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Senior Software Developer (Web3)

  • Johannesburg Remote
  • Salary: Market Related
  • Job Type: Contract
  • Sectors: IT
  • Reference: 167155

Apply before Mar 22 2026 | 61 Days left

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Vacancy Details

Employer: iqbusiness South Africa

iqx the Technology Division of iqbusiness is seeking a Senior Software Developer with strong Web3 and blockchain experience to design, build, and scale decentralized and web-based applications. The ideal candidate is a hands-on engineer with deep technical expertise, a passion for emerging technologies, and the ability to deliver high-quality solutions in a fast-paced environment.

This role requires close collaboration with product, architecture, and security teams to develop secure, scalable, and user-centric platforms leveraging blockchain technologies.

Key Responsibilities

  • Design, develop, and maintain high-performance Web3 and full-stack applications

  • Build and deploy smart contracts and decentralized applications (dApps)

  • Integrate blockchain solutions with traditional web platforms and APIs

  • Ensure security, scalability, and performance best practices across all solutions

  • Conduct code reviews, mentor junior developers, and contribute to engineering best practices

  • Collaborate with cross-functional teams to translate business requirements into technical solutions

  • Stay current with emerging Web3 trends, protocols, and tools

Required Skills & Experience

  • Senior-level software development experience (7+ years preferred)

  • Strong experience in Web3 / Blockchain development

  • Proficiency in Solidity and smart contract development

  • Experience with Ethereum, Layer 2 solutions, or other blockchain platforms

  • Strong programming skills in JavaScript / TypeScript, Node.js, or similar

  • Experience building and consuming REST and/or GraphQL APIs

  • Solid understanding of cryptography, security, and decentralized architectures

  • Experience with cloud platforms and CI/CD pipelines

  • Ability to work independently and drive technical decisions.

Please Note:
As all iqbusiness roles require honesty in the handling of or access to cash, finances, financial systems, or confidential information; our recruitment process requires that the following background checks be completed: credit, criminal, ID, and qualification verification.

iqbusiness is committed to sustainable growth and transformation, we embrace diversity and employ previously disadvantaged individuals


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Opportunity

IQbusiness has also given me the opportunity to be involved in exciting initiatives such as B-Corp and the Women’s Chapter Network which allows me to find meaning in my work. Working under good leadership and a supportive team at IQbusiness really makes me enjoy coming to work every day.

Sheneez Sigamoney
RAS – Senior Associate – Sustainability

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© Careers24. All rights reserved.

About Careers24.com

  • Careers24 is a leading South African job portal that assists jobseekers from all sectors and experience levels to find and apply for vacancies from hundreds of South Africa’s leading companies. With over a million visitors a month, we are one of the most popular destinations to find employment online in South Africa.

    Our mission is to become the destination where every candidate can find an ideal job and where every company can find the perfect candidate. We are a proud member of the Media24 family and part of the Naspers group of companies.

Company

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  • Advertise With Us

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