Position Overview

We ​are ​looking ​for a ​Cost Accounting Manager to ​join ​our Finance ​Team. This role ​is responsible ​for ​establishing and ​operating ​cost ​accounting systems aligned ​with ​product manufacturing and ​mass ​production ​schedules, managing raw ​materials, WIP ​(work-in-process), ​and finished ​goods inventory, ​and ​overseeing inventory audits. ​By working ​closely with Purchasing, Production, SCM, and FP&A teams, you will play a critical role in ensuring the accuracy of COGS, improving profit visibility, and enhancing inventory accuracy and turnover efficiency.

Responsibilities & Opportunities

Cost System Development & Operation

• Establish and maintain standard cost structures; manage BOM and routing consistency.
• Design allocation bases for manufacturing overhead, analyze variances between standard and actual costs, and report improvement plans to management.

Monthly/Quarterly Closing & Financial Reporting

• Prepare manufacturing cost statements and evaluate WIP, finished goods, and semi-finished goods.
• Conduct loss, scrap, and NRV tests; set inventory reserves; and calculate COGS.

Inventory Management & Audits

• Design and manage systems to efficiently operate the full cycle from raw material purchase to product sales.
• Conduct full inventory counts at least annually, including domestic and overseas 3PL/EMS/CM locations.

SCM Operations Support & Partnership Management

• Collaborate with procurement, production, quality, and logistics teams to drive efficient SCM operations and cost reduction.
• Analyze the impact of supply chain-related costs (tariffs, VAT, freight) and design allocation methodologies.
• Develop inventory operation plans (safety stock, MOQ, lead time) with financial impact considerations, and report to management.

Internal Controls & External Audit for Inventory/Cost

• Support the design and operation of internal controls (SOX/Internal Accounting Control System).
• Standardize processes and documentation to support external audit

requests.

Required Qualifications

• 5+ years of experience in cost and inventory accounting in manufacturing/mass production at large enterprises or global companies (preferred in electronics, semiconductors, equipment, or machinery).
• Hands-on experience in standard cost design, inventory audits, international logistics cost allocation, and multi-country supply chain operations (collaboration with overseas EMS/CM/3PL).
• Strong background in month-end inventory closing, standard vs. actual cost management, and full-cycle purchasing-inventory-sales operations.
• Proficiency in at least one ERP system (SAP, Oracle, Duzon, QuickBooks); advanced Excel and data analysis skills preferred.

Preferred Qualifications

• Cost accounting experience in semiconductor, electronics, or server/network hardware component/module manufacturing.
• CMA/CPA certification or understanding of US GAAP.
• Experience in designing and operating internal controls (SOX/Internal Accounting Control System).
• Proficiency in business English for emails, meetings, and reporting materials.
• Knowledge of tariffs, Incoterms, freight cost allocation, and transfer pricing.

About us

MangoBoost, Inc.

• MangoBoost is a start-up company that develops groundbreaking new data processing units (DPUs). MangoBoost’s novel DPUs can be customized and flexibly integrated in server systems to address myriad of system overheads, and make other devices (such as SSDs, GPUs, NICs, etc.) smarter. As a result, MangoBoost DPU offers a dramatic boost in system efficiency, performance, scalability, and cost effectiveness. MangoBoost leverages ~10 years of prior world-leading research done in academia, which has produced extensive full-system patent-pending prototypes published at premier conferences in computer architecture and systems areas (for example ISCA and OSDI). MangoBoost has received $10M seed fund in 2022, $55M series A fund in 2023 and is actively growing in the US and Korea.
• MangoBoost is comprised of the world's top computer system developers. The founder is currently one of the world's leading computer system architects, and other members are also experts with outstanding careers in various aspects of computer system development. Most team members have conducted research and worked at top-tier universities and companies worldwide. Since 2014, our team has been developing the world's top-level DPU, and we are the only start-up capable of designing a DPU that can compete immediately with giants like Amazon and NVIDIA.

Notice Regarding Return of Hiring Documents

• This notice is in accordance with Article 11, Section 6 of the Fair Hiring Procedure Act, which allows job applicants, excluding the final successful candidate, to request the return of any recruitment documents they have submitted.
• Job applicants who were not selected as the final candidates in the recruitment process are entitled to request the return of the recruitment documents they submitted within 180 days of the date the employment decision is confirmed. However, this does not apply to documents submitted via the website or email, or documents voluntarily submitted by the applicant without the company’s request. If the recruitment documents are lost due to natural disasters or other reasons for which the company is not responsible, it will be considered as having been returned.
• Applicants wishing to request the return of their recruitment documents should fill out the Request for Return of Hiring Documents [Form 3 of the Enforcement Rules of the Fair Hiring Procedure Act] and submit it by email ([email protected]). The documents will be sent by registered mail to the designated address within 14 days from the confirmation of submission. Please note that the cost of registered mail will be borne by the recipient.
• The company will keep the recruitment documents for 180 days following the confirmation of the employment decision. If no request for the return of documents is made within that period, the company will dispose of all recruitment documents without delay in accordance with the Personal Information Protection Act.