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I’m David Medina, a Senior Full-Stack Software Engineer and founder of DMTEC Solutions LLC. I specialize in cloud-native products, AI/LLM integrations, automation, and modern web platforms. I deliver production systems using React/Next.js, Node.js, Python, and .NET, focusing on scalable architecture, reliability, and rapid delivery. I design cloud deployments across AWS, Azure, Vercel, and Cloudflare; I build AI-enabled features using OpenAI/Azure OpenAI, Claude, LangChain, and RAG patterns; I develop scraping pipelines, browser automation, and enterprise workflow automation; I love building event-driven, serverless systems with secure integrations (OAuth 2.0) and robust CI/CD.…I’m David Medina, a Senior Full-Stack Software Engineer and founder of DMTEC Solutions LLC. I specialize in cloud-native products, AI/LLM integrations, automation, and modern web platforms. I deliver production systems using React/Next.js, Node.js, Python, and .NET, focusing on scalable architecture, reliability, and rapid delivery. I design cloud deployments across AWS, Azure, Vercel, and Cloudflare; I build AI-enabled features using OpenAI/Azure OpenAI, Claude, LangChain, and RAG patterns; I develop scraping pipelines, browser automation, and enterprise workflow automation; I love building event-driven, serverless systems with secure integrations (OAuth 2.0) and robust CI/CD.

David Medina

Full Stack Developer, Web Developer, Back-End Developer, +4

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I’m David Medina, a Senior Full-Stack Software Engineer and founder of DMTEC Solutions LLC. I specialize in cloud-native products, AI/LLM integrations, automation, and modern web platforms. I deliver production systems using React/Next.js, Node.js, Python, and .NET, focusing on scalable architecture, reliability, and rapid delivery. I design cloud deployments across AWS, Azure, Vercel, and Cloudflare; I build AI-enabled features using OpenAI/Azure OpenAI, Claude, LangChain, and RAG patterns; I develop scraping pipelines, browser automation, and enterprise workflow automation; I love building event-driven, serverless systems with secure integrations (OAuth 2.0) and robust CI/CD.…I’m David Medina, a Senior Full-Stack Software Engineer and founder of DMTEC Solutions LLC. I specialize in cloud-native products, AI/LLM integrations, automation, and modern web platforms. I deliver production systems using React/Next.js, Node.js, Python, and .NET, focusing on scalable architecture, reliability, and rapid delivery. I design cloud deployments across AWS, Azure, Vercel, and Cloudflare; I build AI-enabled features using OpenAI/Azure OpenAI, Claude, LangChain, and RAG patterns; I develop scraping pipelines, browser automation, and enterprise workflow automation; I love building event-driven, serverless systems with secure integrations (OAuth 2.0) and robust CI/CD.

Available to hire

I’m David Medina, a Senior Full-Stack Software Engineer and founder of DMTEC Solutions LLC. I specialize in cloud-native products, AI/LLM integrations, automation, and modern web platforms. I deliver production systems using React/Next.js, Node.js, Python, and .NET, focusing on scalable architecture, reliability, and rapid delivery.

I design cloud deployments across AWS, Azure, Vercel, and Cloudflare; I build AI-enabled features using OpenAI/Azure OpenAI, Claude, LangChain, and RAG patterns; I develop scraping pipelines, browser automation, and enterprise workflow automation; I love building event-driven, serverless systems with secure integrations (OAuth 2.0) and robust CI/CD.

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Work Experience

Owner & Software Engineer at DMTEC Solutions LLC

December 1, 2022 - Present

Deliver end-to-end web products using React/Next.js, Node.js/NestJS, Python, and .NET. Build AI-enabled features using OpenAI/Azure OpenAI, Claude, LangChain, and RAG patterns. Develop scraping pipelines, browser automation, and file/OCR processing for enterprise workflows. Architect cloud deployments across AWS, Azure, Vercel, and Cloudflare; implement CI/CD and production debugging practices. Design event-driven and serverless systems, scheduling engines, approval flows, and secure integrations (OAuth 2.0).

Software Engineer at Meetopolis

February 1, 2019 - February 1, 2022

Built and maintained Node.js/Express microservices supporting a high-traffic platform. Migrated legacy services to Azure Functions to improve scalability and cost efficiency. Integrated and supported .NET components within a cloud environment. Improved backend performance, security, and API reliability through refactoring and operational hardening.

Frontend Developer at LJC Tech, Inc.

November 1, 2017 - January 1, 2019

Developed React single-page applications and reusable UI components. Partnered with backend teams to refine data flows and reduce API overhead. Improved UX via layout restructuring, state optimization, and performance tuning. Built and maintained internal tools supporting business operations.

Frontend Developer at LJC Tech, Inc

November 1, 2017 - January 1, 2019

Developed React-based single-page applications and internal tools; partnered with backend teams to improve data flows and reduce API overhead. Improved UX and performance through layout restructuring, state optimization, and reusable component patterns.