Lucas Mello

Key Skills

Software

Toloka

Scale AI

Other

Top Subject Matter

No subject matter listed

Top Data Types

Image

Video

Text

Top Task Types

Bounding Box

Polygon

Segmentation

Entity Ner Classification

Freelancer Overview

I am a dedicated data annotation specialist with extensive experience working on international projects through platforms like Remotasks, Toloka, and Hive Micro. My expertise includes precise labeling of images and videos for computer vision tasks, such as creating bounding boxes and segmenting objects—even in challenging scenarios with fast movement or visual blur. I have a strong track record in ensuring data quality and compliance with project guidelines, as well as handling digital transaction verification and security checks. I quickly adapt to new annotation tools like CVAT, master project instructions efficiently, and leverage advanced keyboard shortcuts to deliver high-quality results on tight deadlines. My focus on detail and commitment to accuracy make me a reliable contributor to AI training data initiatives.

Labeling Experience

Specialist in Natural Language Processing and Entity Classification.

OtherTextEntity Ner Classification

I worked on identifying and labeling specific entities (names, dates, locations, organizations) within large volumes of text for training language AI models. The focus was on ensuring the machine understood the correct context and category of each term, while maintaining rigorous linguistic quality control.

I worked on identifying and labeling specific entities (names, dates, locations, organizations) within large volumes of text for training language AI models. The focus was on ensuring the machine understood the correct context and category of each term, while maintaining rigorous linguistic quality control.

2023 - 2025

Analysis and Classification of Multimedia Content (Toloka/Yandex)

TolokaImageBounding BoxPolygon

Long-term collaboration on content moderation and data classification projects. Tasks included semantic segmentation, bounding boxes for object detection, and high-precision image labeling for machine learning models. I maintained a high accuracy score (90%+) throughout the project, ensuring all datasets met strict quality guidelines.

Long-term collaboration on content moderation and data classification projects. Tasks included semantic segmentation, bounding boxes for object detection, and high-precision image labeling for machine learning models. I maintained a high accuracy score (90%+) throughout the project, ensuring all datasets met strict quality guidelines.

2019 - 2023

Data Analyst and Computer Vision Specialist (Remotasks).

Scale AIVideoPolygonSegmentation

I work on advanced LiDAR and video segmentation projects for autonomous vehicle training. My role involves accurately identifying and tagging moving objects, ensuring AI models receive high-quality data for safe navigation. I use tools like CVAT to deal with heavy datasets, maintaining a constant pace of delivery and above-average accuracy required by projects.

I work on advanced LiDAR and video segmentation projects for autonomous vehicle training. My role involves accurately identifying and tagging moving objects, ensuring AI models receive high-quality data for safe navigation. I use tools like CVAT to deal with heavy datasets, maintaining a constant pace of delivery and above-average accuracy required by projects.

2020 - 2022

Education

Work History