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Lumentum

Supplies photonic components for networks

Senior Product Cost Analyst

Cost & Management AccountingConfirmed live in the last 24 hours
Full-timePathum Thani, ThailandNo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree or above in Finance, Accounting, Business Administration, Economics, or a related field; an Engineering background is also acceptable. An MBA is a plus.
  • At least 5 years of relevant working experience, including product cost accounting or product costing experience in a multinational manufacturing company.
  • At least 3 years of hands-on product costing experience.
  • Advanced Microsoft Excel modeling capability to build, maintain, audit, and explain complex manually managed cost models, rather than only operate an automated costing system.
  • Good knowledge of manufacturing processes and the ability to translate technical and operational inputs into financial cost impact.
  • Proficiency in Oracle ERP; SAP experience is acceptable. Strong Microsoft Office skills are required.
  • Ability to manage multiple priorities and deliverables across approximately 5-10 product lines.
  • English proficiency sufficient to work effectively with global teams from diverse cultural backgrounds.

Responsibilities

  • Independently prepare, maintain, validate, analyze, and control complete Excel-based product cost models for approximately 5-10 product lines, with clear assumptions, formulas, source references, and version history.
  • Obtain required source data and assumptions from business owners, identify and resolve missing, inconsistent, or unsupported inputs, and actively follow up with data owners.
  • Ensure each model is complete, accurate, reviewed, and ready for required business milestones or management reviews.
  • Prepare product cost models and cost roadmaps for NPI gate reviews; analyze changes versus targets, prior model versions, and approved assumptions, and explain key drivers, risks, and opportunities.
  • Partner with R&D, Manufacturing Engineering, GCM, and other teams to identify cost-improvement opportunities and quantify their financial impact.
  • Prepare and maintain cost roadmaps for mass-production products; update assumptions and expected cost changes based on approved BOM, HPU, yield, and other relevant business inputs.
  • Provide a clear view of current cost, expected future cost, timing, and remaining gaps to target.
  • Perform product cost simulations for BOM changes, HPU changes, yield improvement, and other approved scenarios; compare alternatives and quantify cost impacts by product and product line.
  • Analyze variance between actual product cost and the approved cost model or roadmap, identify the main cost drivers, and explain whether variances are caused by assumptions, timing, data, or execution gaps.
  • Track cost-improvement initiatives and cost-saving realization, and validate that reported savings are supported by actual results.
  • Prepare models, forms, and supporting analysis for Free Trade Agreement (FTA) applications.
  • Provide management-ready summaries, recommendations, and ad hoc financial analysis.
  • Manage priorities and deadlines across multiple product lines while maintaining accuracy and documentation quality.
  • Maintain current and traceable assumptions, changes, source references, model versions, and supporting documentation.
  • Communicate cost risks, opportunities, data gaps, and required actions to management and cross-functional stakeholders.

Desired Qualifications

  • Experience with a U.S.-listed company.
  • Tableau experience.
  • An MBA.

About the Company

Lumentum

Supplies photonic components for networks

Lumentum designs and manufactures optical and photonic components for data networks, data centers, sensing, and manufacturing, including diode lasers. Its devices convert electronic signals into light to enable high-speed data transmission and 3D sensing. The company differentiates itself with a broad, high-volume photonics platform that combines silicon photonics, laser diodes for 3D sensing, and integrated optical components for cloud, networking, and manufacturing, supporting large-scale deployment. Its goal is to increase the speed, flexibility, and efficiency of communication networks and sensing systems to meet growing cloud data traffic.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Jose, CA
Founded
2015

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