Alex M.

Key Skills

Software

Other

Appen

Argilla

Axiom AI

CloudFactory

Mercor

Mindrift

AWS SageMaker

Toloka

Top Subject Matter

Structured spreadsheet data categorization and quality review

Tabular data cleaning and transformation for annotation readiness

Legal Services & Contract Review

Top Data Types

Text

Document

Image

Top Task Types

Classification

Data Collection

Freelancer Overview

AI Data Labeling Specialist — Freelance (Direct Client Project, 2024). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor's Degree, N/A. AI-training focus includes data types such as Text and labeling workflows including Classification and Data Collection.

Labeling Experience

Freelance Excel Expert & Data Analyst (Self-Employed, 2023 – Present)

OtherTextData Collection

Worked as a self-employed Excel expert performing data cleaning, transformation, and structuring that aligns with data preparation workflows used for labeling and AI training. Built Power Query and VBA automation to standardize and reduce errors so datasets can support consistent downstream categorization and analysis. Produced structured reporting dashboards and cleaned datasets by removing duplicates, correcting structural inconsistencies, and standardizing formats. • Cleaned and restructured large raw datasets from CSV/external sources • Implemented Power Query workflows and refreshable transformations • Used VBA macro automation for reproducible data processing • Standardized formats and corrected structural errors for downstream analysis

2023 - Present

AI Data Labeling Specialist — Freelance (Direct Client Project, 2024)

OtherTextClassification

Provided spreadsheet-based labeling and categorization of structured data for a direct client using the project’s annotation guidelines. Maintained consistent classification logic across the full dataset and ensured labeled outputs were accurate and reliable. Completed quality reviews to identify and correct inconsistencies before delivery. • Labeled and categorized structured spreadsheet data • Followed classification guidelines precisely • Performed quality review and correction of inconsistencies • Delivered a fully categorized dataset within a 3-day deadline

2024

Education

Work History