Senior MERN Stack Developer

IQ Business Group; Sandton; On-site; ZAR 900,000 - 1,300,000; Full time

Job summary

IQ Business Group is seeking an experienced Senior MERN Stack Software Developer for a 12-month contract. The role focuses on building scalable web applications using MongoDB, Express.js, React.js, and Node.js, with emphasis on performance and reliability.

Must be onsite in Sandton and lead development teams. Ideal candidates will have strong JavaScript (ES6+) and TypeScript experience, RESTful API design, and a track record of delivering robust microservices.

Qualifications

• 7+ years of software development experience.
• Strong proficiency in MongoDB, Express.js, React.js, and Node.js.

Responsibilities

• Design, develop, and maintain full-stack web applications using the MERN stack.
• Build robust RESTful APIs and microservices using Node.js and Express.js.
• Develop responsive front-end interfaces using React.js.
• Work with MongoDB to design schemas, optimize queries, and manage data effectively.
• Collaborate with product owners, designers, and QA across teams.
• Write clean, maintainable, and well-documented code.
• Mentor junior developers and participate in code reviews.
• Troubleshoot and enhance application performance.
• Ensure application security, scalability, and reliability.

Skills

REST APIs

ES6+ JavaScript

Git

TypeScript

Tools

MongoDB

Express.js

React.js

Node.js

Job description

iqx the Technology Division of iqbusiness is seeking an experienced Senior MERN Stack Software Developer to join our team on a 12-month contract. The ideal candidate will have strong expertise in MongoDB, Express.js, React.js, and Node.js, with a proven track record of building scalable, high-performance web applications. This is a fully onsite role based in Sandton.

Key Responsibilities

• Design, develop, and maintain full-stack web applications using the MERN stack
• Build robust RESTful APIs and microservices using Node.js and Express.js
• Develop responsive, user-friendly front-end interfaces using React.js
• Work with MongoDB to design schemas, optimize queries, and manage data effectively
• Collaborate with cross-functional teams including product owners, designers, and QA
• Write clean, maintainable, and well-documented code
• Participate in code reviews and mentor junior developers
• Troubleshoot, debug, and enhance application performance
• Ensure application security, scalability, and reliability

Required Skills & Experience

• 7+ years of software development experience
• Strong proficiency in: MongoDB
• Express.js
• React.js
• Node.js
• Solid understanding of JavaScript (ES6+) and TypeScript (advantageous)
• Experience with RESTful API development and integration
• Familiarity with version control tools such as Git
• Experience with modern front-end build tools and frameworks
• Strong problem-solving and analytical skills