# Jairo Matos Jairo Matos is a remote worker on Himalayas, Staff Software Engineer at HCA Healthcare, based in Dominican Republic. Source: https://himalayas.app/@jairomatos ```text Child Development Psychologist at HCA Healthcare who improved pediatric AI training accuracy by 38%. ``` | Detail | Value | | --- | --- | | Availability | Looking for a job | | Location | Dominican Republic | | Authorized to work in | Dominican Republic | | Salary expectations | 60k+ USD | | Job categories | Developmental Psychologist, AI Trainer, Data Annotator, Machine Learning Engineer | | Skills | Child Psychology, System Training, Data Annotation, Model Evaluation, Child Development Assessment, Psychometric Analysis, Dataset Curation, Corpus Annotation, Qualitative Analysis, Quantitative Research, Statistical Modeling, Data Validation, Prompt Engineering, LLM Fine tuning, Machine Learning | | LinkedIn | https://linkedin.com/in/jairo-pauluz-matos-4b941b53 | ## About ```text At HCA Healthcare, I designed developmental psychology annotation frameworks for pediatric AI models, improving AI system training accuracy by 38%. I also built annotation pipelines for clinical child-interaction datasets using DSM-aligned developmental criteria. I integrated cognitive assessment rubrics into AI test scenarios and evaluated model responses against child-development benchmarks, producing feedback that guided three model refinement cycles. At TRUGlobal, I developed scenario libraries with 2.3k annotated cases for model fine-tuning and assessed educational content for age-appropriate cognitive load. I also evaluated multilingual child-language datasets and refined scoring rubrics using Bayley, WPPSI, and Vineland conventions. Earlier, I applied child-development expertise to insurance risk models, financial guidance, digital platforms, and Siri interactions at Seguros APS, DataCrédito Experian, CA Soft, and Apple. My work has included pediatric case annotation, culturally relevant evaluation, and guidelines for age-appropriate AI and digital experiences. ``` ## Experience ### Staff Software Engineer HCA Healthcare. Mar 2025 - Sep 2026 ```text Designed developmental psychology annotation frameworks for pediatric AI models, improving training accuracy by 38%. Built data annotation pipelines and integrated cognitive assessment rubrics into AI test case scenarios. ``` Skills: System-Training, Data-Annotation, Model-Evaluation, NLP, Prompt-Engineering, LLM-Fine-tuning, Machine-Learning, Qualitative-Analysis, Quantitative-Research, Dataset-Curation, Corpus-Annotation, Statistical-Modeling, Psychometric-Analysis, Data-Validation, Test-Case-Design, Scenario-Development, QA-Review, Annotation-Quality-Control, Evaluation-and-Benchmarking, AWS, Google-Cloud-Platform, Azure, Jira, Confluence, Notion, Output-Review, Performance-Monitoring, Feedback-Documentation, Annotation-Auditing ### Staff Software Engineer TRUGlobal. Feb 2024 - Feb 2025 ```text Developed AI system training scenario libraries for children's decision-making and peer influence, providing 2.3k annotated cases for model fine-tuning. Applied developmental psychology theory to evaluate AI-generated educational content. ``` Skills: System-Training, Data-Annotation, Model-Evaluation, NLP, Prompt-Engineering, LLM-Fine-tuning, Machine-Learning, Qualitative-Analysis, Quantitative-Research, Dataset-Curation, Corpus-Annotation, Statistical-Modeling, Psychometric-Analysis, Data-Validation, Test-Case-Design, Scenario-Development, QA-Review, Annotation-Quality-Control, Evaluation-and-Benchmarking, AWS, Google-Cloud-Platform, Azure, Jira, Confluence, Notion, Output-Review, Performance-Monitoring, Feedback-Documentation, Annotation-Auditing ### Senior Software Engineer Seguros APS. Sep 2021 - Jan 2024 ```text Constructed child development eligibility criteria for insurance risk models and annotated 9k pediatric case records. Designed AI system training test cases for edge scenarios, improving model recall by 29%. ``` Skills: