Senior Engineer - Test & Finish (OSAT)

STMicroelectronics; Calamba; On-site; PHP 550,000 - 850,000; Full time

Job summary

STMicroelectronics Philippines is seeking a Test and Finishing specialist to act as the primary link between ST divisions and OSAT subcontractors. You will drive Final Test yield improvements, support on-site audits, and guide subcontractor KPI initiatives.

The role requires 5+ years in test/finishing with IC testing experience and proficiency in STDF and test data logs. You will train subcontractors on ST’s requirements, collaborate on product development and ramp-ups, and support production

Qualifications

• BS in any Engineering field except Civil Eng.
• Minimum 5 years in Test and Finishing; assembly background is a plus.
• Experience with various testers/handlers used for IC testing; knowledge of STDF and test data logs.

Responsibilities

• Act as primary interface between ST Divisions and OSAT subcontractors to ensure timely responses to technical issues and inquiries from all stakeholders.
• Provide technical support for Philippine OSATs and drive Final Test yield improvements to meet KPI targets.
• Support customer on-site audits and drive technical resolution in OSAT.
• Drive subcontractor continuous improvement on technical KPIs and initiatives (PCN, QUAL pass, evaluations, deployment).
• Train subcontractor on ST’s technical requirements and tools.
• Interface OSAT and Division on product/package development/NPI; support technical reviews and production ramp-up.

Skills

Test & Finishing experience

Assembly process background

IC testing experience with testers/han

English business proficiency

Education

BS in Engineering (except Civil)

Tools

STDF

Test data log

MS Excel

MS Word

MS PowerPoint

Job description

OUR STORY

At STMicroelectronics, we believe in the power of technology to drive innovation and make a positive impact on people, businesses, and society. As a global semiconductor company, our advanced technologies and chips form the hidden foundation of the world we live in today.

When you join ST, you will be part of a global business with more than 122 nationalities, present in 40 countries, and comprising over 49,000 diverse and dedicated creators and makers of technology around the world.

Developing technologies takes more than talent: it takes amazing people who understand collaboration and respect. People with passion and the desire to disrupt the status quo, drive innovation, and unlock their own potential.

Embark on a journey with us, where you can innovate for a future that we want to make smarter and greener, in a responsible and sustainable way. Our technology starts with you.

YOUR ROLE

• Primary interface between ST Divisions and subcontractor (OSAT) to ensure timely respond on technical issues & enquiry from all GOBM stakeholders (external customer, Division / Groups, ST BEMT plants, internal support organization and OSAT).
• Technical support for Philippine OSATs and responsible to drive Final Test yield improvement of OSAT to meet GOBM KPI target.
• Support customer on-site audit and drive technical resolution in OSAT.
• Accountable to drive subcontractor for continuous improvement on technical KPI and initiatives such as PCN, QUAL pass, successful evaluations, and deployment.
• Trains subcontractor on ST’s technical requirement & tools.
• Interface between OSAT and Division on product / package development / NPI, supports technical review and production ramp up.

YOUR SKILLS & EXPERIENCES

• BS in any Engineering course except Civil Eng'g
• At least 5 years of experience in Test and Finishing process, Assembly process background is an advantage
• With experience on various testers and handlers used for IC testing
• Knowledge on STDF and Test data log
• Extensive knowledge of MS Excel, Word, Powerpoint
• English business proficiency

ST is proud to be one of the 17 companies certified as a 2026 Global Top Employer and the first and only semiconductor company to achieve this distinction. ST was recognized in this ranking thanks to its continuous improvement approach and stands out particularly in the areas of ethics & integrity, purpose & values, organization & change, business strategy, and performance.

At ST, we endeavor to foster a diverse and inclusive workplace, and we do not tolerate discrimination. We aim to recruit and retain a diverse workforce that reflects the societies around us. We strive for equity in career development, career opportunities, and equal remuneration. We encourage candidates who may not meet every single requirement to apply, as we appreciate diverse perspectives and provide opportunities for growth and learning. Diversity, equity, and inclusion (DEI) is woven into our company culture.

To discover more, visit st.com/careers.