Blockchain Developer (Solidity & Rust) (Crypto / Blockchain)
Posted 2025-08-23
Remote, USA
Full Time
Immediate Start
<p><strong>Caiz</strong></p>
<p><strong>Revolutionizing Islamic Finance with Blockchain Technology</strong></p>
<p>Are you ready to be part of a groundbreaking initiative that combines Islamic finance principles with cutting-edge blockchain technology?</p>
<p><strong>Look no further than Caiz – The First Islamic Ecosystem Built on Blockchain</strong></p>
<p>At Caiz, our mission is clear: to create a Fiqh compliant financial ecosystem that provides our community with fair and easy access to ethical financial products and services. We believe in empowering individuals to build a strong financial future while engaging in long-term economically beneficial behavior.</p>
<p>Our native coin, Caizcoin, that fuels the Caizblockchain. With Caizcoin, you can make seamless payments, store value, and interact with a range of ethical financial products we are developing. The centerpiece of our ecosystem is the innovative Caizapp, giving users complete control over their digital assets.</p>
<p>We are a passionate team reshaping finance, and we are expanding our dynamic workforce. Join us in a collaborative work environment focused on creating a fast and compliant money transfer structure.</p>
<p><strong>Why to Join Caiz?</strong></p>
<ul>
<li><strong>Innovative & Purpose-Driven</strong>: At Caiz, we combine advanced blockchain technology with the principles of Islamic finance to create an innovative and modern financial system. Join us to be part of a forward-thinking organization that is reshaping the future of finance.</li>
<li><strong>Ethical Impact</strong>: As part of Caiz, you'll be working in an Organization that prioritizes <strong>ethics</strong> and <strong>integrity</strong> in all its operations, ensuring that every solution we offer aligns with the core values of fairness, transparency, and respect.</li>
<li><strong>Growth & Learning Opportunities</strong>: At Caiz, we value personal and professional growth. You'll have the opportunity to learn, innovate, and grow within a dynamic, supportive environment, while contributing to the development of ethical financial solutions.</li>
<li><strong>Global Vision, Local Impact</strong>: Caiz is focused on creating an inclusive, sustainable financial system that empowers individuals globally. You’ll be contributing to a company that has a positive impact on local communities and the global financial landscape.</li>
<li><strong>Collaborative Culture</strong>: We believe in teamwork and collaboration. You'll work alongside passionate professionals who are committed to driving change in the crypto and blockchain space, working together to create an ethical financial future.</li>
<li><strong>Secure & Transparent Environment</strong>: We emphasize <strong>trust</strong> and <strong>security</strong> in all aspects of our operations. As part of Caiz, you’ll be part of a transparent organization that values customer trust and ensures the highest security standards in the crypto space.</li>
</ul>
<h2 id="tasks">Tasks</h2>
<p>We are looking for a highly skilled <strong>Blockchain Developer</strong> with expertise in <strong>Solidity and Rust</strong> to join our growing engineering team. You will play a key role in developing and optimizing smart contracts, blockchain protocols, and DeFi components that power the Caiz ecosystem.</p>
<p>As part of the core blockchain development team, you’ll work on both Ethereum-compatible smart contracts and Rust-based custom chain logic, contributing to secure, scalable, and innovative blockchain infrastructure. </p>
<p><strong>Responsibilities:</strong></p>
<ul>
<li>Design, develop, and deploy smart contracts using <strong>Solidity</strong> on EVM-compatible blockchains.</li>
<li>Build and maintain <strong>Rust-based</strong> blockchain modules, such as on Substrate or Solana-compatible platforms.</li>
<li>Contribute to the design of custom blockchain protocols and token standards.</li>
<li>Write secure, gas-optimized, and thoroughly tested smart contracts.</li>
<li>Collaborate with frontend and backend teams to integrate blockchain components into products.</li>
<li>Conduct code reviews, audits, and vulnerability assessments for blockchain code.</li>
<li>Analyze and improve the performance, security, and scalability of the Caiz blockchain.</li>
<li>Stay up-to-date with the latest developments in blockchain technologies, including new EIPs, cryptographic primitives, and layer-2 solutions.</li>
</ul>
<h2 id="requirements">Requirements</h2>
<p><strong>Experience:</strong></p>
<ul>
<li>3+ years of experience in blockchain development with hands-on coding in <strong>Solidity and Rust</strong>.</li>
<li>Strong understanding of smart contract design, blockchain architecture, cryptography, and consensus mechanisms.</li>
