Blockchain Developer - Full Stack

Placements24; Soweto; Hybrid; ZAR 600,000 - 900,000; Full time

Benefits offered by this job

Competitive salary

Health insurance

Hybrid work model

Professional development

Paid time off

Retirement plan

Modern development tools

Job summary

Placements24 in Soweto, Gauteng, ZA is seeking a dynamic Full Stack Blockchain Developer to join a fast-growing startup in the crypto space. You will work on both blockchain components (smart contracts, backend integration) and frontend interfaces for decentralized applications.

The role offers a hybrid work model, competitive salary, health insurance, and opportunities to grow alongside innovative projects in a supportive team.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 3+ years of full-stack development experience with 1-2 years in blockchain tech.
• Proficiency with HTML, CSS, JavaScript and modern front-end frameworks.
• Experience writing Solidity and understanding EVM.
• Familiarity with web3 libraries and blockchain interaction tools.
• Experience with backend languages (Node.js, Python, Go) and RESTful APIs.
• Knowledge of SQL/NoSQL databases.
• Strong problem-solving and collaboration skills.
• Portfolio of relevant projects is advantageous.

Responsibilities

• Develop and maintain both front-end and back-end components of dApps.
• Write, test, and deploy secure smart contracts in Solidity.
• Design UIs with modern frameworks (React, Vue.js, Angular).
• Integrate front-ends with blockchains using web3 libraries.
• Develop server-side logic and APIs to support dApp functionality.
• Collaborate with designers and product managers to implement features.
• Optimize applications for speed, scalability, and security.
• Conduct code reviews, testing, and debugging across the stack.
• Stay updated on blockchain trends and evolving technologies.
• Contribute to architectural decisions and development lifecycle.

Skills

Full-stack development

Blockchain technologies

Solidity

REST APIs

Web3 libraries

Frontend frameworks

Education

Bachelor's degree in Computer Science/Engineering

Tools

Solidity

Web3.js

Ethers.js

Node.js

Job description

About the Role

A dynamic startup in the crypto and blockchain space is looking for a talented Full Stack Blockchain Developer to join their growing team in Soweto, Gauteng, ZA . This role requires a versatile engineer capable of working on both the blockchain (smart contracts, backend integration) and front-end development aspects of decentralized applications (dApps). You will play a key role in building user-friendly interfaces, developing robust backend logic, and ensuring seamless integration with blockchain networks. The ideal candidate has a passion for decentralized technologies, strong full-stack development skills, and a desire to contribute to innovative projects. This is an exciting opportunity to be part of a fast-paced, evolving industry and to make a tangible impact on the development of dApps that empower users. We are seeking individuals who are eager to learn and grow within the blockchain ecosystem. Your contributions will be vital in bringing our client's vision to life through intuitive and powerful decentralized applications.

Key Responsibilities

• Develop and maintain both front-end and back-end components of decentralized applications (dApps).
• Write, test, and deploy secure and efficient smart contracts using languages like Solidity.
• Design and implement user interfaces using modern front-end frameworks (e.g., React, Vue.js, Angular).
• Integrate front-end applications with blockchain networks using web3 libraries (e.g., Web3.js, Ethers.js).
• Develop server-side logic and APIs to support dApp functionality.
• Collaborate with designers and product managers to translate requirements into functional features.
• Optimize applications for maximum speed, scalability, and security.
• Conduct code reviews, testing, and debugging across the full stack.
• Stay up-to-date with the latest trends and technologies in blockchain development and front-end frameworks.
• Troubleshoot and resolve issues across the entire application stack.
• Participate in architectural discussions and contribute to technical decisions.
• Ensure a seamless user experience and intuitive application design.
• Contribute to the overall development lifecycle from conception to deployment.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 3+ years of experience in full-stack development, with at least 1-2 years focused on blockchain technologies.
• Proficiency in front-end technologies such as HTML, CSS, JavaScript, and modern frameworks (React, Vue.js, or Angular).
• Experience developing smart contracts with Solidity and understanding of EVM.
• Familiarity with web3 libraries and tools for interacting with blockchains.
• Experience with backend development languages (e.g., Node.js, Python, Go) and frameworks.
• Knowledge of RESTful APIs and database management (SQL/NoSQL).
• Understanding of blockchain fundamentals, including consensus mechanisms and distributed ledgers.
• Strong problem-solving and analytical skills.
• Good communication and teamwork abilities.
• Experience with Git version control.
• Familiarity with decentralized finance (DeFi) concepts is a plus.
• Portfolio showcasing relevant projects is highly advantageous.

Benefits

• Our client offers a competitive salary, potential bonuses, and opportunities for growth within a rapidly expanding company.
• Comprehensive health insurance coverage is provided.
• We offer a flexible hybrid work model, balancing in-office collaboration with remote flexibility.
• Employees benefit from professional development opportunities, including training and workshops relevant to the crypto and blockchain industry.
• You will work on exciting and impactful projects in Soweto, Gauteng, ZA .
• Enjoy a generous paid time off policy and a supportive team culture.
• Access to modern development tools and technologies is standard.
• Opportunities for career advancement and skill development are significant.
• Regular team social events foster a strong sense of community.
• Contribution to building the future of decentralized applications is a core part of the role.
• Retirement savings plan available.