**Job Description:** OPERADORA DE SERVICIOS SA DE CV is a leading company in the engineering services sector in Mexico, with a long track record in the market. We value commitment to excellence, innovation, and teamwork. We offer a dynamic and continuously growing work environment where every employee has the opportunity to grow. WE ARE LOOKING FOR: BUDGET ASSISTANT Main Responsibilities: Assist in the preparation of construction budgets (unit prices, direct and indirect costs). * Quantifications (volumetrics) of materials, labor, and machinery. * Quotation of supplies and services with suppliers and subcontractors to obtain updated prices. * Enter data into cost software (such as Neodata, Opus, Presto, or Excel). * Maintain databases of unit prices and performance rates. Record cost changes or deviations during project execution. Keep technical and economic documentation of ongoing projects up to date. Required Profile: · Education: Bachelor's degree in Civil Engineering, Architecture, or related field. · Experience: minimum 1 year in ESTIMATES. · Proficiency in cost and estimation software (Opus) · Skills: organization, numerical analysis, teamwork, and effective communication. We Offer: · Competitive salary. · Statutory benefits. · Development opportunities in a growing company. · Dynamic and professional work environment. 90% OFFICE, 10% FIELD Job Type: Full-time Salary: $13,000.00 - $14,000.00 per month Work Location: On-site employment