<li>Experience developing and deploying smart contracts on Ethereum or similar EVM chains.</li>
<li>Proficiency in Rust for blockchain environments such as Substrate or Solana.</li>
<li>Familiarity with Web3.js, Ethers.js, Hardhat, Truffle, and related tools.</li>
<li>Understanding of DeFi protocols, token standards (ERC-20, ERC-721, etc.), and layer-1/layer-2 ecosystems.</li>
<li>Experience with version control systems (Git) and CI/CD workflows.</li>
<li>Strong problem-solving skills and ability to write clean, maintainable code.</li>
</ul>
<p><strong>Preferred Skills</strong></p>
<ul>
<li>Experience in building or contributing to a Layer 1 or Layer 2 blockchain.</li>
<li>Knowledge of blockchain security best practices and audit processes.</li>
<li>Exposure to zero-knowledge proofs (ZK), rollups, or cross-chain bridges.</li>
<li>Experience in working within agile or startup environments.</li>
<li>Understanding of Islamic finance or Sharia-compliant financial principles is a plus.</li>
</ul>
<p><strong>Level of studies:</strong> Bachelor’s degree in Computer Science, Software Engineering, Mathematics, or a related technical field.<br><em>(A Master’s degree or equivalent experience in blockchain development is a plus.)</em> </p>
<p><strong>Language Requirements:</strong> Fluent in English</p>
<h2 id="benefits">Benefits</h2>
<p><strong>Benefits at Caiz:</strong></p>
<ul>
<li><strong>Competitive Financial Compensation</strong>: We offer financial benefits that reflect the value of your work and dedication.</li>
<li><strong>Work Flexibility</strong>: Enjoy the flexibility to work from home, the office, or even abroad.</li>
<li><strong>Annual Holidays</strong>: Generous paid time off to help you maintain a healthy work-life balance.</li>
<li><strong>Relocation Assistance</strong>: We provide relocation support for employees moving to new locations.</li>
<li><strong>Professional Development</strong>: Opportunities for training, certifications, and career growth.</li>
<li><strong>Employee Recognition</strong>: Programs to celebrate and reward your achievements and contributions.</li>
<li><strong>Inclusive & Collaborative Culture</strong>: A supportive and diverse work environment where your voice matters.</li>
<li><strong>Diversity, Equality, and Inclusion</strong>: We are committed to fostering a workplace that values diversity and promotes equality and inclusion for all employees.</li>
</ul>
<p>Don't miss this opportunity – apply now and be part of the Caiz revolution.</p>
<p><strong>Revolutionizing Islamic Finance with Blockchain Technology</strong></p>
<p>Are you ready to be part of a groundbreaking initiative that combines Islamic finance principles with cutting-edge blockchain technology?</p>
<p><strong>Look no further than Caiz – The First Islamic Ecosystem Built on Blockchain</strong></p>
<p>At Caiz, our mission is clear: to create a Fiqh compliant financial ecosystem that provides our community with fair and easy access to ethical financial products and services. We believe in empowering individuals to build a strong financial future while engaging in long-term economically beneficial behavior.</p>
<p>Our native coin, Caizcoin, that fuels the Caizblockchain. With Caizcoin, you can make seamless payments, store value, and interact with a range of ethical financial products we are developing. The centerpiece of our ecosystem is the innovative Caizapp, giving users complete control over their digital assets.</p>
<p>We are a passionate team reshaping finance, and we are expanding our dynamic workforce. Join us in a collaborative work environment focused on creating a fast and compliant money transfer structure.</p>
<p><strong>Why to Join Caiz?</strong></p>
<ul>
<li><strong>Innovative & Purpose-Driven</strong>: At Caiz, we combine advanced blockchain technology with the principles of Islamic finance to create an innovative and modern financial system. Join us to be part of a forward-thinking organization that is reshaping the future of finance.</li>
<li><strong>Ethical Impact</strong>: As part of Caiz, you'll be working in an Organization that prioritizes <strong>ethics</strong> and <strong>integrity</strong> in all its operations, ensuring that every solution we offer aligns with the core values of fairness, transparency, and respect.</li>
<li><strong>Growth & Learning Opportunities</strong>: At Caiz, we value personal and professional growth. You'll have the opportunity to learn, innovate, and grow within a dynamic, supportive environment, while contributing to the development of ethical financial solutions.</li>
<li><strong>Global Vision, Local Impact</strong>: Caiz is focused on creating an inclusive, sustainable financial system that empowers individuals globally. You’ll be contributing to a company that has a positive impact on local communities and the global financial landscape.</li>
