Location: Boston, MA (Onsite – 415 Summer Street)

Schedule: Monday–Friday, 8 hours/day

Duration: 4-Month Contract (Potential Extension)

Client: Commonwealth of MA – Massachusetts Convention Center Authority (MCCA)

Sigma, Inc. is seeking an experienced Senior Procurement Buyer to support procurement and contracting operations for a high-profile public sector client in Boston, MA.

This role is ideal for professionals with strong ERP systems experience (Business Central preferred) and a deep understanding of the full procurement lifecycle, including sourcing, contract administration, and vendor management.