Gilberto

Key Skills

Software

Other

Appen

Clickworker

Top Subject Matter

AI training data annotation

conversational safety/alignment evaluation

English–Hausa localization

Top Data Types

Image

Document

Text

Top Task Types

Data Collection

Evaluation/Rating

Prompt + Response Writing (SFT)

Freelancer Overview

Freelance Data Annotation Specialist & AI Trainer (Remote / Self-Employed). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Science, Undergraduate Program. AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

Digital Optimization & Lead Generation Specialist (Freelance / Remote)

OtherText

Freelance Digital Optimization & Lead Generation Specialist performing programmatic and manual web research to extract informational datasets used for online market classification. Supported targeted inbound web traffic strategies through cost-per-action content-delivery workflows with contextually accurate datasets. Contributed to data-driven optimization by organizing and validating extracted web content for downstream classification tasks. • Programmatic and manual extraction of informational datasets • Online market classification support via research outputs • Dataset validation for contextually accurate web traffic targeting • Operational compliance with secure content-delivery funnels

2025 - Present

Freelance Data Annotation Specialist & AI Trainer (Remote / Self-Employed)

OtherText

Freelance Data Annotation Specialist & AI Trainer providing multi-format AI training data annotation and evaluation services for international micro-tasking workflows. Performed safety, alignment, factual accuracy, and linguistic integrity checks on complex AI-generated multi-turn conversational datasets. Translated and localized English–Hausa informational assets with semantic alignment validation to meet project quality metrics. • Semantic text classification and search relevance evaluation • LLM prompt verification and conversational data refinement • Image classification and annotation as part of multi-modal labeling • Quality compliance exceeding 90% through strict adherence to technical constraints

2024 - Present

Education

Work History