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Justin Browning

@justinbrowning

Senior Full Stack & AI Developer at SITEK Inc, integrating RAG-powered document intelligence into production products.

At SITEK Inc, I architect and ship full-stack applications and bring OpenAI and Anthropic capabilities into production through RAG pipelines, vector databases, and semantic search.

I built an AI-powered document intelligence platform with Next.js, FastAPI, PostgreSQL, and pgvector, enabling semantic search and document Q&A, summarization, and classification.

I’ve also optimized PostgreSQL queries at SITEK Inc to achieve 28% faster response times, and contributed to deployment workflows that became 27% faster. Before that, I delivered backend services at Globalluxsoft and full-stack applications at AVI-SPL.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack & AI Developer

Current

SITEK Inc

Feb 2024 - Present (2 years 8 months)

Architected and shipped full-stack applications using Next.js, React, Node.js, TypeScript, and Python (FastAPI/Django). Led AI/LLM integration into production, including OpenAI and Anthropic APIs, RAG pipelines, and vector databases, and optimized PostgreSQL schemas for 28% faster query responses.

Next.js React TypeScript NodeJS Python fastAPI Django Go PostgreSQL NoSQL LLM APIs RAG Vector Databases Docker AWS CI CD

Senior Backend Developer

Globalluxsoft

Oct 2020 - Oct 2023 (3 years)

Designed and delivered scalable backend services using Node.js, Python (FastAPI, Django), Go, TypeScript, and Ruby on Rails. Engineered RESTful APIs and microservices, optimized PostgreSQL and NoSQL data models, and reduced frontend defects by 35%.

NodeJS Python fastAPI Django Go Ruby on Rails TypeScript PostgreSQL NoSQL REST APIs Docker AWS CI CD

Full Stack Developer

AVI-SPL

Sep 2017 - Jul 2020 (2 years 10 months)

Built and delivered responsive full-stack applications using React/Angular, JavaScript, PHP, Laravel, and Node.js. Integrated RESTful APIs and database-driven functionality, improving application performance by 20%.

React Angular JavaScript PHP Laravel NodeJS ExpressJS MySQL REST APIs

Frontend Developer

NetGain Technologies, LLC

Sep 2014 - Jun 2017 (2 years 9 months)

Developed responsive, user-friendly web interfaces using modern frontend technologies. Improved frontend usability and cross-browser compatibility, contributing to a 32% improvement in usability and stability.

JavaScript HTML5 CSS REST APIs Responsive Design