Marcelo Deleon

Key Skills

Software

Data Annotation Tech

Labelbox

Top Subject Matter

AI Technical Evaluation

Rlhf Domain Expertise

LLM Training

Top Data Types

Document

Video

Text

Image

Audio

Top Task Types

Classification

Audio Recording

Freelancer Overview

AI Technical Evaluator & Software Auditor. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox. Education includes High School Diploma, N/A (2025). AI-training focus includes data types such as Computer Code, Programming, and Audio and labeling workflows including Evaluation, Rating, and Audio Recording.

Labeling Experience

Voice Actor & Spanish Emotional Intelligence Specialist

LabelboxAudioAudio Recording

As a Voice Actor & Spanish Emotional Intelligence Specialist at Labelbox/Alignerr, I produced high-fidelity audio prompts to enrich model training for AI systems targeting Central American dialects. My responsibilities involved generating diverse emotional expressions and applying adversarial prompting (sarcasm, masked emotions, cultural codes) to enhance the reasoning limits of AI models. I collaborated with technical teams to ensure that all verbal data was accurately annotated for emotional intelligence and semantic analysis. • Generated audio samples emphasizing regional emotional lexicons and nuances. • Applied adversarial prompting to diversify LLM training data and model robustness. • Focused on Central American dialect for linguistic fine-tuning and AI adaptation. • Supplied phonetically rich, well-labeled audio annotations for AI training platforms.

As a Voice Actor & Spanish Emotional Intelligence Specialist at Labelbox/Alignerr, I produced high-fidelity audio prompts to enrich model training for AI systems targeting Central American dialects. My responsibilities involved generating diverse emotional expressions and applying adversarial prompting (sarcasm, masked emotions, cultural codes) to enhance the reasoning limits of AI models. I collaborated with technical teams to ensure that all verbal data was accurately annotated for emotional intelligence and semantic analysis. • Generated audio samples emphasizing regional emotional lexicons and nuances. • Applied adversarial prompting to diversify LLM training data and model robustness. • Focused on Central American dialect for linguistic fine-tuning and AI adaptation. • Supplied phonetically rich, well-labeled audio annotations for AI training platforms.

2024 - Present

AI Technical Evaluator & Software Auditor

Labelbox

As an AI Technical Evaluator & Software Auditor at Labelbox/Alignerr, I developed and executed evaluation scripts for validating AI agent behaviors. My key contributions included implementing robust unit tests for both static and runtime verification using Lua and creating technical rubrics in JSON and documentation in Markdown for model assessment. I ensured that all evaluation procedures upheld strict data integrity and clarity for Reinforcement Learning from Human Feedback (RLHF) purposes. • Authored and maintained comprehensive evaluation scripts (_eval.lua) and technical rubrics for client projects. • Conducted systematic code auditing and validation in Roblox Studio to ensure logical consistency and safety. • Utilized RLHF methodologies to inform model assessment and feedback cycles. • Collaborated closely with cross-functional teams to integrate data integrity guidelines.

As an AI Technical Evaluator & Software Auditor at Labelbox/Alignerr, I developed and executed evaluation scripts for validating AI agent behaviors. My key contributions included implementing robust unit tests for both static and runtime verification using Lua and creating technical rubrics in JSON and documentation in Markdown for model assessment. I ensured that all evaluation procedures upheld strict data integrity and clarity for Reinforcement Learning from Human Feedback (RLHF) purposes. • Authored and maintained comprehensive evaluation scripts (_eval.lua) and technical rubrics for client projects. • Conducted systematic code auditing and validation in Roblox Studio to ensure logical consistency and safety. • Utilized RLHF methodologies to inform model assessment and feedback cycles. • Collaborated closely with cross-functional teams to integrate data integrity guidelines.

2024 - Present

Maintenance & Data Translation Assistant

Video

As a Maintenance & Data Translation Assistant, I organized and transformed complicated schedule data into clear operational workflows. I executed production and maintenance tasks while adhering to quality standards. The position demanded proficiency in Excel, time management, and attention to detail. • Translated fragmented Excel schedules into actionable workflows. • Conducted critical maintenance to support seamless operations. • Maintained documentation and labeling with strict quality control. • Supported various production processes with reliable task execution.

As a Maintenance & Data Translation Assistant, I organized and transformed complicated schedule data into clear operational workflows. I executed production and maintenance tasks while adhering to quality standards. The position demanded proficiency in Excel, time management, and attention to detail. • Translated fragmented Excel schedules into actionable workflows. • Conducted critical maintenance to support seamless operations. • Maintained documentation and labeling with strict quality control. • Supported various production processes with reliable task execution.

2025 - 2025

Logistics & Customer Support Specialist

Video

In the Logistics & Customer Support role, I managed the end-to-end uniform logistics process for schools. I was responsible for inventory, direct customer service, and digital communications. The position required effective coordination, record keeping, and interaction with diverse clients. • Coordinated logistics for deliveries, including counting, labeling, and transport of uniforms. • Performed sales and provided personalized guidance for customer sizing and needs. • Streamlined billing by maintaining pre-sale and inventory records. • Managed chats to resolve orders and inquiries in real time.

In the Logistics & Customer Support role, I managed the end-to-end uniform logistics process for schools. I was responsible for inventory, direct customer service, and digital communications. The position required effective coordination, record keeping, and interaction with diverse clients. • Coordinated logistics for deliveries, including counting, labeling, and transport of uniforms. • Performed sales and provided personalized guidance for customer sizing and needs. • Streamlined billing by maintaining pre-sale and inventory records. • Managed chats to resolve orders and inquiries in real time.

2025 - 2025

AI Data Annotation and Labeling (Technical Skills/Competencies)

TextClassification

Worked on data annotation and labeling tasks as part of AI tool proficiency and workflow optimization exercises. Utilized semantic analysis and structured taxonomies for synthesizing information into AI-ready datasets. Applied complex rubrics for text and image categorization as highlighted under technical and core competencies. • Synthesized large volumes of data into high-quality, structured outputs for AI model training. • Applied standardized guidelines to categorize complex text and media inputs. • Leveraged advanced Excel automation for structured data labeling and validation. • Developed taxonomies and utilized semantic analysis for accurate classification.

Worked on data annotation and labeling tasks as part of AI tool proficiency and workflow optimization exercises. Utilized semantic analysis and structured taxonomies for synthesizing information into AI-ready datasets. Applied complex rubrics for text and image categorization as highlighted under technical and core competencies. • Synthesized large volumes of data into high-quality, structured outputs for AI model training. • Applied standardized guidelines to categorize complex text and media inputs. • Leveraged advanced Excel automation for structured data labeling and validation. • Developed taxonomies and utilized semantic analysis for accurate classification.

Not specified

Education

Work History