Justin Juarez

About

I'm a Full-Stack Developer with 10+ years of crafting high-performance digital experiences and AI-powered applications. 🛠️ JavaScript specialist bridging pixel-perfect UIs with scalable backend systems and modern AI workflows — equally comfortable in Financial, Travel, Healthcare, eCommerce, and SaaS environments. ⚡ Full-Stack Velocity Frontend: Next.js | React | TypeScript | Svelte | Vue Backend: Python/Django | Node.js | NestJS | Mobile: React Native | Expo (iOS/Android) | Flutter Database: PostgreSQL | MongoDB | Redis AI: TensorFlow, Langchain, Pytorch, OpenAI, Claude AI, RAG Pipelines, Vector Database, ChatGPT, Perplexity, Google Gemini Commerce & Integration Superpowers 🛒 WordPress Shopify Ecosystem Master Built 30+ custom apps with Node.js/React integrations Developed headless storefronts hitting 95+ Lighthouse scores Engineered real-time inventory sync for 50K+ SKU catalogs Integrated AI-powered automation, chatbots, and intelligent workflow systems into production applications How I Drive Business Impact 📈 ROI-Focused Development -Boosted eCommerce conversion rates by 22% through checkout optimizations -Slashed mobile bounce rates by 40% with React Native performance tuning -Automated WordPress<>ERP integrations saving 200+ operational hours/month -Built AI-assisted workflows and internal tools that improved operational efficiency and decision-making 🛡️ Future-Proof Architecture -Migrated 15 legacy systems to modern stacks (MERN, JAMstack) -Implemented CI/CD pipelines enabling 20+ daily deployments -Architected microservices handling 10K+ concurrent users -Built scalable AI-ready systems with LLM integrations, vector databases, and automation pipelines Why Teams Love Working With Me -T-Shaped Expertise - Deep in JavaScript, wide in AI systems and business strategy -Zero Black Boxes - Documented, maintainable code with 90%+ test coverage -Solution Multiplier - Every feature designed for extensibility and long-term scalability Let's build something that doesn't just work - but dominates.

Experience

• Senior Full-Stack Developer · Hike203-01-2022

  – Led development of wholesale commerce platform serving 10K+ merchants using Node.js and Next.js – Architected event-driven microservices that improved order processing speed by 40% – Spearheaded migration from JavaScript to TypeScript, reducing production bugs by 35% – Designed PostgreSQL schemas for high-volume inventory management (50M+ SKUs) – Implemented Redis caching layer that decreased API latency from 800ms → 120ms – Established CI/CD pipelines with GitHub Actions, enabling 50+ daily deployments – Mentored 4 junior engineers in system design and performance optimization

• Full-Stack Engineer · Scaled Agile, Inc.09-01-2017 – 03-01-2022

  – Built RESTful APIs handling 5M+ monthly requests for B2B marketplace – Developed real-time pricing engine using Node.js that processed 1M+ price updates/day – Optimized MySQL queries reducing checkout latency by 60% during peak loads – Created developer onboarding program that reduced ramp-up time by 3 weeks

• Frontend Developer · OneTrust10-01-2015 – 09-01-2017

  – Implemented Next.js SSR for e-commerce frontend, improving SEO traffic by 75% – Designed WebSocket service for live order tracking (5K concurrent connections) – Automated inventory reconciliation system that reduced accounting errors by 90% - Developed and integrated custom Shopify apps to enhance store functionality and streamline operations

• Junior Software Developer · Turing School of Software07-01-2013 – 10-01-2015

  – Developed and maintained Node.js API endpoints under senior guidance, supporting core platform functionality – Assisted in building Next.js frontend components using TypeScript, improving page load times by 25% – Supported database optimization efforts by writing efficient PostgreSQL queries for reporting features – Fixed 50+ minor bugs across the stack, gaining exposure to full-system debugging techniques

Education

• Nova Southeastern University (NSU)Bachelor of Technology, Computer Science

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