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Sergio Cassoma

Sergio Cassoma

AI Training Specialist - Web Navigation

ANGOLA flag
Huambo , Angola
$6.00/hrEntry LevelAppen

Key Skills

Software

AppenAppen

Top Subject Matter

No subject matter listed

Top Data Types

DocumentDocument
TextText

Top Label Types

Data Collection
Prompt Response Writing SFT

Freelancer Overview

I am a multidisciplinary professional with hands-on experience in data labeling and annotation for AI training, specializing in human web navigation labeling and web content evaluation. My background in ICT, combined with strong analytical and logical reasoning from my legal studies, enables me to approach data tasks with precision and ethical consideration. I excel in remote environments, consistently ensuring quality control and consistency across projects. I am adaptable, detail-oriented, and committed to delivering accurate, reliable training data for AI systems. My fluency in Portuguese and intermediate English skills further support my ability to work on diverse, global projects.

Entry LevelEnglish

Labeling Experience

No Data Labeling experience added

Sergio C. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

C

Catholic University of Angola (UCAN)

Bachelor of Law, Law

Bachelor of Law
2021 - 2025

Work History

U

Upwork, Appen

ACC109 Lingala - English Translation - Talent Store

Huambo
2025 - 2025