Summary
Overview
Work History
Education
Skills
References
Activities & Involvement
Timeline
Generic
HAJAR HASNAN

HAJAR HASNAN

Chemistry Graduate
Miri

Summary

Chemistry graduate from Universiti Malaysia Sarawak, having fulfilled all degree requirements by January 2025, with official graduation scheduled for November. Experienced with chemical analysis and laboratory techniques. Utilizes analytical instruments to support research and development activities. Knowledge of safety protocols and laboratory best practices.

Overview

6
6
years of professional experience
2
2
Languages

Work History

Assistant Chemist (Laboratory Department)

Prisma Laboratory (M) Sdn. Bhd.
04.2025 - Current

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.

Internship Trainee (Production Department)

LAKU Management Sdn Bhd
07.2024 - 01.2025
  • 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).

Part Timer (Family Business)

Restoran Sri Saribas
04.2021 - 09.2022
  • 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.

Part Timer (Family Business)

Restoran Sri Saribas
12.2019 - 07.2020
  • 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.

Education

Bachelor of Chemistry Science with Honours - Chemistry

University Malaysia Sarawak, UNIMAS
Samarahan, Sarawak
11-2025

Foundation in Life Science - Foundation in Life Science

University Malaysia Sarawak, UNIMAS
Samarahan, Sarawak
01.2021

Skills

  • Software: Ms Office, Chemdraw, Analytical Skills, Statistical Analysis Software, MicroLab FTIR, Uv-Vis Spectroscopy
  • Analytical skill: Colorimetric, titration, gravimetric
  • Environment chemistry: water quality testing, regulatory compliance, sample preparation, quality control procedures

References

Dorothy Mayang Patrick Malin, 

Supervisor, 

+6082-582 935 | dorothympm@lakumanagement.com.my, 

LAKU Management Sdn Bhd


Dr Nor Hisam Binti Zamakshshari

Lecturer,

University Malaysia Sarawak

+6082-582 935 | Znhisam@unimas.my


Dr Mohd Alhafiizh Bin Zailani

Lecturer,

University Malaysia Sarawak

+6082-582 286 | Zmalhafiizh@unimas.my

Activities & Involvement

  • Final Year Project: Physicochemical Properties of Starch Isolated from Banana Pseudostem of Musa sapientum “Saba” and Musa paradisiaca “Awak” via Wet Milling Extraction.
  • Service Learning Malaysia-University for Society (SULAM): A Project Based Learning conducted at Masjid Taman Desa Ilmu, Kota Samarahan as the project leader of the project.
  • Mentor, Leadership Programme in Teach For Malaysia (2023-2024)
  • Team Manager, Netball Team (KESUMAS), Faculty of Resource Science and Technology, UNIMAS (2023)
  • 1st Runner-Up, Toyota Eco Youth (UMW Toyota Motor and Ministry of Education) SMK Lopeng Tengah
  • Malaysian United Nations Assembly (MUNA), Malaysian-American Commision on Educational Exchange Program

Timeline

Assistant Chemist (Laboratory Department)

Prisma Laboratory (M) Sdn. Bhd.
04.2025 - Current

Internship Trainee (Production Department)

LAKU Management Sdn Bhd
07.2024 - 01.2025

Part Timer (Family Business)

Restoran Sri Saribas
04.2021 - 09.2022

Part Timer (Family Business)

Restoran Sri Saribas
12.2019 - 07.2020

Bachelor of Chemistry Science with Honours - Chemistry

University Malaysia Sarawak, UNIMAS

Foundation in Life Science - Foundation in Life Science

University Malaysia Sarawak, UNIMAS
HAJAR HASNANChemistry Graduate