Full-Stack Engineer; React​/TypeScript, into .NET

Rosebank, Johannesburg

• Hybrid after onboarding
• Permanent

Our client runs a live retail-media and connectivity platform used every day by consumers and small-business owners across South Africa's informal-trade market, with leading consumer brands buying media and insights on top of the data. Product development is moving in-house and this is one of the first two engineering hires.

• Three live React apps: a consumer-facing portal, an admin and campaign portal, and a client reporting app
• A new owner portal built as a PWA for low-end Android phones and patchy connectivity
• The data pipelines behind the product (event data, SQL Server, Postgres)
• Smaller edge services (Cloudflare Workers, Supabase apps)
• Growing into the .NET API alongside a senior engineer

• A very strong front end:
  React and Type Script in production
• Backend experience in Node/JavaScript, Type Script, C#, Java or Kotlin, with a production ORM and cloud deployment, and a willingness to learn .NET. .NET experience is a strong plus
• Comfort with SQL and scripting for data work (Python or Type Script)
• A full-stack mindset, self-direction and curiosity about the product and its users

Nice to have: PWA or offline-first work, Click House / Big Query / Snowflake, event-driven patterns, daily use of AI coding tools.

• Real breadth: frontends, data and edge services on a live product
• A planned growth path into .NET with a senior engineer alongside you
• Modern stack:
  React, Vite, Tailwind, shadcn/ui, Cloudflare Workers, Supabase, Click House

office-based in Rosebank for the first three months while you learn the platform and the team, then hybrid: three days in the office, two from home.

market-related, depending on experience.