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About the Role
The Cost & Procurement Assistant Manager is responsible for cost management and procurement support across STACK’s data center development projects. This role works under the Director, Cost & Procurement and is part of the Delivery Operations team, supporting multiple data center development projects across Japan. The role functions as a key partner to the Project Director, supporting project delivery from cost and procurement perspectives. From early project stages, the role contributes to project team structuring, master schedule development, cost planning, and procurement strategy, enabling efficient project execution. This is a hands-on role, directly involved in cost analysis, estimate evaluation, and procurement processes.
Responsibilities
- Support the Cost & Procurement Director / Manager and Cost Manager in organising and updating project execution strategy, project team structure, key milestones, master schedules, procurement strategy and tender schedules.
- Prepare and update proposed project team structures, including designers, consultants and contractors.
- Support the preparation and updating of the overall project master schedule, procurement schedule and tender schedule.
- Support the preparation and updating of conceptual cost estimates, cost plans, trade cost breakdowns, budgets, actual costs and forecast costs for data center construction projects.
- Maintain and continuously update the cost database, perform cost analysis by project, trade and vendor, and provide information to support the Cost Manager's cost planning, estimate review, budget control and decision-making.
- Organise and analyse market pricing, construction costs, vendor quotations and cost drivers to support evaluation and decision-making by the Cost Manager.
- For each project, compile and report weekly budget versus actuals, forecast cost, key cost risks, procurement and purchase-order status, planned payments and cash flow.
- Collect, organise and compare quotations submitted by contractors and vendors, and support verification of quantities, pricing, design documentation, quotation content and scope coverage.
- Support the preparation of bid comparisons, negotiation materials and issue registers for commercial discussions with contractors.
- Support the assessment of cost reasonableness, omissions, duplications and potential cost-saving opportunities.
- Support the preparation and administration of RFP/RFQ packages, tender documentation, bid comparisons, bid-evaluation materials and approval papers.
- Organise the information required for contractor and vendor selection, procurement packaging and procurement strategy.
- Prepare and maintain documentation related to contracts, purchase orders, commercial terms, cost conditions and internal approvals.
- Follow up and report on contract execution, purchase orders, delivery, Owner Supply items and separately procured work packages with contractors and vendors.
- Organise and analyse information exchanged with vendors, contractors and consultants to provide visibility of market conditions, pricing trends, supply constraints, lead times and key risks.
- Regularly report market intelligence required for cost planning, procurement strategy and decision-making to the Cost Manager and Cost & Procurement Director / Manager.
- Continuously update and maintain contact lists for vendors, contractors, consultants and key suppliers, including key contacts, applicable trades or products, quotation and tender history, delivery performance and evaluation information.
- Understand lender requirements from a project-finance perspective and, in coordination with the Cost Manager, Finance and project teams, collect, organise and report the required information and documentation.
- Organise and maintain budgets, cost reports, procurement and purchase-order status, contract information, cash flow and supporting documentation required for lender and internal reviews.
- Liaise with the Senior Vice President, APAC and provide timely updates on project costs, procurement, purchase orders, cash flow, market conditions and key risks.
- Coordinate with Delivery, Design, Construction, Finance, Legal and external stakeholders, and prepare meeting materials, minutes, weekly reports, presentations and approval documentation in Japanese and English.
- Maintain accurate cost, procurement, contract and project records in Procore or other relevant systems.
Requirements
- At least 3 years of experience in procurement, cost control, estimating, contract administration, project coordination or a related field.
- Business-level Japanese communication skills.
- Business-level English, including the ability to participate in meetings and prepare emails, meeting minutes, weekly reports, cost and procurement documentation and presentations in English.
- Practical proficiency in Microsoft Excel, PowerPoint and Word, including the ability to organise and analyse cost data in Excel.
- High accuracy, strong document-control discipline and proactive follow-up skills.
- Ability to analyze information and make decisions using logical and numerical reasoning
- Strong ability to identify issues and develop effective solutions
- Ability to anticipate potential challenges and proactively manage risks
- Ability to execute plans effectively and deliver results
- Ability to lead and engage stakeholders to achieve project objectives
- Strong sense of ownership and accountability for successful project completion
- Ability to build trust and maintain strong relationships with stakeholders
- Maintains consistent work performance and professional reliability
- Eager to acquire new knowledge
- You don’t get flustered easily. You can juggle multiple high-level priorities with competing timelines while welcoming a new, urgent challenge with ease.
- Are culturally sensitive and enjoy working with a diverse group of individuals from multiple regions.
- You pay attention to the details – meticulously, and every time. Nothing falls through the cracks on your watch.
- You’re collaborative. You enjoy working with others to solve problems – and people enjoy working with you. You can shift from being a leader to a contributor when needed.
- You’re smart. You think five steps ahead and see issues from multiple angles. You’re not just a problem solver – you’re a problem preventer.
Skills
- Cost Management
- Procurement
- Estimating
- Contract Administration
- Project Coordination
- Microsoft Excel
- Microsoft PowerPoint
- Microsoft Word
- Cost Analysis
- Estimate Review
- RFP/RFQ Management
- Tender Management
- Cost Databases
- Market Analysis
- Supplier Management
- Project Finance
- Procore or comparable system
Location
- Osaka, Japan
- Tokyo, Japan
Work Type
- Full-time
- Hybrid
Experience Level
- Assistant Manager
- 3+ years
Benefits
- Competitive compensation package
- Strong benefits
About the Company
- STACK Infrastructure builds, owns, and operates hyperscale and colocation data centers that power the world’s most ambitious technology companies.
- With a rapidly expanding footprint across APAC, STACK combines deep development expertise, flexible capital, and operational discipline to deliver critical digital infrastructure at scale.
- Our clients include the largest hyperscale cloud platforms.
- We are building a regional platform defined by speed of delivery, power reliability, and long-term partnership — and we are assembling the team to lead that effort.
Equal Opportunity
- STACK is an Equal Opportunity Employer. ALL qualified applications will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identify and expression, age, national origin, mental or physical disability, genetic information, veteran status, or any other status protected by law.