<li><strong>Collaborative Culture</strong>: We believe in teamwork and collaboration. You'll work alongside passionate professionals who are committed to driving change in the crypto and blockchain space, working together to create an ethical financial future.</li>
<li><strong>Secure & Transparent Environment</strong>: We emphasize <strong>trust</strong> and <strong>security</strong> in all aspects of our operations. As part of Caiz, you’ll be part of a transparent organization that values customer trust and ensures the highest security standards in the crypto space.</li>
</ul>
<h2 id="tasks">Tasks</h2>
<p>We are looking for a highly skilled <strong>Blockchain Developer</strong> with expertise in <strong>Solidity and Rust</strong> to join our growing engineering team. You will play a key role in developing and optimizing smart contracts, blockchain protocols, and DeFi components that power the Caiz ecosystem.</p>
<p>As part of the core blockchain development team, you’ll work on both Ethereum-compatible smart contracts and Rust-based custom chain logic, contributing to secure, scalable, and innovative blockchain infrastructure. </p>
<p><strong>Responsibilities:</strong></p>
<ul>
<li>Design, develop, and deploy smart contracts using <strong>Solidity</strong> on EVM-compatible blockchains.</li>
<li>Build and maintain <strong>Rust-based</strong> blockchain modules, such as on Substrate or Solana-compatible platforms.</li>
<li>Contribute to the design of custom blockchain protocols and token standards.</li>
<li>Write secure, gas-optimized, and thoroughly tested smart contracts.</li>
<li>Collaborate with frontend and backend teams to integrate blockchain components into products.</li>
<li>Conduct code reviews, audits, and vulnerability assessments for blockchain code.</li>
<li>Analyze and improve the performance, security, and scalability of the Caiz blockchain.</li>
<li>Stay up-to-date with the latest developments in blockchain technologies, including new EIPs, cryptographic primitives, and layer-2 solutions.</li>
</ul>
<h2 id="requirements">Requirements</h2>
<p><strong>Experience:</strong></p>
<ul>
<li>3+ years of experience in blockchain development with hands-on coding in <strong>Solidity and Rust</strong>.</li>
<li>Strong understanding of smart contract design, blockchain architecture, cryptography, and consensus mechanisms.</li>
<li>Experience developing and deploying smart contracts on Ethereum or similar EVM chains.</li>
<li>Proficiency in Rust for blockchain environments such as Substrate or Solana.</li>
<li>Familiarity with Web3.js, Ethers.js, Hardhat, Truffle, and related tools.</li>
<li>Understanding of DeFi protocols, token standards (ERC-20, ERC-721, etc.), and layer-1/layer-2 ecosystems.</li>
<li>Experience with version control systems (Git) and CI/CD workflows.</li>
<li>Strong problem-solving skills and ability to write clean, maintainable code.</li>
</ul>
<p><strong>Preferred Skills</strong></p>
<ul>
<li>Experience in building or contributing to a Layer 1 or Layer 2 blockchain.</li>
<li>Knowledge of blockchain security best practices and audit processes.</li>
<li>Exposure to zero-knowledge proofs (ZK), rollups, or cross-chain bridges.</li>
<li>Experience in working within agile or startup environments.</li>
<li>Understanding of Islamic finance or Sharia-compliant financial principles is a plus.</li>
</ul>
<p><strong>Level of studies:</strong> Bachelor’s degree in Computer Science, Software Engineering, Mathematics, or a related technical field.<br><em>(A Master’s degree or equivalent experience in blockchain development is a plus.)</em> </p>
<p><strong>Language Requirements:</strong> Fluent in English</p>
<h2 id="benefits">Benefits</h2>
<p><strong>Benefits at Caiz:</strong></p>
<ul>
<li><strong>Competitive Financial Compensation</strong>: We offer financial benefits that reflect the value of your work and dedication.</li>
<li><strong>Work Flexibility</strong>: Enjoy the flexibility to work from home, the office, or even abroad.</li>
<li><strong>Annual Holidays</strong>: Generous paid time off to help you maintain a healthy work-life balance.</li>
<li><strong>Relocation Assistance</strong>: We provide relocation support for employees moving to new locations.</li>
<li><strong>Professional Development</strong>: Opportunities for training, certifications, and career growth.</li>
<li><strong>Employee Recognition</strong>: Programs to celebrate and reward your achievements and contributions.</li>
<li><strong>Inclusive & Collaborative Culture</strong>: A supportive and diverse work environment where your voice matters.</li>
<li><strong>Diversity, Equality, and Inclusion</strong>: We are committed to fostering a workplace that values diversity and promotes equality and inclusion for all employees.</li>
</ul>
<p>Don't miss this opportunity – apply now and be part of the Caiz revolution.</p>