions.
- Auditing:Â Conduct internal audits and monitor laboratory processes to ensure adherence to safety and quality protocols.
- Training & Reporting:Â Train staff on quality procedures and prepare detailed reports for management regarding quality standards.
Required Skills and Qualifications
- Education: At least a Bachelor’s degree in Laboratory Science and Technology or Chemistry, Biology, or related fields from a recognized University or College, alongside proficiency in laboratory techniques.
- Experience:Â Previous experience in a laboratory setting, preferably in QC or QA, is highly desirable (often 1-5+ years).
- Certifications: Certifications in quality control are an added advantage
- Regulatory Knowledge: Deep understanding of Good Laboratory Practices (GLP), ISO 17025, TBS, GCLA, TMDA, as well as NEMC standards
- Analytical Techniques: Proficiency in using laboratory equipment such as Gas Chromatography (GC), mass spectrometry, etc.
- Data Analysis:Â Ability to interpret data, perform statistical process control, and use related software tools.
- Documentation:Â Experience in maintaining detailed records within a Quality Management System (QMS).
- System Knowledge:Â Familiarity with Laboratory Information Management Systems (LIMS).
- Attention to Detail:Â Meticulous approach to testing and recording data to ensure accuracy.
- Problem-Solving:Â Ability to troubleshoot equipment, investigate OOS (Out of Specification) results, and conduct root cause analysis.
- Communication:Â Strong verbal and written skills for reporting findings to technical and non-technical stakeholders.
- Teamwork and Independence:Â Capability to work collaboratively or independently, often in fast-paced, high-pressure environments.
Send your CV and a copy of your certificates via recruitment@tmhsgoup.com before 10th April 2026
2. Laboratory Technician (1)
 Location: Kisarawe Plant
Reports to:Â WNE Manager
Key Responsibilities
- Sample Processing:Â Receive, label, analyse, and store samples, specimens, or products.
- Equipment Maintenance: Calibrate, clean, sterilize, and troubleshoot laboratory equipment.
- Testing & Analysis:Â Conduct routine and specialized tests for Environmental parameters (e.g., chemical and biological analysis of samples)
- Data Management:Â Record, analyse, and interpret data using computer software, LIMS (Laboratory Information Management Systems), and databases.
- Safety Compliance:Â Adhere to strict safety protocols, including PPE usage, to manage hazardous materials.
- Administrative Support:Â Maintain inventory, order supplies, and document procedures.
- Reporting: Reporting laboratory findings to supervisors
Required Skills and Qualifications
- Technical Skills:Â Proficiency with lab instrumentation and data management software.
- Attention to Detail:Â High accuracy in recording data and following strict, complex, or repetitive procedures.
- Communication:Â Strong written and verbal skills for reporting findings to researchers or managers.
- Education: Typically requires a minimum of a Diploma in a technical laboratory program, such as Laboratory Science and Technology, from a recognized university or college
Send your CV and a copy of your certificates via recruitment@tmhsgoup.com before 10th April 2026
3. Sample Reception Personnel (1)
 Location: Kisarawe Plant
Reports to:Â WNE Manager
Key Responsibilities
- Sample Log-in & Data Entry:Â Accurately entering client information, sample locations, dates, and required analyses into LIMS.
- Sample Inspection & Preservation: Checking sample temperatures (usually ), ensuring appropriate container types, verifying hold times, and checking for proper chemical preservation.
- Hazardous Materials Handling
- Receiving and logging samples
- Checking sample integrity and documentation
- Labelling and storing samples properly
- Tracking sample status and reporting issues
- Notifying lab staff of urgent samples
- Handling sample rejections (wrong labelling, etc.)
- Maintaining sample storage areas
- Tracking and managing sample disposal
- Generating reports on sample status
- Safely handling potentially hazardous, corrosive, or toxic samples
Required Skills and Qualifications
- Attention to Detail:Â Essential for preventing errors in sample tracking and labelling.
- Organizational & Time Management:Â Ability to manage high-volume, fast-paced workflows and prioritize urgent samples.
- Technical Knowledge:Â Understanding of environmental sampling requirements, EPA methods, and preservation techniques.
- Safety Awareness:Â Knowledge of standard laboratory practices, safety protocols, and hazardous materials handling.
- Education: At least a Hold certificate in Laboratory Sciences and Technology from a recognized university or colleges and has data Entry and Tracking Skills
- Experience:Â Previous experience in a laboratory environment, particularly with sample receiving or handling, is highly desirable.
- Professionalism:Â Maintaining client confidentiality and professionalism.
- Adaptability: Ability to handle changing priorities, such as system downtimes or high sample volumes.
- Team Player:Â Ability to work collaboratively with laboratory analysts and project managers.
Send your CV and a copy of your certificates via recruitment@tmhsgoup.com before 10th April 2026
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