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Hi, I’m Justin Duane Harlan, a Principal Software Architect and Full-Stack Engineer based in Houston, TX, with 18+ years of experience designing scalable web platforms, AI-enabled automation, real-time systems, and geospatial applications. I enjoy turning complex business requirements into secure, maintainable architectures and leading cross-functional teams to deliver high-impact software solutions. I thrive on modernizing legacy systems, improving performance, automating operations, and building privacy-conscious tooling. My hands-on experience spans TypeScript/JavaScript, React, Vue.js, Node.js, PHP/WordPress, SQL/MySQL, OSINT pipelines, and geospatial visualization, enabling me to deliver end-to-end technology strategy and execution that drives measurable business outcomes.…Hi, I’m Justin Duane Harlan, a Principal Software Architect and Full-Stack Engineer based in Houston, TX, with 18+ years of experience designing scalable web platforms, AI-enabled automation, real-time systems, and geospatial applications. I enjoy turning complex business requirements into secure, maintainable architectures and leading cross-functional teams to deliver high-impact software solutions. I thrive on modernizing legacy systems, improving performance, automating operations, and building privacy-conscious tooling. My hands-on experience spans TypeScript/JavaScript, React, Vue.js, Node.js, PHP/WordPress, SQL/MySQL, OSINT pipelines, and geospatial visualization, enabling me to deliver end-to-end technology strategy and execution that drives measurable business outcomes.

Justin Duane Harlan

Full Stack Developer, Web Developer, AI Developer, +2

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Hi, I’m Justin Duane Harlan, a Principal Software Architect and Full-Stack Engineer based in Houston, TX, with 18+ years of experience designing scalable web platforms, AI-enabled automation, real-time systems, and geospatial applications. I enjoy turning complex business requirements into secure, maintainable architectures and leading cross-functional teams to deliver high-impact software solutions. I thrive on modernizing legacy systems, improving performance, automating operations, and building privacy-conscious tooling. My hands-on experience spans TypeScript/JavaScript, React, Vue.js, Node.js, PHP/WordPress, SQL/MySQL, OSINT pipelines, and geospatial visualization, enabling me to deliver end-to-end technology strategy and execution that drives measurable business outcomes.…Hi, I’m Justin Duane Harlan, a Principal Software Architect and Full-Stack Engineer based in Houston, TX, with 18+ years of experience designing scalable web platforms, AI-enabled automation, real-time systems, and geospatial applications. I enjoy turning complex business requirements into secure, maintainable architectures and leading cross-functional teams to deliver high-impact software solutions. I thrive on modernizing legacy systems, improving performance, automating operations, and building privacy-conscious tooling. My hands-on experience spans TypeScript/JavaScript, React, Vue.js, Node.js, PHP/WordPress, SQL/MySQL, OSINT pipelines, and geospatial visualization, enabling me to deliver end-to-end technology strategy and execution that drives measurable business outcomes.

Available to hire

Hi, I’m Justin Duane Harlan, a Principal Software Architect and Full-Stack Engineer based in Houston, TX, with 18+ years of experience designing scalable web platforms, AI-enabled automation, real-time systems, and geospatial applications. I enjoy turning complex business requirements into secure, maintainable architectures and leading cross-functional teams to deliver high-impact software solutions.

I thrive on modernizing legacy systems, improving performance, automating operations, and building privacy-conscious tooling. My hands-on experience spans TypeScript/JavaScript, React, Vue.js, Node.js, PHP/WordPress, SQL/MySQL, OSINT pipelines, and geospatial visualization, enabling me to deliver end-to-end technology strategy and execution that drives measurable business outcomes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Founder & Principal Software Architect at Golden Obsidian LLC

June 1, 2020 - Present

Architected an AI-enabled business operating system that integrates autonomous chatbots and agentic workflows, reducing manual operational tasks by 65%. Established scalable application, API, data, and automation architecture across multiple internal products and client-facing digital services. Built a privacy-first local LLM development environment to reduce reliance on cloud providers and keep sensitive operational data within controlled infrastructure. Deployed Crawlee-based OSINT pipelines to collect regional business metadata and state filing data, shortening collection cycles from weeks to hours. Integrated compliance and data workflows with Texas Comptroller resources, cutting filing turnaround time by 50%.

Strategic Technical Consultant at Independent Consulting

June 1, 2004 - Present

Designed and delivered scalable web architectures, custom frameworks, WordPress solutions, and legacy modernization programs for clients across multiple industries. Improved client system performance by an average of 35% through codebase refactoring, database optimization, and adoption of modern full-stack engineering patterns.

Vue Developer at RateGenius

May 1, 2022 - December 1, 2022

Optimized Vue.js components for internal financial applications, improving interface responsiveness and reducing page-load times by 25% for high-traffic workflows. Partnered with product and engineering teams to streamline front-end delivery, reducing development time for new feature releases by 15%.

IT/GIS Specialist & Projects Administrator at Phillips and Jordan, Inc.

October 1, 2018 - October 1, 2019

Developed GIS tools and operational databases for disaster-recovery programs, reducing data retrieval latency by 40% for field project managers. Automated critical data and reporting workflows, eliminating approximately 15 hours of manual work per week.

Front-End Software Engineer at Tillster Inc.

January 1, 2014 - June 1, 2016

Built scalable, accessible, cross-browser front-end interfaces for enterprise consumer applications. Collaborated with UX and product teams to reduce user friction, contributing to a 12% increase in engagement across core product modules.

Lead Full-Stack PHP Developer at Eton Bioscience

December 1, 2012 - November 30, 2014

Architected full-stack PHP applications that modernized laboratory workflows and reduced order-processing errors by 30%. Led a codebase modernization initiative that improved system stability and reduced server-side crashes by 45%.