Ruben Milllar Ortiz
Ruben Milllar Ortiz

Senior Administrative Manager

Open to offers · Member since 18 Sep 2026
Location
La Paz, Bolivia
Desired salary
8000–8000 USD/monthly
Work preference
Remote Only / Full Time, Part Time, Contract, Temporary
Experience level
Senior

About

Professional summary

I am a Commercial Engineer with more than 11 years of experience in business administration, operations, budgeting, logistics, human resources, inventory control, and customer service.

I currently manage administrative operations for a concrete plant, including budget planning, petty cash, supplier payments, purchasing, fuel-consumption control, personnel administration, and maintenance budget oversight.

I have led teams of up to 36 people and have experience in recruitment, training, performance evaluation, staff scheduling, motivation, and compliance with internal procedures.

My background includes retail administration, external consulting, production control, sales advisory, accounting support, and operational process improvement across construction, consumer goods, publishing, and marketing sectors.

I am skilled in developing procedures, production controls, KPIs, budgets, cost allocation models, reports, and quality-management practices. I have worked with ISO 9001 and NB 604-related standards and annual audits.

I bring strong negotiation, supplier-management, planning, analytical, and customer-service skills, with the adaptability to work with different enterprise software systems and business environments.

Skills

38 capabilities

Experience

Career history

Administrative Manager Preforte S.A.

I manage the administrative operation of a concrete plant, including economic and budgetary tasks, assigned funds, petty cash, supplier payments, procurement, and budget planning and reporting.

I oversee supplier evaluation and negotiation, fuel-consumption and yield controls, administrative procedures, the Joint Committee, personnel-related operational matters, and maintenance budgets. I also support production controls and implement ISO 9001 and NB 604-based standards subject to annual audits.

I supervise, evaluate, and train personnel across established roles, leading a team of 36 people.

Store Administrator Pertec S.R.L.

Managed store personnel, including training, onboarding, recruitment, candidate selection, interviews, and staff performance oversight.

Controlled inventory, stock levels, merchandise rotation, logistics, delivery routes, and sales targets. Developed annual sales plans and monitored staff responsibilities according to internal regulations and procedural manuals.

Built and organized work teams using qualitative and quantitative evaluations, planned personnel rotations, and supported special customer import requests. Led 25 people.

External Consultant Hebrón Impresores

Designed procedures for each business area, defining functions, responsibilities, and obligations to improve organizational climate and operational control.

Improved budget control, process cost allocation, utility analysis, resource-needs assessment, and production quality throughout the production cycle.

Provided business advisory services, including import budgeting, profitability analysis, and financing alternatives through banking arrangements.

External Consultant Art Graf Color S.R.L.

Proposed and implemented production controls, schedules, waste-control measures, and procedures for production areas.

Prepared technical reports demonstrating operational efficiency and production improvements. Also served as the HR area lead, managing payroll, salaries, AFP, subsidies, CNS processes, personnel control, recruitment, hiring, and employee affiliations.

Supervised and evaluated operational personnel, leading a team of 20 people.

Commercial Advisor Essencial View

Acquired new clients, managed customer portfolios, and supported client retention through delivery and follow-up of consulting services.

Provided guidance to clients regarding work procedures and collaborated with design, human resources, advertising, and marketing areas.

External Consultant Editorial Tupac Katari

Implemented manuals and procedures based on organizational needs, defining functions, controls, organizational charts, and responsibilities.

Established production-cost allocation practices and economic controls by process and work order. Proposed administrative guidelines to improve production-cycle efficiency from senior management onward.

Accounting Assistant Hotel Europa

Controlled consumption, inventory, restaurant orders, replenishment expenses, and room-service administrative processes.

Prepared accounting entries and reports, supported graphic-design needs, provided customer service, and helped organize social events for more than 70 attendees.

Supervised 3 people.

External Consultant Industrias Lara Bisch S.A. (ILB)

Proposed and implemented production KPIs, schedules, waste controls, and continuous quality-management evaluations across production areas.

Prepared technical efficiency reports, optimized unproductive time between processes, and established standards to reduce costs and increase profitability.

Education

Learning history

Universidad Tecnológica Boliviana (UTB)

Master's Degree, Business Direction and Administration for SMEs

Currently pursuing a master's degree; less than three months remaining to complete the program.

Universidad Tecnológica Boliviana (UTB)

Bachelor's Degree, Commercial Engineering

Completed a Licenciatura degree in Commercial Engineering.

Instituto Americano

Technical Diploma, Accounting Assistant

Completed technical secondary-level training as an accounting assistant.

Instituto Técnico Superior Atenea SRL.

Technical Diploma, Computerized Design

Incomplete technical program in computerized design; six to twelve months remained to complete.

American Institute (Amerinst)

High School Diploma, Humanities

Completed secondary education in humanities.

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