Software engineering that holds up in production.

Quantic Systems is a Cape Town consultancy led by Mughees Khan, with seven years of production engineering across retail, banking, and developer tools.

Experience fromBash (TFG)PowerSync (JourneyApps)Standard Bank (via Entelect)Old Mutual (via Entelect)

What I build

Mobile Engineering

The core specialisation. Flutter apps for phones, web, handhelds, and point-of-sale hardware, plus native iOS and Android. Offline-first data, payments, and deep device integrations, built to run reliably on whatever hardware your business depends on.

Backend & API Systems

NestJS gateway layers, GoLang and Node.js microservices, and serverless infrastructure on AWS and Cloudflare. API design and data layers that stay understandable as they grow.

SDK Development

Client SDKs across Flutter, React Native, Web, and Kotlin Multiplatform. Sync engines, payment integrations, and analytics frameworks that other developers build on.

Web Applications

Modern web applications with React and TypeScript. Performance-first, accessible, deployed to the edge.

Technical Consulting

Architecture reviews, engineering standards, and AI-assisted development workflows, from speccing through agentic coding to integration testing. Helping teams ship better software, not just more software.

Selected work

Career engagements behind the practice: shipped in production, at scale, for businesses that could not afford downtime.

Bash (TFG)

Senior engineer, storetech

Flutter · NestJS · GoLang

Store systems running in over 2,000 TFG stores nationwide, on handheld devices and point-of-sale hardware. The stack, owned end to end: Flutter mobile and web apps at the front, a NestJS gateway layer, and GoLang microservices behind it.

Engineering here is AI-assisted throughout: speccing new features, agentic coding workflows, and automated integration testing.

PowerSync (JourneyApps)

SDK engineer

Flutter · React Native · Web · Kotlin Multiplatform

Client SDKs for a sync engine that keeps backend databases and on-device SQLite in step. Maintained and improved the SDKs across all four platforms, including optimizing the native PowerSync Flutter plugin.

Beyond the code: technical proposals that shaped new solutions, and published writing on local-first storage.

Old Mutual

Consulting via Entelect

Smego, an SMME platform for funding, invoicing, and business management. Flutter, on mobile and web.

Standard Bank

Consulting via Entelect

Business banking on the Backbase platform, built natively for iOS and Android.

Led by a working engineer

Quantic Systems is the independent practice of Mughees Khan, a software engineer based in Cape Town, South Africa, with seven years of production experience across retail, fintech, insurance, and developer tools.

That experience runs from SDKs used by thousands of developers to store systems deployed on thousands of devices. When you work with Quantic Systems, that is who does the work. No handoffs, no juniors, no account managers.

BEngSc, University of the WitwatersrandAWS Certified Cloud Practitioner

How an engagement works

  1. 1

    Scope

    A short discovery of goals and constraints, ending in a fixed proposal with timelines you can hold me to.

  2. 2

    Build

    Weekly demos of working software, honest progress reports, and decisions documented as they are made.

  3. 3

    Ship

    Deployment, documentation, and handover, with support after launch rather than an invoice and a goodbye.

Technologies

Mobile

Flutter · Dart · Swift · Kotlin · React Native

Web

React · TypeScript · Svelte · Tailwind CSS

Backend

Node.js · NestJS · GoLang · Java

Cloud & Data

AWS · Cloudflare · PostgreSQL · SQLite · SQL

Have a project in mind?

Tell me what you’re building and where you’re stuck. You’ll get a reply from me, not a sales team, within one business day.