Valentina O.

Key Skills

Software

Other

Scale AI

Labelbox

Top Subject Matter

LLM response evaluation

speech-to-text quality

AI-generated content annotation and evaluation

Top Data Types

Text

Audio

Document

Top Task Types

Classification

Data Collection

Text Generation

Text Summarization

RLHF

Fine-tuning

Evaluation/Rating

Prompt + Response Writing (SFT)

Freelancer Overview

LLM Specialist, Alconost. Brings 10+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Bachelor of Science, National Open University of Nigeria (2021) and National Diploma, Marvel Institute Of Management & Technology (2017). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

LLM Specialist, Alconost

Text

Evaluated and ranked AI-generated responses to improve overall model accuracy and response quality. Reviewed speech-to-text outputs and corrected them to ensure linguistic accuracy and consistency. • Assessed response performance against expected quality criteria • Performed error identification and remediation on outputs • Supported model accuracy improvements through structured evaluation • Ensured labeled data and annotations aligned with quality standards

2026 - Present

Data Annotator, Outlier

OtherTextClassification

Annotated, labeled, and evaluated AI-generated content to identify errors and inconsistencies. Applied detailed project guidelines and quality standards to produce accurate, consistent labels across large datasets. • Labeled datasets to improve model reasoning and contextual understanding • Detected and documented content issues affecting model reliability and safety • Provided structured, actionable feedback to AI/language model teams • Ensured quality compliance for large-scale annotation workflows

2025 - 2026

Data Analyst, Dotmac Technologies Ltd

OtherTextData Collection

While serving as a Data Analyst, contributed to reporting and decision support through structured analysis and dashboard delivery rather than direct AI labeling. Focused on identifying key drivers and improving business outcomes through data-driven insights. • Produced multiple dashboards for stakeholder reporting • Analyzed churn drivers to support retention improvements • Improved reporting turnaround time and operational effectiveness • Managed a small team to deliver analytics outputs

2023 - 2025

Education

Work History