Senior Frontend Engineer — Web3 dApps UI & Smart Contracts

Placements24; Pretoria; Hybrid; ZAR 900,000 - 1,300,000; Full time

Benefits offered by this job

Medical aid

Performance bonus

Flexible hours

Relocation assistance

Professional development

Hackathon events

Job summary

Placements24 in Pretoria is seeking a Senior Frontend Engineer specializing in decentralized applications. You will craft intuitive UIs for blockchain-powered platforms, integrate with smart contracts, and optimize performance in a dynamic Web3 environment.

You will collaborate with backend, design, and product teams, work with React/Vue/Angular, JavaScript/TypeScript, and modern frontend stacks, and help shape the architecture of dApps while delivering user-centric experiences.

Qualifications

• Bachelor's degree in Computer Science, Web Development, or related field, or equivalent experience.
• 5+ years of frontend development experience.
• Proven experience with JavaScript/TypeScript and modern frameworks like React, Vue.js, or Angular.
• Strong understanding of state management libraries (Redux, Zustand) and CSS preprocessors.
• Experience integrating with blockchain networks using ethers.js or web3.js.
• Familiarity with smart contracts and the basics of blockchain technology.
• Understanding of UI/UX principles and best practices.
• Experience with version control systems (Git).
• Excellent problem-solving and debugging skills.
• Strong communication and teamwork abilities.
• Experience working in Pretoria, Gauteng is a plus.

Responsibilities

• Develop and maintain highly interactive and responsive user interfaces for dApps using modern frontend technologies.
• Integrate frontend applications with smart contracts and blockchain networks using web3 libraries.
• Collaborate with UI/UX designers to implement user-friendly and visually appealing interfaces.
• Optimize application performance, scalability, and user experience.
• Write clean, maintainable, and well-documented code.
• Participate in code reviews and provide constructive feedback to peers.
• Troubleshoot and debug frontend issues, ensuring a smooth user journey.
• Stay abreast of the latest trends and advancements in frontend development and Web3 technologies.
• Work closely with backend engineers and product managers to define features and technical requirements.
• Contribute to the overall technical architecture and strategic direction of frontend development.

Skills

JavaScript/TypeScript

React

Vue.js

Angular

Redux

Zustand

Web3

Ethers.js

Web3.js

Git

UI debugging

Education

Bachelor's degree in CS/IT or related field

Tools

Git

VS Code

Job description

Placements24 in Pretoria is seeking a Senior Frontend Engineer specializing in decentralized applications. You will craft intuitive UIs for blockchain-powered platforms, integrate with smart contracts, and optimize performance in a dynamic Web3 environment.

You will collaborate with backend, design, and product teams, work with React/Vue/Angular, JavaScript/TypeScript, and modern frontend stacks, and help shape the architecture of dApps while delivering user-centric experiences.