Our client, WhatJobs Direct, is actively seeking a talented and experienced Smart Contract Engineer to join their groundbreaking team. This is a fully remote position, offering the flexibility to work from anywhere. You will be responsible for designing, developing, testing, and deploying secure and efficient smart contracts on various blockchain platforms. The ideal candidate possesses a strong background in Solidity or other smart contract programming languages and a deep understanding of blockchain architecture and security best practices. This role is crucial for building the next generation of decentralized applications and plays a vital part in our client's mission to innovate within the blockchain space.

About the Role

Our client, WhatJobs Direct, is actively seeking a talented and experienced Smart Contract Engineer to join their groundbreaking team. This is a fully remote position, offering the flexibility to work from anywhere. You will be responsible for designing, developing, testing, and deploying secure and efficient smart contracts on various blockchain platforms. The ideal candidate possesses a strong background in Solidity or other smart contract programming languages and a deep understanding of blockchain architecture and security best practices. This role is crucial for building the next generation of decentralized applications and plays a vital part in our client's mission to innovate within the blockchain space.

Key Responsibilities

- Design, develop, and implement secure and robust smart contracts using languages like Solidity, Vyper, or similar.
- Write comprehensive unit and integration tests for smart contracts to ensure functionality and security.
- Deploy smart contracts to various blockchain networks (e.g., Ethereum, Polygon, Binance Smart Chain).
- Audit existing smart contracts for vulnerabilities and performance issues.
- Collaborate with backend developers, frontend developers, and product managers to integrate smart contracts into decentralized applications (dApps).
- Stay up-to-date with the latest developments in blockchain technology, smart contract security, and best practices.
- Participate in code reviews to maintain code quality and identify potential risks.
- Troubleshoot and resolve issues related to smart contract execution.
- Contribute to the overall architecture and design of decentralized systems.

Requirements

- Proven experience as a Smart Contract Developer or Blockchain Engineer.
- Proficiency in Solidity and a deep understanding of the Ethereum Virtual Machine (EVM).
- Experience with smart contract development frameworks such as Hardhat, Truffle, or Foundry.
- Strong knowledge of blockchain principles, consensus mechanisms, and distributed ledger technology.
- Experience with security best practices for smart contracts and common vulnerabilities (e.g., reentrancy, integer overflows).
- Familiarity with developing and interacting with dApps.




- Experience with version control systems like Git.
- Excellent problem-solving skills and attention to detail.
- Strong communication skills and the ability to work effectively in a remote, collaborative team environment.
- Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent practical experience).

Benefits

This role offers a highly competitive salary and the ultimate flexibility of a 100% remote work arrangement. Our client values work-life balance and provides a supportive environment for continuous learning and professional growth. You will have the opportunity to work on cutting-edge projects that are shaping the future of blockchain technology. Join a talented and passionate global team from anywhere and contribute to impactful innovations. While the role is remote, it is conceptually linked to our operations that serve clients across Spain, including those in areas like Barcelona . We offer comprehensive health benefits and opportunities for career advancement in a rapidly growing industry.

Our client is a global leader in decentralized technology solutions, seeking a highly skilled Remote Blockchain Engineer with expertise in smart contract development. This fully remote position offers the opportunity to work from anywhere while contributing to groundbreaking projects in the rapidly evolving blockchain space. The ideal candidate will have a deep understanding of blockchain architecture, extensive experience with smart contract languages (such as Solidity), and a passion for building secure, efficient, and scalable decentralized applications (dApps). You will be an integral part of an innovative and collaborative team, working on challenging projects that push the boundaries of what’s possible with blockchain technology. We value autonomy, creativity, and a commitment to excellence. This is an exceptional opportunity to join a forward-thinking company that is shaping the future of finance and technology, offering significant career growth and the chance to make a tangible impact.

About the Role

Our client is a integral leader in decentralized technology solutions, seeking a highly skilled Remote Blockchain Engineer with expertise in smart contract development. This fully remote position offers the opportunity to work from anywhere while contributing to groundbreaking projects in the rapidly evolving blockchain space. The ideal candidate will have a deep understanding of blockchain architecture, extensive experience with smart contract languages (such as Solidity), and a passion for building secure, efficient,



and scalable decentralized applications (dApps). You will be an integral part of an innovative and collaborative team, working on challenging projects that push the boundaries of what’s possible with blockchain technology. We value autonomy, creativity, and a commitment to excellence. This is an exceptional opportunity to join a forward-thinking company that is shaping the future of finance and technology, offering significant career growth and the chance to make a tangible impact.

Key Responsibilities

- Design, develop, test, and deploy secure and efficient smart contracts on various blockchain platforms (e.g., Ethereum).
- Write high-quality, well-documented, and thoroughly tested smart contract code.
- Collaborate with product managers and other engineers to define smart contract requirements and architecture.
- Develop decentralized applications (dApps) and integrate them with smart contracts.
- Conduct security audits and vulnerability assessments of smart contracts.
- Stay up-to-date with the latest advancements in blockchain technology and smart contract development.
- Optimize smart contract gas efficiency and transaction performance.
- Participate in code reviews, providing constructive feedback to peers.
- Troubleshoot and resolve issues related to smart contract execution and deployment.
- Contribute to the overall technical strategy and roadmap for blockchain initiatives.

Requirements

- Proven experience as a Blockchain Engineer or Smart Contract Developer.
- Strong proficiency in smart contract programming languages like Solidity.
- Deep understanding of blockchain protocols, consensus mechanisms, and cryptography.
- Experience with EVM (Ethereum Virtual Machine) and related tools.
- Familiarity with web3 libraries and frameworks (e.g., Web3.js, Ethers.js).
- Knowledge of security best practices for smart contract development and auditing.
- Experience with decentralized application (dApp) development is highly desirable.
- Solid understanding of version control systems (e.g., Git).
- Excellent problem-solving, analytical, and debugging skills.
- Strong communication and collaboration skills in a remote environment.
- Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

Benefits

- Highly competitive salary package.
- Fully remote work arrangement, offering ultimate flexibility.
- Comprehensive health, dental, and vision insurance.
- Generous paid time off and flexible working hours.
- Opportunities for professional growth, learning, and development in a rapidly evolving field.
- Be part of a visionary company at the forefront of blockchain innovation.
- Work with a talented and diverse international team.
- Access to cutting-edge blockchain development tools.
- Regular virtual team events and collaborations.
- Contribute to projects with significant real-world impact.

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📌 Ingeniero/A De Contratos (Cáceres)
🏢 Segula Technologies
📍 Cáceres