Full Stack Engineer

Kloofx; Gauteng; Remote; ZAR 300 000 - 400 000; Part time

Job summary

A South African tech firm is seeking a Senior Full-Stack Engineer specializing in Next.js for a freelance 3-month contract. The role involves building and optimizing features, managing API integrations, and collaborating with teams to deliver scalable software. The ideal candidate has over 4 years of experience, strong TypeScript skills, and a focus on UI/UX consistency. This remote position offers flexible hours and the potential for a full-time role based on performance.

Qualifications

• 4+ years of full-stack development experience, with at least 2 years in Next.js.
• Strong command of TypeScript and component-based architecture.
• Experience designing and maintaining Prisma schemas and PostgreSQL databases.

Responsibilities

• Build, maintain, and optimize features in the Next.js application.
• Implement and manage API integrations with third-party services.
• Collaborate across design, product, and backend teams to deliver robust solutions.

Skills

Next.js

TypeScript

API development

PostgreSQL

Tailwind CSS

Tools

GitHub

Vercel

Job description

Senior Full-Stack Engineer(Next.js) — Freelance (3-Month Contract, Potential Full-Time)

Location : Remote (South Africa)

Type : Freelance (Approx. 3 months)

Potential : Transition to Full-Time

IMPORTANT — SCREENING STEP REQUIRED

ALL APPLICANTS WILL BE SCREENED THROUGH A ONE-WAY VIDEO INTERVIEW.

APPLICATIONS WITHOUT A COMPLETED VIDEO INTERVIEW WILL NOT BE CONSIDERED.

About Us

At KloofX, we provide opportunities for talented South Africans to work with our team servicing international companies with everything from admin to sales and development.

About the Role

We're looking for a Senior Full-Stack Engineer with deep expertise in Next.js and modern TypeScript tooling to help our client build and scale their product over the next few months.

This is a contract position with the potential to grow into a full-time role based on performance and fit.

You'll be working closely with the core product and engineering team to deliver high-quality, scalable, and maintainable software — with a focus at front-end polish, backend performance, and smooth API integrations.

What You'll Do

Build, maintain, and optimize features in the Next.js application.

Implement and manage API integrations with third-party services.

Design and evolve data models using Prisma and PostgreSQL.

Collaborate across design, product, and backend teams to deliver robust, end-to-end solutions.

Ensure a great developer and user experience using tRPC, TypeScript, and Tailwind CSS.

Write clean, maintainable, and well-tested code following modern best practices.

Contribute ideas to improve architecture, performance, and workflow automation.

Frontend and Development Tools

Frontend : Next.js, React, TypeScript, Tailwind CSS

Dev Tools : GitHub, Vercel (or similar), API integration frameworks

What We're Looking For

4+ years of full-stack development experience, with at least 2 years in Next.js.

Strong command of TypeScript and component-based architecture.

Experience designing and maintaining Prisma schemas and PostgreSQL databases.

Proven track record building and consuming APIs (REST or GraphQL).

Deep understanding of tRPC and its role in type-safe client–server communication.

Excellent attention to detail, especially in UI / UX consistency using Tailwind CSS.

Strong communication skills and ability to work independently in a remote setup.

Bonus Skills

Experience deploying and scaling apps with Vercel or similar platforms.

Familiarity with CI / CD, testing frameworks, and code quality tools.

Previous freelance or startup experience.

Duration : ~3 months (with opportunity for full-time hire)

Engagement : Remote, flexible hours

Start Date : Immediate

Seniority level

Mid-Senior level

Employment type

Contract

Job function

Engineering and Information Technology

Outsourcing and Offshoring Consulting