Full Stack JavaScript Engineer (React / Next.js / Expo / Supabase)

The Legends Agency; Cape Town; On-site; ZAR 300 000 - 400 000; Full time

Job summary

A London-based startup is looking for a full-stack developer to join their team. In this role, you will work directly with the CTO to build and ship both mobile and web applications. You will be involved in all stages of the product lifecycle, from concept to launch, in a creative and ambitious environment. Ideal candidates will have 2+ years of experience in full-stack development, strong UI/UX instincts, and the ability to work in startup-style environments. This role offers an exciting opportunity to shape innovative products within the creator economy.

Qualifications

• 2+ years of experience in full-stack development.
• Proven track record of shipping real apps.
• Strong UI/UX instincts and ability to execute fast, clean code.
• Comfortable working in fast-paced, startup environments.

Responsibilities

• Build and ship mobile and web applications end-to-end.
• Design responsive user interfaces and smooth user experiences.
• Integrate databases, authentication, APIs, and AI models.
• Work closely with designers and founders to turn concepts into products.

Skills

Full-stack development

React

Next.js

Vercel

Expo

Supabase

Job description

About Our Client

This London-based startup partners with leading influencers to co-create high-impact digital products. By combining the creative power of content creators with a top-tier tech and growth team, they launch fast-moving, startup-style products that reach millions. The culture is creative, ambitious, and deeply rooted in the fast-evolving creator economy.

As the first core developer hire, you'll work directly with the CTO who's built multiple viral products with millions of users on shipping clean, fast, full-stack code across a range of new apps. You'll be deeply involved in taking ideas from concept to launch, shaping product experiences with real users, and iterating fast. This role gives you the chance to lead across the entire product lifecycle in a highly collaborative environment.

Key Responsibilities

• Build and ship mobile and web applications end-to-end
• Design responsive, pixel-perfect user interfaces and smooth user experiences
• Integrate databases, authentication, APIs, and AI models using Supabase
• Work closely with designers and founders to turn concepts into polished products
• Deploy and manage apps via Vercel, focusing on speed and performance
• Create reusable components and maintain code quality across projects
• Troubleshoot issues, test thoroughly, and iterate quickly

About You

• 2+ years of experience in full-stack development (React, Next.js, Vercel, Expo, Supabase)
• Proven track record of shipping real apps (portfolio or GitHub links welcome)
• Strong UI/UX instincts and ability to execute fast, clean code
• Comfortable working in fast-paced, startup-style environments
• Able to take ownership of features and solve problems independently
• Clear communicator and highly organized
• Passionate about the creator economy, startups, and building from scratch
• Bonus: Experience building for creators, social platforms, or consumer products