I'm Jonathan Sanchez — a Lead Senior Software Engineer & Software Architect with 11+ years building scalable software across e‑commerce, LMS, ERP, B2B, publishing, hospitality, and aviation. I lead cross‑functional teams, ship to millions of users, and pair business‑aligned engineering with people‑centered leadership — boosting efficiency 30%+ and reducing costs 25%+ along the way.
Currently leading UI & Mobile engineering at Cypher Learning, building the next generation of an LMS platform serving millions of global users. Hands‑on 75% IC / 25% lead across React Native, Next.js, and Ruby on Rails — with deep AWS/GCP cloud experience and a growing AI/LLM practice (RAG, LangChain, Bedrock, Vertex AI).
Live demos, case studies, and tech breakdowns at jonathansanchez.dev →
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Lead UI & Mobile engineering for an LMS SaaS serving millions of users worldwide. Re‑architected the React Native release process — 45%+ savings in engineering time and operational costs.
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Akeneo PIM rollout + Next.js storefront. Cut enrichment time 50%, lifted online sales 60%, doubled SKU & attribute counts in 12 months.
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Product information management system synchronizing vendor data and mapping product fields for an agricultural supplies marketplace.
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Headless commerce for grow equipment, nutrients, LED lighting & agricultural supplies. Shopify Plus + Rails backend.
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Workforce‑management SaaS for the cannabis industry. Cloud‑native, scaled to $5M+ valuation as Principal Engineer / CTO.
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Took the company from zero mobile presence to a revenue‑generating multi‑app portfolio across iOS & Android.
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Sleep & focus sound mobile app — calm, ambient, cross‑platform with custom audio processing.
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Buy & sell pre‑owned and refurbished bikes, parts & equipment locally. Live on the App Store.
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Photo management mobile app featuring geolocation‑based favoriting and personalized album management.
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Bundle IQ (Interim CTO) · ICP Miami eCommerce ($500K → $3M) · Carnival Cruise SharePoint (7,000+ employees) · Boca Code instructor projects.
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Building production AI features end‑to‑end — retrieval pipelines, agentic workflows, and model‑agnostic abstractions across providers.
RAG LangChain OpenAI · GPT‑4o Claude 3.5 Sonnet Gemini 1.5 / 3 Vertex AI Agents AWS Bedrock PgVector Pinecone
Expo Fastlane TestFlight Detox Native Modules
DynamoDB Firestore Pinecone
EC2 S3 Lambda API Gateway CloudFront RDS DynamoDB SNS SQS SES ECS Cognito Bedrock CloudFormation CloudWatch Secrets Manager Route53
App Engine Cloud Run Cloud Build Cloud SQL Cloud Storage Vertex AI Secret Manager
AWS CodePipeline Cloud Build Serverless
DataDog Sentry New Relic ELK Elasticsearch Kibana LogStash
Playwright React Testing Library Mocha/Chai Detox
- 🎙️ Founder — Syntax Summit, South Florida SWE meetup
- 🤝 Founder — DevDive Peer Group, South Florida Tech Hub
- 🏆 Hackathon Judge & Co‑organizer — South Florida Tech Hub
- 🎤 Speaker — DevCon
- 🧑🤝🧑 Co‑organizer — FloridaJS
- 🧑🏫 Senior Instructor — Boca Code (mentored 150+ engineers across 12 cohorts; 275% enrollment growth)
- ⛪ Volunteer Engineer — Christ Fellowship · Calvary Chapel
In‑depth tutorials and engineering writeups — full archive at jonathansanchez.dev/blog.
- 🎬 Building a Swift Package to Burn Live Scoreboards into Recorded Sports Video — Apr 4, 2026
- 📦 WebView Doesn't Cache for Offline — So I Built a Swift Module and a Native Patch to Fix It — Apr 3, 2026
- 🚀 How to Deploy a Node Express API to AWS EC2 Amazon Linux 2 — Sep 4, 2024
- 🟦 How to Create a Simple Node API with TypeScript — Jul 17, 2023
- 🔒 How to Apply SSL for HTTPS on a WebApp Hosted in AWS S3 Bucket — Dec 13, 2022
- 🪪 How to Use JWT in Node.js Express API with Password Hashing & MongoDB — Oct 18, 2022
- 🔐 How to Apply SSL for HTTPS to Node Express API in AWS EC2 — Sep 19, 2022
- ⛅ How to Deploy Node Express API to Heroku — Aug 8, 2022
- ▲ How to Deploy Node Express API to Vercel Serverless Functions — Jul 7, 2022
- 🐧 How to Deploy Node Express API to an AWS EC2 Ubuntu Instance — Aug 12, 2021
- 🔥 Publish Your React App to FREE Firebase Hosting — Jul 20, 2021
- 🔑 How to Hash Password in React App Before Sending it to the API — Jun 14, 2021
When I'm not shipping code, you can find me:
🥁 Drumming for a Duran Duran tribute band · 🏐 Volleyball dad · 🪚 Woodworking · 🐶 Hanging with Cielo (my Maltese) · 🍽️ Restaurant co‑owner · 🇧🇷 Learning Portuguese
