Jesika Citra Rezeki Panjaitan

Work History

CCIC Jakarta

10.2022 - Current

Hands on chemical testing with deep knowledge f sample preparation, instrumentation, and data interpretation, particularly in mineral and mining-related environments.
Developed in wet chemistry, gravimetric analysis, volumetric analysis, atomic absorption spectroscopy (AAS), ISP-OES, AFS, C/S tester, snd XRF.
Make sure all the implementation of ISO 17025 accreditation, ensuring the laboratory met all necessary standards and improved its overall performance.
Participated in internal and external audits, helping to identify areas for improvement in laboratory operations and data management.
Managed quality assurance programs to ensure laboratory compliance with ISO 17025 standard, resulting in successful reacreditation.
Ensure calibration of all instruments.
Modified and adapted standard methods and procedures to solve analytical problems.
Collaborated with interdisciplinary teams to solve complex problems in product development and scalenus.
Established quality control measures for instrumentation and monitored data quality to operate instrument with control limits.
Mentored junior chemists, providing guidance on industry best practices and career development opportunities.

Chemistry Laboratory of Medan State University

12.2019 - 12.2020

Assisted lecturer in conducting laboratory based research in biochemistry and analytical chemistry.
Performed sample preparation, chemical analysis, and data collection to support ongoing research projects.
Conducted literature reviews and summarized scientific journals to strengthen research proposals and publications.
Assisted in preparing research reports, presentations, and academic papers.
Maintained laboratory equipment and safety procedures to ensure accurate and reliable results.
Collaborated with students and faculty members to support academic project and experiments.
Evaluated student progress through regular assessments, providing detailed feedback for improvement and growth.
Created and designed quizzes, tests and projects to assess student knowledge.

PT. Tirta Investama (DANONE AQUA)

05.2019 - 07.2019

Conducted physicochemical and microbiological testing of water samples to ensure compliance wih regulatory and company specifications.
Monitored and verified critical control points in the production line, such as filtration, ozonation, bottling, and packaging processes.
Reviewed and validated Standard Operating Procedures (SOPs) and ensure adherence to Good Manufacturing Practice (GMP) and Sanitation Standard Operating Procedures (SSOP).
Prepared and maintained quality reports, audits documentation, and compliance records for internal reviews and external regulatory inspections.
Supported internal audits, supplier audits, and certification processes (ISO, Halal, HACCP).
Acted as a liaison between the QA team and other departments such as Development, Customer Support, and Product Management, ensuring effective communication throughout all stages of the project lifecycle.
Supported company in maintaining work environment focused on quality, communication, collaboration, integration, and teamwork.
Streamlined QA processes for increased efficiency and reduced time spent on redundant tasks.
Participated in regular meetings with cross-functional teams to discuss progress updates, communicate concerns or challenges, and ensure alignment of project goals.