Quality Improvement Engineer (Rayong Plant) - POSCO-Thainox Public Company Limited
POSCO-Thainox Public Company Limited · Rayong
- Location
- Rayong
- Salary
- Negotiable
- Job Type
- Full Time
- Work Type
- Onsite
- Education
- Bachelor's Degree
- Posted
- 17/05/2026
Responsibilities
1. Overseeing the hot roll annealing and pickling process [HAP] ,Batch annealing process [BAF]
2. Bright Annealing Process (BAL) and Skin Pass Mill (SPM) in term of production process engineering and metallurgical concerns.
3. Sustains the production to operate in smoothly by supervising on the metallurgical matters aiming for production right and good quality products.
4. Also coordinates with all concern parties for the quality improvement and product development project.
5. (Issue process test and design process parameters for the quality improvement, product development and cost saving)
Qualifications
1. Bachelor’s Degree in Metallurgical Engineering, Industrial engineer, Materials Engineering, Mechanical Engineering or related fields
2. 0-3 years’ experience in production or steel industry is preferable
3. Be Able to work on tools with production team
4. Be Able to work in Rayong province
5. Good command in English Language
6. Strong in negotiation with excellent communication, interpersonal, problem solving skills and service mind
Working location: POSCO-Thainox Public Co.,Ltd.
Rayong Plant: 324 Moo 8, Highway No. 3191Rd. Mabkha, Nikhompattana, Rayong
Working hours: Monday – Friday (08.00 – 17.00)
Benefits
- Dental insurance
- Life insurance
- Overtime
- 5-day work week
- Health insurance
- Performance/results-based bonus
About POSCO-Thainox Public Company Limited
POSCO-Thainox Public Company Limited
POSCO - Thainox,the first and largest cold-rolled stainless steel producer in Thailand and ASEAN, is a BOI-promoted company and listed on Stock Exchange of Thailand (SET). We place strong emphasis on the development of our employees in order to fulfill our tag line“We shape the future.”We are committed to our vision“To provide better quality of life with innovativePOSCO- Thainox’s stainless products”.
Our head office is located in Bangkok and our plant in Rayong. In line with the company’s philosophy, we offer excellent career opportunities for Thai nationals who possess strong drive and self-motivation to succeed, we are seeking candidate for the following positions:
324 Moo 8, Highway No.3191 Road, Tambol Mabkha, Amphur Nikompattana, Rayong 21180
Human Resources Department
038-636-125, 0-2250-7622-32
Quality Improvement Engineer (Rayong Plant)POSCO-Thainox Public Company Limited




Dream Company
Quality Improvement Engineer (Rayong Plant)
What you will do
Responsibilities
1. Overseeing the hot roll annealing and pickling process [HAP] ,Batch annealing process [BAF]
2. Bright Annealing Process (BAL) and Skin Pass Mill (SPM) in term of production process engineering and metallurgical concerns.
3. Sustains the production to operate in smoothly by supervising on the metallurgical matters aiming for production right and good quality products.
4. Also coordinates with all concern parties for the quality improvement and product development project.
5. (Issue process test and design process parameters for the quality improvement, product development and cost saving)
Qualifications
1. Bachelor’s Degree in Metallurgical Engineering, Industrial engineer, Materials Engineering, Mechanical Engineering or related fields
2. 0-3 years’ experience in production or steel industry is preferable
3. Be Able to work on tools with production team
4. Be Able to work in Rayong province
5. Good command in English Language
6. Strong in negotiation with excellent communication, interpersonal, problem solving skills and service mind
Working location: POSCO-Thainox Public Co.,Ltd.
Rayong Plant: 324 Moo 8, Highway No. 3191Rd. Mabkha, Nikhompattana, Rayong
Working hours: Monday – Friday (08.00 – 17.00)
Why you'll love working here
"Positive work culture and supportive colleagues."
Why Join Us?View HR SAY >
บริษัท โพสโค-ไทยน๊อคซ์ จำกัด (มหาชน) คือผู้ผลิตสเตนเลสรีดเย็นแห่งเดียวในประเทศไทย ก่อตั้งขึ้นจากความร่วมมือของกลุ่มอุตสาหกรรมเหล็กชั้นนำจากหลายประเทศ และเติบโตอย่างมั่นคงบนพื้นที่ฐานการผลิตขนาดใหญ่ในจังหวัดระยอง
ตั้งแต่ปี 2554 บริษัทได้เป็นส่วนหนึ่งของ POSCO ผู้นำอุตสาหกรรมเหล็กระดับโลกจากเกาหลีใต้ เสริมศักยภาพด้านเทคโนโลยี มาตรฐานการผลิต และเครือข่ายระดับสากล ผลักดันองค์กรสู่การเป็นผู้นำด้านคุณภาพในเอเชียตะวันออกเฉียงใต้
การร่วมงานกับเรา คือโอกาสในการเติบโตไปพร้อมองค์กรที่มั่นคง ได้ทำงานในมาตรฐานระดับโลก และเป็นส่วนหนึ่งของการขับเคลื่อนอุตสาหกรรมไทยสู่เวทีสากล

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Welfare
- Dental insurance
- Life insurance
- Overtime
- 5-day work week
- Health insurance
- Performance/results-based bonus
About Company
POSCO-Thainox Public Company Limited
POSCO - Thainox,the first and largest cold-rolled stainless steel producer in Thailand and ASEAN, is a BOI-promoted company and listed on Stock Exchange of Thailand (SET). We place strong emphasis on the development of our employees in order to fulfill our tag line“We shape the future.”We are committed to our vision“To provide better quality of life with innovativePOSCO- Thainox’s stainless products”.
Our head office is located in Bangkok and our plant in Rayong. In line with the company’s philosophy, we offer excellent career opportunities for Thai nationals who possess strong drive and self-motivation to succeed, we are seeking candidate for the following positions:
Location
324 Moo 8, Highway No.3191 Road, Tambol Mabkha, Amphur Nikompattana, Rayong 21180
Contact person
Human Resources Department
Telephone
038-636-125, 0-2250-7622-32
Website
www.poscothainox.com