Mid-Level Full Stack Engineer

Appsierra Group; Johannesburg; Hybrid; ZAR 400,000 - 540,000; Full time

Benefits offered by this job

Paid time off

Paid sick leave

Parental leave

Remote work flexibility

Flexible hours

Education and training

Job summary

Appsierra Group in Johannesburg, South Africa, is seeking a Mid-Level Full Stack Engineer. You will build features with React and Next.js, collaborate with a Laravel backend, and ensure robust frontend performance. The role is hybrid with two in-office days per week.

You will own code quality, participate in reviews, and contribute to end-to-end tests using Playwright, while leveraging AWS services like EC2, RDS, S3, and IAM.

Qualifications

• Strong experience with React and Next.js.
• Proficient TypeScript skills.
• Strong SSR and hydration understanding.
• Experience with frontend caching and performance considerations.
• Familiar with state management tools (Zustand/Redux/Context API).
• Experience shipping production frontend features and debugging browser/Node/SSR.

Responsibilities

• Build and ship production features using React and Next.js.
• Develop fast, reliable frontend interfaces.
• Work across the stack to deliver end-to-end features.
• Implement effective state management and architecture.
• Handle SSR, hydration, caching, and performance considerations.
• Collaborate with Laravel backend on API contracts.

Skills

React

Next.js

TypeScript

SSR

State management

Playwright

End-to-end testing

Git workflows

Linux command line

AWS

API contracts

Performance optimization

Browser debugging

Tools

Laravel

PHP

MySQL/MariaDB

Job description

Mid-Level Full Stack Engineer

Johannesburg, South Africa | Full-time | Mid-level | Hybrid
Office days: Monday & Friday | 2 days per week

About the Role

Build fast, reliable digital experiences and ship production features that make a real impact.

We are looking for a Mid-Level Full Stack Engineer to join a Development/TechOps team in Johannesburg. This role is ideal for an engineer who is strong on the frontend, comfortable working across the broader application stack, and experienced in taking production features from development through deployment.

You will build and ship production features using React and Next.js, collaborate closely with the Laravel backend team on API contracts, contribute to code reviews, and troubleshoot complex issues across the browser and Node/SSR environment.

This is a hands‑on engineering role with responsibility for delivering reliable, scalable solutions while contributing to the quality of the wider engineering team.

Key Responsibilities

Product Development

• Build and ship production features using React and Next.js.

• Develop fast, reliable, and maintainable frontend interfaces.

• Work across the application stack to deliver features end‑to‑end.

• Implement effective state management and application architecture.

• Work with server‑side rendering, hydration, caching, and related frontend performance considerations.

Backend & API Collaboration

• Collaborate closely with the Laravel backend team on API contracts.

• Ensure effective communication between frontend and backend systems.

• Contribute to the integration of frontend features with backend services.

Code Quality & Engineering Practices

• Review frontend pull requests from peers and junior engineers.

• Provide constructive technical feedback through code reviews.

• Follow established engineering and Git workflows.

• Contribute to maintaining reliable and maintainable production code.

Debugging & Reliability

• Investigate and resolve production issues across the browser and Node/SSR stack.

• Diagnose application, rendering, caching, and state‑management issues.

• Use appropriate development and testing tools to validate fixes.

• Support reliable production performance across the application.

Testing & Infrastructure

• Develop and maintain end‑to‑end tests using Playwright.

• Work with Linux command‑line tools as part of development and troubleshooting.

• Work with AWS services including EC2, RDS, S3, and IAM.

• Support application deployment and infrastructure requirements within the engineering environment.

Required Skills & Experience

• Strong experience with React and Next.js.

• Strong TypeScript skills.

• Practical understanding of server‑side rendering (SSR) and hydration.

• Experience with frontend caching and performance considerations.

• Strong understanding of state management using tools such as Zustand, Redux, or Context API.

• Experience building and shipping production frontend features.

• Experience debugging applications in the browser and Node/SSR environments.

• Experience with Playwright and end‑to‑end testing.

• Strong understanding of Git and modern software development workflows.

• Comfortable working with the Linux command line.

• Practical experience with AWS, particularly EC2, RDS, S3, and IAM.

• Ability to collaborate effectively with backend engineers on API contracts.

• Strong code‑review and peer‑collaboration skills.

Preferred Skills

• Laravel / PHP experience.

• MySQL or MariaDB experience.

• Experience with React Native or mobile development.

• Kotlin experience.

• Experience with BigQuery.

• Familiarity with PM2, Nginx, and Node process management.

Compensation

ZAR 400,000 – ZAR 540,000 per year

Benefits & Perks

• Paid time off

• Paid sick leave

• Parental leave

• Remote work flexibility

• Flexible hours

• Education and training

Role Details

Location: Johannesburg, South Africa
Employment Type: Full‑time
Level: Mid‑level
Work Arrangement: Hybrid
Office Days: Monday and Friday
Office Requirement: 2 days per week