e
eliezer_vargas

Eliezer Vargas

@eliezer_vargas

CRM,ERP And Speech Technologies Engineer TTS,STT

Brazil
Portuguese, English
About me
As a CRM and app development specialist, I have extensive experience building web and mobile solutions, with a strong focus on AI-powered technologies. I have successfully developed and integrated TTS/STT engines, including training British English models, and delivering fully functional Android (APK) and iOS (IPA) applications. My expertise spans optimizing CRM systems and creating custom applications that enhance user experience and business performance. I am passionate about turning complex technical challenges into seamless, practical solutions that drive measurable results.... Read more

Skills

e
eliezer_vargas
Eliezer Vargas
Offline • 
Average response time: 288 hours

See my services

Custom Websites
I will be your expert full stack web developer for your business
From$80 / projectMore details
AI Integrations
I will develop and integrate custom tts, stt engine for mobile apps
From$1,000 / projectMore details

Portfolio

Work experience

Lead Developer & AI Integration Architect

Qualysoft • Full-time

May 2022 - Aug 2024 • 2 yrs 3 mos

Led a cross-functional team of developers and data scientists to build a real-time healthcare system with four portals, evaluating the potential for AI adoption for each portal, designing each feature, and directing its development. Implemented AI-driven healthcare Solutions, including a virtual medical chatbot for symptom assessment, personalized health assistants for medication and wellness tracking, and predictive analytics tools for chronic disease risk assessment. Developed a RAG-based document processing engine , integrated into a hospital management system using LangChain and Pinecone, enabling semantic search and summarization of medical records. This reduced manual effort in extracting, classifying, and summarizing medical reports from PDFs by 60%. Automated patient communication, appointment scheduling, and follow-up workflows in a hospital management system using CRM integration, improving operational efficiency and patient engagement. Built and deployed serverless AI inference APIs on AWS Lambda and Azure Functions , handling over 50K requests/day with latency under 200ms . Engineered scalable microservices using Docker and Kubernetes , reducing deployment time by 40% and improving system reliability.

TTS Engine Development

Buzzvel • Full-time

Feb 2021 - Nov 2021 • 9 mos

I developed a high-quality Portuguese speech engine while working with a company in Portugal. This experience allowed me to gain deep expertise in language-specific modeling, pronunciation accuracy, and accent handling. I successfully optimized the engine for real-world applications, ensuring reliability and natural output. My work demonstrates strong experience in building and deploying advanced TTS/STT systems for international markets