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Jocser Perez

Jocser Perez

AI Training Specialist - Large Language Models

Nicaragua flagGranada, Nicaragua
$8.00/hrIntermediateOther

Key Skills

Software

Other

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
ImageImage
TextText

Top Task Types

Audio Recording
Classification
Data Collection
Evaluation Rating
Segmentation
Text Generation
Transcription

Freelancer Overview

I am a bilingual AI training specialist with hands-on experience in data annotation, labeling, and evaluation for large language models and multimodal AI systems. My expertise includes applying complex scoring rubrics, prompt engineering, and conducting live voice testing on both Android and iOS devices. I have worked extensively on tasks such as model comparison, high-fidelity transcription, and acoustic variability testing, focusing on NLP and speech data in both English and Spanish. My background also includes high-volume text classification, data recording, and quality assurance, ensuring technical accuracy and linguistic consistency across diverse datasets. I am detail-oriented, skilled in following complex instructions, and passionate about contributing to the development of robust, multilingual AI solutions.

IntermediateEnglishSpanish

Labeling Experience

Speech Data Contributor - Outlier

OtherAudioData Collection
As a Speech Data Contributor at Outlier, I recorded structured conversational dialogues in Latin American Spanish to train conversational AI models. I performed acoustic testing by capturing audio samples in challenging environments to enhance ASR robustness. This role supported the development of more natural and resilient speech recognition systems. • Collected real-world conversational datasets for AI training. • Recorded speech in various high-noise settings. • Enhanced data diversity for acoustic model generalization. • Focused on Latin American Spanish voice data contributions.

As a Speech Data Contributor at Outlier, I recorded structured conversational dialogues in Latin American Spanish to train conversational AI models. I performed acoustic testing by capturing audio samples in challenging environments to enhance ASR robustness. This role supported the development of more natural and resilient speech recognition systems. • Collected real-world conversational datasets for AI training. • Recorded speech in various high-noise settings. • Enhanced data diversity for acoustic model generalization. • Focused on Latin American Spanish voice data contributions.

2025 - 2025

AI Generalist & Content Evaluator - Digital Platforms

OtherTextClassification
In my role as AI Generalist & Content Evaluator on Digital Platforms, I ranked and classified AI-generated text responses in English and Spanish. I used complex multi-dimensional rubrics for assessment and undertook high-volume annotation projects. My work ensured precision and tone alignment in multilingual datasets for AI improvement. • Executed text classification and labeling tasks to meet strict quality goals. • Applied advanced rubrics for comprehensive evaluation. • Ensured grammatical and regional accuracy in Spanish transcriptions. • Contributed to bilingual dataset integrity and reliability.

In my role as AI Generalist & Content Evaluator on Digital Platforms, I ranked and classified AI-generated text responses in English and Spanish. I used complex multi-dimensional rubrics for assessment and undertook high-volume annotation projects. My work ensured precision and tone alignment in multilingual datasets for AI improvement. • Executed text classification and labeling tasks to meet strict quality goals. • Applied advanced rubrics for comprehensive evaluation. • Ensured grammatical and regional accuracy in Spanish transcriptions. • Contributed to bilingual dataset integrity and reliability.

2025 - 2025

AI Training Specialist - Productive Playhouse

OtherAudioEvaluation Rating
As an AI Training Specialist at Productive Playhouse, I evaluated live voice interactions with conversational AI on Android and iOS devices. I audited and compared AI chat models, focusing on logic, safety, and naturalness of responses using structured rubrics. Additionally, I developed tailored prompts to rigorously assess AI language function in bilingual settings. • Conducted voice testing involving NLP, latency, and accent recognition in Latin American Spanish. • Applied scoring rubrics to rank and benchmark generative AI models. • Performed targeted prompt engineering for instruction validation. • Ensured quality and accuracy in AI-generated responses through bilingual evaluation.

As an AI Training Specialist at Productive Playhouse, I evaluated live voice interactions with conversational AI on Android and iOS devices. I audited and compared AI chat models, focusing on logic, safety, and naturalness of responses using structured rubrics. Additionally, I developed tailored prompts to rigorously assess AI language function in bilingual settings. • Conducted voice testing involving NLP, latency, and accent recognition in Latin American Spanish. • Applied scoring rubrics to rank and benchmark generative AI models. • Performed targeted prompt engineering for instruction validation. • Ensured quality and accuracy in AI-generated responses through bilingual evaluation.

2025 - 2025

Education

E

E4CC Academy

Certificate in English Language, English Language

Certificate in English Language
2024 - 2026
C

Covao Nocturno CR

Diploma in Automotive Technology, Automotive Technology

Diploma in Automotive Technology
2014 - 2017

Work History

C

COOPEINSERMU R.L.

Sales and Customer Experience Specialist

Granada
2016 - 2023
V

Veinsa Motors

Automotive Technician

Granada
2014 - 2015