HAJAR HASNAN

Perform water quality tests such as:

• Physical parameters: pH, turbidity, temperature, color, and conductivity.
• Chemical parameters: Ammoniacal nitrogen and chloride (via titration), free chlorine, sulfide, boron (via UV-Vis spectrophotometry), dissolved oxygen (DO), biochemical oxygen demand (BOD), Phenol, and oil & grease based on APHA Standard Methods.
• Operate and maintain laboratory instruments used in water testing (e.g., pH meters, DO meters, UV-Vis spectrophotometers), including routine calibration and performance verification as per ISO/IEC 17025:2017 guidelines.
• Register, label, and track water samples from collection to reporting using proper sample management procedures and chain of custody documentation.
• Accurately record and validate analytical data; input results into laboratory logs or LIMS (Laboratory Information Management Systems) following ISO/IEC 17025:2017 documentation and traceability requirements.
• Prepare and issue Certificates of Analysis (COA) for water samples, ensuring correctness, completeness, and compliance with client and regulatory expectations.
• Assist in the procurement and inventory control of laboratory chemicals, reagents, consumables, and equipment used in water testing.
• Collaborate with senior chemists or laboratory supervisors on troubleshooting, continuous improvement, and method development initiatives.

• Conducted water quality tests (turbidity, pH, chlorine) to meet standards.
• Performed jar tests to optimize water treatment.
• Assisted with lab equipment calibration and maintenance.
• Monitored and recorded data from treatment modules.
• Participated in backwashing filtration modules, handling systems.
• Supported cleaning and desludging of tanks and wells.
• Assisted in chemical dosing and dosage adjustments.
• Collected water samples, performed field tests, and prepared lab samples.
• Updated reports, organized documentation, and assisted with audits.
• Participated in safety drills and training (chlorine leak response, SCBA).
• Provided administrative support (data entry, record organization, event preparation).

• Maintained high standards of quality, taste, and presentation in dish preparation, managed daily shop operations (including inventory, staff scheduling, and health and safety compliance), delivered exceptional customer service by efficiently taking orders, serving meals, and addressing customer inquiries, and ensured timely and accurate food deliveries while maintaining quality during transit.

• Managed daily financial transactions, ensuring accurate payment processing and maintaining sales records.
• Delivered excellent customer service by efficiently taking orders, serving meals, and creating a welcoming dining experience for all patrons.