Founding Full-Stack Software Engineer-Durban

HyperionDev; Durban; On-site; ZAR 600,000 - 800,000; Full time

Job summary

A growing tech startup in Durban is seeking a Founding Full-Stack Software Engineer. In this role, you'll collaborate closely with the founding team to design and scale the HyperDev platform, integrating cutting-edge AI technologies. Ideal candidates will have deep proficiency in JavaScript and TypeScript, as well as strong backend experience with Node.js. This role offers significant ownership and the chance to shape a world-class developer product.

Qualifications

• Deep proficiency in JavaScript & TypeScript, including modern features.
• Strong experience with React and Remix frameworks.
• Solid backend experience with Node.js and modern build tools.

Responsibilities

• Design, build, and scale the core HyperDev platform.
• Collaborate with founders to define product direction.
• Integrate AI/LLM tooling to enhance developer interaction.

Skills

JavaScript

TypeScript

React

Remix

Node.js

Git / GitHub

AI / LLM APIs

Automated testing

Tools

Vite

pnpm

Docker

Job description

Job title: Founding Full-Stack Software Engineer - Durban

Job Location: KwaZulu-Natal, Durban Deadline: October 03, 2025

About the Role

• We are seeking a Founding Full-Stack Software Engineer to help us build HyperDev from the ground up. This is not a feature-factory role: you’ll work closely with the founders to make foundational decisions about our architecture, product direction, and engineering culture.
• You’ll take early concepts and help shape them into a world-class developer product, from the backend logic and API integrations to the frontend experience that developers interact with. This role is ideal for someone who thrives on ownership, wants to work at the cutting edge of AI, and is motivated by the opportunity to create lasting impact as part of a founding team.

Responsibilities

• Design, build, and scale the core HyperDev platform — from backend services to frontend UX.
• Collaborate directly with the founders to define product direction, technical choices, and long-term architecture.
• Integrate and experiment with cutting-edge AI / LLM tooling to transform how developers write and interact with code.
• Build interactive demos and proof-of-concepts that evolve into production-ready features.
• Establish engineering best practices (CI / CD, testing, code quality) from day one.
• Stay ahead of AI / ML and developer tooling advancements, bringing the best ideas into the product.

Requirements

Minimum :

• Deep proficiency in JavaScript & TypeScript, including modern features and advanced types.
• Strong experience with React and Remix frameworks.
• Solid backend experience with Node.js and modern build tools (Vite, pnpm).
• Familiarity with Git / GitHub workflows and CI / CD pipelines.
• Experience integrating third-party APIs, especially LLM APIs.
• Understanding of prompt engineering and AI agent interactions.
• Experience with automated testing and code quality tools (ESLint, Prettier, Vitest or similar).
• Ability to work independently in a fast-moving, full-stack development environment.

Preferred :

• Integration with AI / LLM SDKs (e.g. Vercel AI SDK, @ai-sdk / openai).
• Familiarity with Python for scripting and experimentation.
• Experience with Cloudflare Workers / Pages and related tooling.
• Knowledge of monorepo / workspace tools (Nx, Turborepo, pnpm workspaces).
• Deployment and DevOps experience (Docker, Coolify, environment variables).
• Advanced CSS and modern CSS-in-JS methodologies (UnoCSS, Tailwind).
• Packaging experience (Electron, Linux / Mac / Windows).
• Prior contributions to open source projects.
• Strong grasp of advanced LLM interaction principles (prompt engineering, model stacking).