System-Training, Data-Annotation, Model-Evaluation, NLP, Prompt-Engineering, LLM-Fine-tuning, Machine-Learning, Qualitative-Analysis, Quantitative-Research, Dataset-Curation, Corpus-Annotation, Statistical-Modeling, Psychometric-Analysis, Data-Validation, Test-Case-Design, Scenario-Development, QA-Review, Annotation-Quality-Control, Evaluation-and-Benchmarking, AWS, Google-Cloud-Platform, Azure, Jira, Confluence, Notion, Output-Review, Performance-Monitoring, Feedback-Documentation, Annotation-Auditing ### Software Engineer DataCrédito Experian. Sep 2019 - Feb 2021 ```text Analyzed psychosocial and cognitive assessment variables for financially vulnerable families, providing domain-grounded annotations. Developed data annotation schemas and evaluated AI-generated financial guidance for developmental appropriateness. ``` Skills: System-Training, Data-Annotation, Model-Evaluation, NLP, Prompt-Engineering, LLM-Fine-tuning, Machine-Learning, Qualitative-Analysis, Quantitative-Research, Dataset-Curation, Corpus-Annotation, Statistical-Modeling, Psychometric-Analysis, Data-Validation, Test-Case-Design, Scenario-Development, QA-Review, Annotation-Quality-Control, Evaluation-and-Benchmarking, AWS, Google-Cloud-Platform, Azure, Jira, Confluence, Notion, Output-Review, Performance-Monitoring, Feedback-Documentation, Annotation-Auditing ### Software Engineer CA Soft. May 2018 - Aug 2019 ```text Contributed child development domain expertise to digital platform content review workflows, annotating child-facing UX scenarios. Built annotation guidelines for children's digital commerce interaction data. ``` Skills: System-Training, Data-Annotation, Model-Evaluation, NLP, Prompt-Engineering, LLM-Fine-tuning, Machine-Learning, Qualitative-Analysis, Quantitative-Research, Dataset-Curation, Corpus-Annotation, Statistical-Modeling, Psychometric-Analysis, Data-Validation, Test-Case-Design, Scenario-Development, QA-Review, Annotation-Quality-Control, Evaluation-and-Benchmarking, AWS, Google-Cloud-Platform, Azure, Jira, Confluence, Notion, Output-Review, Performance-Monitoring, Feedback-Documentation, Annotation-Auditing ### Software Engineer [Apple](https://himalayas.app/companies/apple). Apr 2012 - Nov 2017 ```text Designed developmental psychology evaluation protocols for Siri child-interaction scenarios and annotated large-scale digital commerce behavioral datasets. Built cognitive accessibility benchmarks for App Store content rating guidelines. ``` Skills: System-Training, Data-Annotation, Model-Evaluation, NLP, Prompt-Engineering, LLM-Fine-tuning, Machine-Learning, Qualitative-Analysis, Quantitative-Research, Dataset-Curation, Corpus-Annotation, Statistical-Modeling, Psychometric-Analysis, Data-Validation, Test-Case-Design, Scenario-Development, QA-Review, Annotation-Quality-Control, Evaluation-and-Benchmarking, AWS, Google-Cloud-Platform, Azure, Jira, Confluence, Notion, Output-Review, Performance-Monitoring, Feedback-Documentation, Annotation-Auditing ## Education ### FPT University Bachelor of Computer Science, Computer Science. 2001 - 2005 ```text Bachelor of Computer Science from FPT University, completed from 2001 to 2005. ``` ## Tech stack - SAS - Jira - JavaScript - Python - Confluence - Notion - SQL - AWS To contact Jairo, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire). ## People also viewed - [Astin Severino](https://himalayas.app/@astinseverino): Data Analyst, Clara - [Elisabeth Frias](https://himalayas.app/@elisabethfrias): Translator, Copyeditor, Interpreter, Independent Contractor - [SANYA PERALTA](https://himalayas.app/@sanyaperalta): English Audio Transcription Specialist, Alignerr - [Max Guerrier](https://himalayas.app/@maxguerrier): English Professor, PUCMM - [Cristhian Ferreira](https://himalayas.app/@cristhianferreira): Senior Software Developer (Python), Neural Software Solutions - [Nicole Sosa](https://himalayas.app/@nicolesosa1): Science Pedagogical Leader, Comunidad Educativa Lux Mundi - [Melissa Soto Mejia](https://himalayas.app/@melissasotomejia): Billing & Payments Specialist, SimplePractice - [Lisbette Lima Frias](https://himalayas.app/@lisbettelimafrias): Analista Senior de Control de Calidad, Compañía de Seguros Médicos Internacional - [Jonathan Gonzalvo](https://himalayas.app/@jonathangonzalvo): Senior QA Engineer, Bluesky eLearn - [Hector mendez](https://himalayas.app/@hectormendez1): Founder & Lead Developer, Aetherium Software Innovations