Warehouse Assistant Manager

This position will be responsible for leading and optimizing warehouse operations for a complex, high-volume manufacturing and distribution facility that supports global customers. This role ensures safe, efficient, and compliant handling of hazardous materials, a large SKU portfolio, and export shipments across multiple geographies including managing inbound, storage, inventory control, and outbound operations, ensuring SQDIP performance through Daily Management and lean problem solving (Kaizen/VSM). The role builds a high‑performing team, partners closely with Supply Chain, Planning, Production, Quality, Import/Export, Customer Service, and 3PLs, and drives compliance with trade/customs, corporate/company rules, and site SOPs.

ESSENTIAL DUTIES AND RESPONSIBILITIES:

Safety

• Develop and sustain a safety‑first culture; 5S and EHS practices with strong focus on chemical handling, spill prevention, segregation of hazardous materials, and PPE compliance.
• Ensure adherence to Company Rules, Regulations, and Procedures.

Compliance & Quality

• Oversee trade/customs compliance touchpoints (documentation accuracy, DG, HS codes) in partnership with the Import‑Export Coordinator and logistics providers.
• Ensure compliance with Thai Free Zone regulations, IATA/IMDG/DOT hazardous goods standards, and global EHS requirements.
• Ensure compliance with chemical handling/staging per ADC SOPs, partner with Quality on nonconforming product control and proper documentation.
• Maintain documentation and readiness for internal/external audits (customs, regulatory, corporate).

Operations & Inventory Management

• Lead receiving, put-away, binning, replenishment, picking/packing, and shipping processes; achieve target dock‑to‑stock, order cycle time, and OTD metrics via Daily Management.
• Own inventory accuracy (cycle counts, root cause & corrective actions) and warehouse master data discipline in ERP/WMS; champion standard work and visual controls.
• Maintain flow integration with upstream manufacturing and downstream distribution by VSM, SW, and SOP references.

People Leadership & Capability Building

• Lead, coach, and develop a warehouse team (frontline leads & operators); set clear goals, conduct GEMBA‑based coaching, and build problem‑solving capability.
• Foster a culture of continuous improvement, accountability, and teamwork.
• Plan and align workforce labor/shift coverage for volume peaks; drive cross‑training, skills matrices, and safe equipment & machinery operation certifications.

Cross‑functional & External Collaboration

• Partner with Planning/Order Management, Production, Quality, Finance, Customer Service, and Import‑Export to balance service, cost, and inventory goals.
• Ensure global distribution performance to meet diverse customer requirements.
• Balance complexity of small-lot shipments, large export containers, and special handling of hazardous products.
• Support global ERP/WMS initiatives (Oracle EBS/Fusion) and local continuous improvements to data integrity, scanning, and transaction accuracy.

Continuous Improvement

• Identify areas for improvement in warehousing, recommending and implementing changes to streamline operations and improving service levels.
• Lead Kaizen to remove waste across inbound‑to‑outbound value streams (VSM), implement standard work, and stabilize processes via Daily Management visuals and Kamishibai.
• Monitor and report on key performance indicators (KPIs) with SQDIP, order fulfillment rates, and customer satisfaction.
• Use data analytics to drive decision-making and propose solutions to improve overall warehousing efficiency & effectiveness.
• Contribute to cost optimization through packaging, freight, and warehouse productivity improvements.

QUALIFICATIONS & TECHNICAL SPECIFICATIONS:

• Bachelor's degree in management of supply chain, logistics, warehousing, or related field.
• 8+ years' experience in warehouse, logistics, or supply chain management, preferably in manufacturing with hazardous chemicals and complex SKUs.
• Strong knowledge of ERP/WMS systems (Oracle is advantageous).
• Advance Excel
• Proven experience in hazardous goods handling, IMDG/IATA/DOT compliance, and export logistics.
• Strong leadership skills with ability to coach and manage diverse teams.
• Continuous improvement mindset with Lean/Kaizen experience.
• Good business communication skills in English and Thai.

WORKING ENVIRONMENT & CONDITIONS:

• The duties and responsibilities are generally performed in on-site office environment and warehouse area.
• Daily activities may involve hazardous chemicals in proximity.
• The position generally involves frequent sitting, occasional standing, occasional walking.
• The environmental conditions generally include ambient inside temperature with sufficient lighting levels.
• The occasional use of protective clothing, ESD and PPE is required in accordance with workplace conditions.