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Mr Tharindu Chathuranga Kallapatha Withanage BSc (Hons) QS, MCIOB, ACIArb, MQSi, MAIQS, CQS

Commercial Manager | Cost & Contract Management | MEP • Fit-Out • Infrastructure | FIDIC | Claims & Risk | MCIOB, MAIQS, CQS, MQSi, ACIArb
Job title: Commercial & Contract Manager
Country: Sri Lanka
Membership type: Associate membership
Primary branch: Sri Lanka
Disciplines: Arbitration

Contact details

Personal bio

Commercial Manager with 18+ years of experience delivering cost, contract, and commercial management across UAE, Oman, and Sri Lanka within MEP, fit-out, Joinery & infrastructure utilities, and high-end construction sectors.
I specialize in managing the full commercial lifecycle—from feasibility and cost planning to procurement, contract administration, claims, and final account closure—ensuring projects are delivered within budget while protecting contractual entitlements.

Key strengths include:

• Cost planning, budgeting & financial control
• Contract administration (FIDIC & bespoke contracts)
• Variations, claims & dispute management
• Procurement strategy & subcontract management
• Commercial risk management & value engineering

I have successfully contributed to major developments including hotels, high-rise towers, luxury villas, hospitals, and infrastructure utilities, consistently driving cost optimization and margin improvement.
Professionally accredited as MCIOB, MAIQS, MQSi, ACIArb, and CQS, I bring a structured, detail-driven approach combined with strong stakeholder management to deliver commercially successful outcomes.