Job Title: Lab / Assaying Technician (Precious Metals)

About the Role

We are seeking a dedicated and detail-oriented Lab / Assaying Technician to join an accredited Gold & Silver Assaying and Hallmarking Centre. In this role, you will be responsible for testing the purity of precious metals using standardized chemical and non-destructive testing procedures (such as Fire Assaying / Cupellation and XRF analysis) in compliance with Bureau of Indian Standards (BIS) norms. Openings for Freshers & Experienced Candidates. Comprehensive hands-on training will be provided.

Key Details

- Job Type: Full-time, Permanent
- Industry: Hallmarking & Assaying Centre (BIS Certified)
- Locations: Thanjavur | Trichy | Karaikal | Mayiladuthurai
- Salary: ₹10,000 – ₹15,000+ per month (Negotiable based on qualification, performance, and experience)
- Advantages: Food & Accommodation provided for eligible outstation candidates (as per company policy)

Key Responsibilities

- Sample Preparation: Receive gold/silver samples, accurately weigh them using micro-analytical balances, and prepare them for testing.
- Assaying & Testing: Perform fire assay (cupellation) and chemical wet assaying methods following standard operating procedures (SOPs).
- Spectrometry Analysis: Assist in operating X-ray Fluorescence (XRF) testing machines for preliminary and non-destructive purity checks.
- Acid Handling & Safety: Safely prepare, handle, and store assay chemicals (such as Nitric Acid) and adhere strictly to laboratory safety, disposal, and exhaust ventilation protocols.
- Furnace Operation:



Safely handle high-temperature muffle/cupellation furnaces and assaying lab tools.
- Documentation & Reporting: Maintain meticulous records of testing logs, heat-loss calculations, weight variations, and purity percentages.
- Quality Compliance: Ensure all procedures strictly align with BIS hallmarking rules and standards.
- Equipment Maintenance: Maintain cleanliness of lab instruments, coordinate routine calibration of analytical balances, and report equipment defects promptly.

Shift Timings

Candidates must be willing to work on rotational shifts:

- Morning Shift: 8:30 AM – 8:30 PM (includes 1-hour lunch break)
- Night Shift: 8:30 PM – 8:30 AM
- General Shift: 9:30 AM – 9:00 PM (includes 1-hour lunch break)

Qualifications & Criteria

- Educational Qualification: B.Sc in Chemistry (Preferred) or related chemical sciences.
- Experience: Fresh graduates are welcome to apply; candidates with 6+ months to 1 year of experience in a gold testing lab, jewelry manufacturing unit, or chemical quality lab will have an added advantage.
- Gender / Eligibility: Open to all eligible candidates comfortable working in rotational shifts (including night shifts).

Required Skills & Competencies

- Basic understanding of inorganic chemistry, titration, and standard laboratory equipment.
- High precision and dexterity when handling micro-weights and sensitive instruments.
- Strong attention to detail and record-keeping discipline.
- Sound knowledge of laboratory health and safety standards.
- Basic computer proficiency (MS Excel / Word) for data entry.

Contact Number - +91 97881 10111

📌 Lab / Assaying Technician (Tamil Nadu)
🏢 Sisco Jobs
📍 Tamil Nadu