jTech

Software that holds up at every layer.

jTech designs and builds the whole stack: back ends that scale under real traffic, fast websites, iOS and Android apps, and AI agents that do actual work inside your business.

Start a project See what we build
1998 Shipping production software since then.
  1. AI agentsLLMs, tool use, automation
  2. Mobile appsSwift, React Native, Expo
  3. Front endSites, dashboards, web apps
  4. Back endGo, Node.js, ArangoDB
  5. CloudAWS, Cloudflare, CDN

One team, top to bottom. Pick a layer to jump to it.

What we build

Most projects touch several layers at once. Because we build all of them, the API, the app and the agent are designed to work together from day one.

AI agents

Agents that read, decide and act: they pull data from your systems, call your APIs, draft content, and hand off to a person when they should.

  • Customer support and lead-qualification agents
  • Back-office automation for content, reporting and data entry
  • Retrieval over your own documents and databases
  • Logging, guardrails and evaluation so you can trust the output
  • Claude
  • OpenAI
  • Tool calling
  • RAG
  • MCP
  • Evals

Mobile apps

iOS and Android apps that feel native and are built to ship: subscriptions, push notifications, offline support and App Store submission included.

  • Native iOS in Swift, or cross-platform with React Native and Expo
  • In-app purchases and subscriptions
  • Shared back end with your website, so data stays in sync
  • Swift
  • SwiftUI
  • React Native
  • Expo
  • StoreKit
  • Push

Front end

Websites and web apps that load fast on any device and are easy for your team to work with afterward.

  • Marketing sites and landing pages built for conversion
  • Admin dashboards and reporting with sorting, filtering and export
  • Interactive widgets and embeds that run on third-party pages
  • SEO and Core Web Vitals handled from the start
  • HTML & CSS
  • JavaScript
  • TypeScript
  • React
  • Responsive
  • SEO

Back end

APIs, data pipelines and services designed for high request volumes. This is where we have spent most of our careers, including ad-tech and search platforms where every millisecond counts.

  • REST and real-time APIs in Go and Node.js
  • Database design for graph, document and relational data
  • Queues, background jobs and third-party integrations
  • Go
  • Fiber
  • Node.js
  • ArangoDB
  • MongoDB
  • PostgreSQL

Cloud

Infrastructure that stays up and stays affordable. We set up hosting, CDN, storage and monitoring, and document it so you are never locked in.

  • AWS and Cloudflare architecture and migration
  • Edge caching and image delivery
  • Monitoring, alerts and backups
  • AWS EC2
  • S3
  • CloudFront
  • DocumentDB
  • Cloudflare Workers
  • R2

How we work

Short feedback loops and working software early. You see progress every week, not at the end.

  1. Scope

    A call to understand the goal, then a written plan with milestones, stack choices and a clear estimate.

  2. Build

    Weekly working builds you can click through, so changes happen while they are still cheap.

  3. Launch

    Deployment, monitoring and handoff documentation. Your code and accounts are always yours.

  4. Support

    Ongoing maintenance, new features and scaling help when traffic grows.

A small, senior team

You work directly with the engineer building your product.

jTech is a U.S. software firm based on Daniel Island, South Carolina. We have been building for the web since 1998, from high-traffic ad-tech and search platforms to reporting systems, consumer apps and, now, AI agents.

That range matters. When one team understands the database, the API, the app and the model, problems get solved where they actually live instead of being passed between vendors.

  • Building since1998
  • Based inDaniel Island, SC
  • Core stackGo, ArangoDB, AWS
  • PlatformsWeb, iOS, Android

Have a project in mind?

Send a few lines about what you are building and where you are stuck. We reply within one business day.

Email jeff@jtechsoftware.com
jTech, LLC
186 Seven Farms Dr, Ste F 191
Daniel Island, SC 29492
(949) 485-5286