Estimator & Purchasing Supervisor

About Us

As a global leader, PROK has a long international history of building conveyor components for a diverse range of companies, including some of the world’s largest mining companies and engineering firms. We understand the heart of our success lies in the passion, dedication and expertise in our people. We foster a culture that empowers individuals to thrive, innovate and learn. As an employer that goes beyond the ordinary, we are proud to be a part of NEPEAN, employing over 2000+ employees across 20+ countries.

Our Opportunity

We are seeking a Estimator & Purchasing Supervisor to join our team in Gresik, Indonesia. This is a hands-on role combining technical expertise, client engagement, and project execution. You’ll work to manage estimation & purchasing requirements relating to all refurbishment and engineering services work scopes, estimation, reporting, procurement and PRONTO system management.

Key Responsibilities

• Prepare quotations, estimates, reports, and cost calculations for refurbishment and engineering projects.
• Manage purchasing activities, including supplier sourcing, quotation requests, and cost control.
• Process purchase orders, work orders, and maintain ERP (PRONTO) transactions.
• Coordinate project schedules, delivery status, and expedite critical items.
• Review customer drawings and technical requirements to support project execution.
• Manage procurement of materials, parts, and workshop supplies.
• Support engineering and technical service projects as required.
• Liaise with internal departments, suppliers, and customers to ensure efficient project delivery.
• Maintain a strong commitment to safety, quality, and continuous improvement.
  
  

About You

To be successful in this role, you will be :

• A degree in Mechanical Engineering or a related discipline.
• 2-5 years' experience in estimation, purchasing, procurement, or project coordination within manufacturing, mining, or heavy industry environments.
• The ability to read and interpret mechanical drawings.
• Strong English communication skills, both written and verbal.
• Familiarity with conveyor components such as pulleys, idlers, frames, or other fixed plant equipment.
• Strong commercial awareness, analytical thinking, andproblem-solving skills.
• Proficiency in Microsoft Office applications and ERPsystems (PRONTO experience will be highly regarded).
• Excellent communication and stakeholder management skills.
• Strong organizational skills with a high level of attention to detail and the ability to manage multiple priorities.
• A commitment to workplace safety, continuous improvement, and operational excellence.