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Developer Tag Remote
Job Summary: Join our team to architect and integrate blockchain solutions, focusing on wallet integrations and secure smart contract interactions. Leverage your expertise in Web3 libraries to develop cutting-edge DApps and ensure seamless, secure user transactions. Key Responsibilities: Wallet Integrations: Implement popular wallet providers (MetaMask, Coinbase Wallet, WalletConnect), manage wallet injection events, and handle modals. Smart Contract Interaction: Work with smart contracts using tools like Web3.js or Ethers.js; collaborate on decentralized application (DApp) development. Troubleshooting & Debugging: Diagnose and resolve blockchain-related integration issues, ensuring compatibility across various wallet providers. Security Best Practices: Maintain secure wallet integra

Job Summary:

Join our team to architect and integrate blockchain solutions, focusing on wallet integrations and secure smart contract interactions. Leverage your expertise in Web3 libraries to develop cutting-edge DApps and ensure seamless, secure user transactions.

Key Responsibilities:

  • