Sergio L.

Key Skills

Software

Data Annotation Tech

Top Subject Matter

AI tutoring/rubric-based evaluation

Student level coding, Python, Java.

Top Data Types

Text

Top Task Types

Classification

Text Generation

Text Summarization

Question Answering

RLHF

Evaluation/Rating

Computer Programming/Coding

Prompt + Response Writing (SFT)

Freelancer Overview

AI training and data annotation (rubric/rating oriented). Core strengths include logical reasoning and great learning and improving capability. Education includes Bachelor of Engineering in Computer Science, Universidad Politécnica de Valencia (2025) and Baccalaureate (Technological Track), Escuelas Profesionales Luis-Amigó (2025). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

AI training and data annotation (rubric/rating oriented)

Text

Provided AI training and data annotation support focused on rubric-driven evaluation tasks. Applied structured annotation guidelines to create and refine complex rubrics for consistent scoring. Contributed to labeling work aimed at improving model or tutoring quality through careful review and iteration. • Data annotation and AI training assistance • Complex rubric creation and maintenance • Consistency-focused guideline application • Review/iteration to improve label quality

2025 - 2025

Education

Work History