Assistant Commercial Manager - Interior Design Build

The Assistant Commercial Manager supports the Commercial Manager in managing all commercial aspects of Design & Build construction projects at JLL in Bangkok. Responsibilities include cost control, procurement administration, contract management, payment certification, variation order tracking, and commercial reporting, working closely with Project Managers, the Design Team, Site Supervisors, Finance, and vendors to deliver projects within budget while minimizing commercial risks.

The role requires a Bachelor's degree in Quantity Surveying or a related field such as Construction Management, Engineering, Architecture, or Business Administration (Construction), along with 4–6 years of experience in quantity surveying, cost management, commercial management, Design & Build, or construction consultancy. Fluency in English and Thai is preferred.

Assist in preparing project budgets, cost plans, and monthly commercial reports; monitor expenditures and forecast final project costs

Support tender preparation, RFP issuance, bid evaluation, cost comparisons, and vendor negotiations

Review contracts, purchase orders, and subcontract agreements; maintain contract documentation and monitor obligations

Review variation requests, evaluate commercial impacts, update BOQs, and maintain variation logs

Review payment applications, verify invoices, coordinate payment approvals with Finance, and monitor cash flow projections

Bachelor's degree in Quantity Surveying or related field (Construction Management, Engineering, Architecture, or Business Administration - Construction)

4–6 years of experience in Quantity Surveying, Cost Management, Commercial Management, Design & Build, or Construction Consultancy

Fluency in English and Thai preferred

Experience with procurement administration and contract management

Ability to coordinate with Project Managers, Design Team, Finance, Site Supervisors, consultants, and contractors