Open to opportunities

Valentino Uriel Navajas Jauregui

@valentinourielnavaja

Message

Motivated professional passionate about AI and data annotation.

Spain

Message

What I'm looking for

I seek a role that values innovation and offers opportunities for growth in AI and data.

I am a motivated and adaptable professional with a passion for continuous learning and problem-solving. My strong interpersonal skills and collaborative mindset allow me to thrive in remote team environments. I have hands-on experience in data annotation, prompt engineering, and AI model training, where I focus on curating high-quality datasets to improve machine learning systems and ensure accurate model performance.

Originally trained as a dental prosthetics technician, I bring precision, manual dexterity, and process optimization to every role. I have also worked extensively in hospitality and remote customer service, excelling in fast-paced, multicultural environments that require adaptability, empathy, and reliability. Proficient with a wide range of digital tools and AI-related platforms, I am eager to contribute to innovative, mission-focused remote projects.

Experience

Work history, roles, and key accomplishments

Current

Data Annotation Specialist

Current

DataAnnotation.tech

Jan 2024 - Present (1 year 6 months)

Annotated and labeled diverse data types including text, images, and audio for machine learning model training and evaluation. Validated and reviewed outputs from large language models (LLMs) to ensure alignment with user intent, factual accuracy, and ethical standards.

Data Annotation Machine Learning Model Training Prompt Engineering Quality Assurance Natural Language Understanding Translation

Receptionist and General Assistant

Hostel El Cisne by Nest

Jan 2024 - Present (1 year 6 months)

Prepared breakfasts and meals for guests, ensuring high standards of food quality and presentation. Managed customer service and addressed hostel needs, coordinating with the team to ensure a pleasant stay for all guests.

Customer Service Hospitality Food Preparation Team Coordination Guest Service Problem Solving Time Management

Dental Laboratory Technician

National University of La Plata (UNLP)

Jan 2023 - Present (2 years 6 months)

Designed and fabricated a wide range of dental prosthetics, ensuring functionality, comfort, and aesthetics based on clinical specifications. Applied CAD/CAM technology in digital design and manufacturing workflows, integrating modern software into traditional prosthetic fabrication processes.

Prosthetics CAD CAM Dental Materials Digital Design Workflow Optimization

Education

Degrees, certifications, and relevant coursework

Estudiantes de la Plata (CELP) School

Primary Education, General Studies

Completed primary education at Estudiantes de la Plata (CELP) School in City Bell.

Instituto Manuel Belgrano School

Secondary Education, General Studies

Completed secondary education at Instituto Manuel Belgrano School in City Bell.

National University of La Plata (UNLP)

University Technician, Dental Laboratory Prosthetics

Graduated with a University Technician degree in Dental Laboratory Prosthetics from the National University of La Plata (UNLP). This program provided comprehensive training in the design and fabrication of dental prosthetics.