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Lumentum Holdings · Thailand - Pathumthani

# Buyer Manager

Thailand - Pathumthani Full-time Manager or lead Supply Chain & Logistics 

Listed on Lumentum Holdings’s official careers site. Posted October 14, 2026. Check that it is still open and apply there.
[Apply on Lumentum Holdings’s careers site →](https://lumentum.wd5.myworkdayjobs.com/LITE/job/Thailand---Pathumthani-Navanakorn/Production-Planner_20261339)

[OpenNash Jobs](https://jobs.opennash.com/) / [Lumentum Holdings](https://jobs.opennash.com/companies/lumentum-holdings/) / Buyer Manager

## Job description

It's fun to work in a company where people truly BELIEVE in what they're doing! We're committed to bringing passion and customer focus to the business. If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

### Responsibilities

Develop and maintain detailed production schedules for mass production builds, engineering builds, pilot runs, and production ramp activities. Translate engineering and program requirements into feasible build plans aligned with capacity, materials, and operational priorities. Review MRP requirements, validate demand signals, and ensure timely availability of materials and ramp builds. Coordinate with Buyers, Global Supply Chain, and suppliers to secure material commitments, expedite shortages, and resolve supply gaps.

Lead build readiness reviews (BRR) and ensure all prerequisites—materials, tooling, test capacity, documentation, ECO releases—are in place before build execution. Track daily build progress, monitor WIP status, and address risks or delays with timely communication to stakeholders. Support production ramp readiness by validating equipment capacity, manpower, test capability, and supporting resources. Identify constraints across supply, capacity, or process flow and coordinate recovery plans to ensure on-time delivery.

Maintain accurate planning parameters (lead time, safety stock, lot size, planning attributes) to support effective MRP and planning accuracy. Generate build status reports, schedule adherence metrics, and material readiness summaries for local and global stakeholders. Drive continuous improvement in planning processes, communication, data discipline, and operational coordination. Ensure compliance with Lumentum’s planning standards, governance, build control processes, and documentation requirements.

Perform additional duties or responsibilities as assigned by the Manager.

### Qualifications

Bachelor’s degree in Supply Chain, Industrial Engineering, Manufacturing, Business Administration, or a related field. At least 5 years of experience in production planning, NPI planning, material planning, or supply chain roles within high-tech manufacturing. Strong working knowledge of MRP/ERP systems (Oracle preferred), BOM structures, and ECO/change management processes. Experience supporting NPI or Mass Production builds, engineering builds, and ramp-to-volume transitions in a global manufacturing environment.

Strong analytical skills with the ability to interpret data, identify risks early, and propose effective mitigation actions. Excellent communication and coordination skills, with the ability to work with cross-functional and cross-site teams. High attention to detail, strong organizational skills, and the ability to manage multiple priorities in a fast-paced environment. Proficiency in Microsoft Excel for analysis and reporting; experience with planning dashboards or analytics tools is a plus.

Ability to work independently while maintaining strong collaboration with global partners. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.

Please contact us to request accommodation.

## At a glance
- Posted by the employer: Oct 14, 2026
- First seen by OpenNash: Oct 18, 2026
- Last checked: Oct 18, 2026
- Listed for: 4 days
- Location: Thailand - Pathumthani
- Employment type: Full-time[Apply on Lumentum Holdings’s careers site →](https://lumentum.wd5.myworkdayjobs.com/LITE/job/Thailand---Pathumthani-Navanakorn/Production-Planner_20261339)

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