Senior Blockchain Engineer

Placements24; Benoni; Hybrid; ZAR 2,369,000 - 3,553,000; Full time

Benefits offered by this job

Fully remote

Job summary

Placements24 is seeking a Senior Blockchain Engineer to join a fully remote team shaping the future of Web3. You will design, implement, and deploy robust smart contracts and backend services powering scalable dApps.

The ideal candidate brings 5+ years of software engineering, with 3+ years in blockchain, and deep expertise in Solidity, Rust, Move, and modern development frameworks. Join a remote-first, innovative crypto environment.

Qualifications

• 5+ years of professional software engineering experience, with at least 3 years focused on blockchain development.
• Proficiency in Solidity, Rust, or Move for smart contracts.
• Experience with blockchain development frameworks (Hardhat, Truffle, Anchor).
• Strong understanding of distributed systems, cryptography, and consensus mechanisms.
• Experience with backend development languages (Node.js, Go, Python).
• Familiarity with Web3 libraries and tools for interacting with blockchains.
• Proven ability to design and implement secure and scalable smart contracts.
• Excellent problem-solving and debugging skills; strong remote collaboration abilities.

Responsibilities

• Design, develop, test, and deploy smart contracts on Ethereum, Polygon, Solana, and more.
• Build and maintain backend services and APIs for dApps.
• Architect scalable, secure blockchain solutions with cost-efficiency.
• Collaborate with frontend developers to integrate blockchain features.
• Conduct thorough code reviews and enforce security best practices.
• Troubleshoot complex blockchain issues and optimize performance.
• Stay updated on Web3 developments and cryptographic techniques.
• Contribute to technical roadmaps and architectural decisions.
• Mentor junior engineers and share knowledge across the team.
• Produce comprehensive technical documentation of code and systems.

Skills

Solidity

Rust

Move

Distributed systems

Backend development

Web3 libraries

Security & cryptography

Code reviews

Remote collaboration

Education

Bachelor's/Tough Master in CS or related

Master's degree

Equivalent practical experience

Tools

Hardhat

Truffle

Anchor

Job description

About the Role

Our client, a leading Web3 development studio, is seeking a highly skilled and passionate Senior Blockchain Engineer to join their dynamic, fully remote team. This is an exceptional opportunity to work on groundbreaking decentralized applications (dApps) and contribute to the architecture of scalable blockchain solutions. You will be instrumental in designing, developing, and deploying robust smart contracts and backend systems that power the next generation of the internet. The ideal candidate possesses a deep understanding of blockchain protocols, distributed systems, and a proven track record of delivering high-quality code. If you thrive in a collaborative, remote-first environment and are passionate about building the future of decentralized technology, this role is for you.

Key Responsibilities

• Design, develop, test, and deploy smart contracts on various blockchain platforms (e.g., Ethereum, Polygon, Solana).
• Build and maintain backend services and APIs for decentralized applications.
• Architect scalable and secure blockchain solutions, considering performance and cost-efficiency.
• Collaborate with frontend developers to integrate blockchain functionalities into user-facing applications.
• Conduct thorough code reviews, ensuring adherence to best practices and security standards.
• Troubleshoot and resolve complex technical issues related to blockchain systems and dApps.
• Stay abreast of the latest advancements in blockchain technology, cryptographic techniques, and Web3 development.
• Contribute to technical roadmap planning and architectural decision-making.
• Mentor junior engineers and share knowledge within the team.
• Write comprehensive technical documentation for code and system architecture.

Requirements

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• 5+ years of professional software engineering experience, with at least 3 years focused on blockchain development.
• Proficiency in smart contract languages such as Solidity, Rust, or Move.
• Experience with blockchain development frameworks (e.g., Hardhat, Truffle, Anchor).
• Strong understanding of distributed systems, consensus mechanisms, and cryptography.
• Experience with backend development languages and technologies (e.g., Node.js, Go, Python).
• Familiarity with Web3 libraries and tools for interacting with blockchains.
• Proven ability to design and implement secure and scalable smart contracts.
• Excellent problem-solving, debugging, and analytical skills.
• Strong communication and collaboration skills, essential for remote team dynamics.

Benefits

• This is a fully remote position offering significant flexibility.
• Our client provides a highly competitive salary, performance bonuses, and comprehensive health benefits.
• They are committed to employee growth, offering generous budgets for professional development, including online courses, conferences, and certifications.
• You'll join a passionate and innovative team working on cutting-edge projects that are defining the future of Web3.
• This role offers excellent opportunities for career advancement and the chance to be a key contributor in the thriving crypto and blockchain industry.