Senior Blockchain Developer - Smart Contracts & dApps

Placements24; United States; Hybrid; USD 61,000 - 109,000; Full time

Benefits offered by this job

Competitive remuneration package

Health benefits

Professional development opportunities

Stimulating tech environment

Job summary

Placements24 is assisting a leading DeFi innovator in recruiting a Senior Blockchain Developer for a Midrand, Gauteng team. The role focuses on secure contract coding, scalable dApps, and shaping decentralized architectures.

The candidate will work across Ethereum-compatible platforms, perform security-focused audits, and collaborate with product and design to deliver robust crypto solutions.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field or equivalent experience.
• 5+ years of experience as a Blockchain Developer or Smart Contract Engineer.
• Proficiency in Solidity, Vyper, or Rust.
• Strong understanding of blockchain architecture, consensus, cryptography.
• Experience with Truffle, Hardhat, Ganache; web3 libraries and Git.

Responsibilities

• Design, develop, and deploy secure, scalable smart contracts on Ethereum, BSC, Polygon.
• Develop and maintain dApps with integration to smart contracts.
• Conduct code reviews, audits, and tests for security and performance.
• Collaborate with product managers and engineers to translate requirements into blockchain features.
• Stay updated on blockchain tech and cryptography advances.
• Troubleshoot and debug complex blockchain issues.
• Contribute to technical strategy and architecture of blockchain initiatives.

Skills

Smart contract development

Blockchain architecture

Cryptography

Team collaboration

Education

Bachelor's degree in Computer Science or related field

Tools

Solidity

Vyper

Rust

Truffle

Hardhat

Ganache

web3.js

ethers.js

Git

Job description

About the Role

Our client, a leading innovator in the decentralized finance (DeFi) space, is seeking a highly skilled and motivated Senior Blockchain Developer to join their dynamic team in Midrand, Gauteng . This role offers a unique opportunity to work on cutting-edge blockchain technologies, develop secure and scalable smart contracts, and contribute to the architecture of decentralized applications (dApps). You will be instrumental in shaping the future of digital assets and decentralized systems. The ideal candidate possesses a deep understanding of blockchain principles, extensive experience with smart contract development, and a passion for pushing the boundaries of what's possible in the crypto world. This is a pivotal role where your expertise will directly influence product development and strategic direction.

Key Responsibilities

• Design, develop, and deploy secure, efficient, and scalable smart contracts on various blockchain platforms (e.g., Ethereum, Binance Smart Chain, Polygon).
• Develop and maintain decentralized applications (dApps), ensuring seamless integration with smart contracts.
• Conduct thorough code reviews, audits, and testing to ensure the security, performance, and reliability of blockchain solutions.
• Collaborate with product managers, designers, and other engineers to translate business requirements into technical specifications and blockchain functionalities.
• Stay abreast of the latest advancements in blockchain technology, cryptography, and consensus mechanisms.
• Troubleshoot and debug complex issues within the blockchain ecosystem.
• Contribute to the overall technical strategy and architecture of our client's blockchain initiatives.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Proven experience (5+ years) as a Blockchain Developer or Smart Contract Engineer.
• Proficiency in smart contract programming languages such as Solidity, Vyper, or Rust.
• Strong understanding of blockchain architecture, consensus algorithms, and cryptographic principles.
• Experience with development frameworks like Truffle, Hardhat, or Ganache.
• Familiarity with web3 libraries (e.g., web3.js, ethers.js) for dApp development.
• Experience with version control systems (e.g., Git).
• Excellent problem-solving and analytical skills.
• Strong communication and collaboration abilities, particularly for a Midrand, Gauteng -based team.

Benefits

• In return for your expertise, our client offers a competitive remuneration package, comprehensive health benefits, opportunities for professional development and continuous learning, a stimulating work environment at the forefront of technological innovation, and the chance to make a significant impact in the rapidly evolving crypto and blockchain industry.
• You’ll be part of a collaborative culture that values creativity and forward-thinking.
• We believe in fostering talent and providing a platform for growth.
• Join us and help build the decentralized future from Midrand, Gauteng.