Hi, I'm Jacob
Full-Stack Developer
I build fast, lightweight web products and ship them end to end.
Four years of production React, Next.js, Node and PHP for enterprise clients, plus two SaaS products of my own with paying customers. Production‑ready systems that ship fast and stay fast.
Based in Tel Aviv · Available globally
Featured Work
SaaS & products I've shipped
Selected work from products I've designed, built, and launched outside of traditional client work.
SaaS
GhostChat
A privacy‑first, ultra‑light chat widget engineered to be up to 20× smaller and 3–8× faster than legacy tools like Intercom or Drift. The chat widget on this site is GhostChat. Its AI assistant answers from each site’s own knowledge base.
SaaS
Gmailytics
Google CASA Tier 2 certified SaaS web app that scans your inbox and lets you bulk‑unsubscribe from unwanted emails in one click.
Plugin
KaspaWoo
Production‑ready Kaspa crypto payment gateway for WooCommerce. Open source — plugin on GitHub, powered by my kaspa‑simple‑wallet npm package.
Also building
Hummus Trail
ContentBackpacker guides for the Israeli post‑army "hummus trail" — 14+ destination guides across India, Southeast Asia, and South America. SEO‑first content site with affiliate monetization.
hummustrail.com
Abroad Bible
ContentThe study‑abroad guide students pass down — city guides for London, Paris, Barcelona, and beyond, with budget and weekend‑travel playbooks.
theabroadbible.comOpen Source
Packages I publish and maintain
Code I've released for anyone to use, under MIT. Publishing means writing documentation, handling issues, and living with your own API decisions — which is a useful discipline.
ghostchat-agent
npmRun your own AI agent on GhostChat — your model, your infrastructure, your data. Supports Anthropic, OpenAI, and local Ollama models behind one webhook, with a setup wizard and a security model built for untrusted public input.
npm · MITkaspa-simple-wallet
npmWatch-only Kaspa address derivation from a KPUB/XPUB, Kaspium compatible. Powers the KaspaWoo gateway so merchants can accept crypto without their store ever holding a private key.
npm · MITKaspa Payments for WooCommerce
PluginA complete, production cryptocurrency payment gateway for WooCommerce — non-custodial, open source, and written properly against the WooCommerce gateway API.
GitHubghostchat-widget
SDKThe ~15KB embeddable chat SDK behind GhostChat — up to 20× smaller than legacy widgets. It's the one running on this page right now.
GitHubWork With Me
I build the product and get it traffic
Available for client work alongside my own products. Small, well-defined jobs start at $500, about a week, half upfront. Larger builds are quoted. Most teams hire a developer to build the thing, then hire someone else to make people find it — I do both.
Custom AI integration
LLM features that survive real traffic: support agents, grounded answers over your own content, and cost-controlled model routing. Running in production on my own SaaS today.
AI integration →Payment integrations
Stripe billing, Meshulam, custom WooCommerce gateways, crypto. One system I built processes $1M+ a year.
Payment integrations →WordPress plugins & blocks
Gutenberg blocks, plugins, and themes built like software — not page-builder bloat. My own plugin is live on WordPress.org.
Work with me →Web apps & integrations
Frontend and backend by one person. React, Next.js, Node, TypeScript, PHP, APIs, webhooks, migrations, real-time.
Work with me →Experience
Professional work
Full‑stack roles spanning SaaS platforms, enterprise integrations, and large‑scale WordPress ecosystems.
One Digital
Full Stack Developer
- Built end‑to‑end Strapi payment system with Meshulam SDK, processing $1M+/year in transaction volume
- 30+ custom React‑based Gutenberg blocks; automated ACF block generator cutting dev time by 80%
- Dockerized Puppeteer on Azure Functions for automated PDF invoice generation
- Led Strapi‑to‑Azure workflow design across frontend, backend, and DevOps pipelines
- WPML multilingual architecture with RTL/LTR support for enterprise clients including Dimri, Sonol, and Rishumit
Hertz Furniture
Full Stack Developer
- Zero data loss, zero downtime CRM migration of 100K+ records to Salesforce
- LiveChat bots + Salesforce webhooks cutting response time from hours to under 10 minutes
- Microsoft OneDrive integration via Graph API, reducing storage costs by 40%
- SignNow e‑signatures integration, 90% faster contract turnaround
Elphi (SaaS)
Full Stack Developer · Contract
- Migrated Firebase to PostgreSQL, improving performance and analytical stability
- Added GraphQL subscriptions for real‑time UI updates
Education
Academic background
DevMountain
Full Stack Web Development Bootcamp
- Most Advanced Project award
University of Maryland
B.Sc. Information Systems
- 3.5 GPA
- Kathryn Stewart Fellowship — $5,000 entrepreneurship award
- Capital One grant ($1,000) for Trekit travel app
Testimonials
What managers I've worked with say
"I had the pleasure of working with Mr. Orbach for about a year. Jacob takes initiative and ownership, consistently identifying problems and solving them without being asked. He is a full-stack developer, comfortable building custom React blocks, integrating backend systems, and handling deployment automation. He reliably takes on complex or unfinished work and delivers results, with a strong focus on building maintainable, reusable systems. He excels at solving problems under pressure, including production issues."
"Jacob joined our company as a junior developer, but was eager to advance and learn new things, and within a year he has successfully completed several significant projects such as our intranet-Salesforce integration using Salesforce API, Microsoft Sharepoint cloud file storage and retrieval using Microsoft Graph and adding e-signature capabilities to our PDF quotes using SignNow API. Our company relies on the systems he built for our day to day business operations. Jacob is a cheerful and hard working individual, fast learner and a pleasure to work with. I would gladly recommend Jacob to any team."
Tech Stack
Technical strengths
Frontend
React, Next.js, Vite, WordPress/Gutenberg, custom block development, TypeScript, Tailwind, PWA flows.
Backend
Node.js, Strapi, PHP, WordPress plugin development, MySQL, Supabase.
Cloud & DevOps
Cloudflare Workers, Vercel, Azure Functions, Git, CI/CD pipelines.
Deep capabilities
Core Mindset
Philosophy
Ship fast. Measure honestly. Cut complexity.
I build products the way I like to use them: lightweight, clean, fast, and useful from the first interaction. Everything else is secondary.
Let's build something great
Whether you've got a product to build, an AI feature to ship, a site that isn't ranking, or a founding engineer role to fill — I'd like to hear about it. Here's how I work with clients.