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
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