Buyer: San Juan, Puerto Rico


ACI-Herzog is seeking a Buyer for our Tren Urbano system in San Juan, Puerto Rico. Tren Urbano is a rapid transit system, comprised of 10.7-miles and 16 stations, serving the municipalities of San Juan, Guaynabo, and Bayamon in Puerto Rico. Tren Urbano is central part of the public transportation network, serving multiple universities and technical colleges, major medical centers, the city’s financial district, entertainment venues and many residential neighborhoods.


Analyze and negotiate with vendors for the procurement of specific technical equipment, parts and material. Compile information and records to prepare purchase orders for procurement of services and materials.

ESSENTIAL DUTIES AND RESPONSIBILITIES include, but are not limited to the following:

  • Analyze and study all approved department/internal customer requisitions and prioritize.
  • Contact Department personnel for support and clarification on those requisitions that require diagrams, scope of work, or technical specifications before requesting any quotation.
  • Create part numbers for the non-defined parts in requisitions as per user’s request.
  • Request for Quotation and negotiate from local and international vendors in order to compare price, availability and lead time.
  • Contact vendors and make an appointment between vendors and requesting parties for site inspections in order for vendors to provide quotes/proposals.
  • Qualify vendors, suggest alternate vendors and negotiate with actuals to achieve cost reductions.
  • Create new vendors in the system and procure all required documentation before allowing purchases from that vendor.
  • Submit SDS for approval as needed.
  • Negotiate with different freight carriers for inbound and outbound parts shipments and external rebuilds worldwide.
  • Validate RFQ process and submit to the internal approval process prior to placing the purchase order as per department specifications and requirements.
  • Send Purchase order to vendor and upload into the system.
  • Provide Finance Department with supporting documentation for payment purposes and receipts for American Express statement and payment.
  • Audit all documents to ensure they meet all certifications required by the government and all customers.
  • Work with Obsolescence Parts.
  • Give support to the tracking of purchase orders to ensure on time deliveries.
  • Resolve any price, quantity or invoice discrepancy with Vendors, Warehouse and Accounts Payable.
  • Meet with new vendors in order to increase our vendor database preferably and recently, add more DBE vendors in order to comply with federal regulation.
  • Coordinate deliveries and pickups of rental equipment as needed.
  • Prepare saving reports in a quarterly basis.
  • Use computers and computer systems (including hardware and software) to enter data, or process information.
  • Develop constructive and cooperative working relationships with others and maintain them over time.
  • Performs other duties and special projects as assigned.


This position has no supervisory responsibilities.


To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the specific knowledge, skills, and/or abilities required.

Education and/or Experience

Associate’s Degree (A.A.) or equivalent from a two year accredited college or technical school and at least two (2) years of related work experience. Extended work experience may be substituted for educational credentials if appropriate.

Language Skills

Ability to speak, read and write both Spanish and English in a work setting. Ability to read and interpret documents such as safety rules, operating and maintenance instructions and procedure manuals. Ability to write routine reports and correspondence. Ability to speak effectively to employees of the organization.

Mathematical Skills

Ability to calculate figures and amounts such as discounts, interest, commissions, proportions, percentages, area, circumference, and volume. Ability to apply concepts of basic algebra. Ability to deal with units of measure and its conversions.

Other Skills

Must be highly detail oriented and organized. Must be able to understand organization priorities and meet deadlines. Excellent communication and interpersonal skills with a customer service focus. Ability to work cooperatively and collaboratively with all levels of employees, management, and external agencies to maximize performance, creativity, problem, solving, and results.

Reasoning Ability

Ability to apply common sense understanding to carry out instructions furnished in written, oral, or diagram form. Ability to deal with problems involving several concrete variables in standardized situations.

Certificates, Licenses, Registrations

Possession of a valid driver’s license in the appropriate class and any other certificates, licenses and registrations as required by law to perform the specified functions.

Physical Demands

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. While performing the duties of this job, the employee is regularly required to stand, walk, sit, and talk or hear. The employee must frequently lift and/or move up to 10 pounds. Specific vision abilities required by this job include close vision and ability to adjust focus.

Work Environment

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. The noise level in the work environment is usually moderate.

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Click here to review our Disclaimer. The statements on the Disclaimer constitute the conditions under which you would be employed for Alternate Concepts, Inc. (ACI) should you be accepted for employment.

Alternate Concepts Inc is currently searching for qualified candidates to fill the Rail Transit Facilities Engineering Intern position. All interested parties should submit a cover letter and resume to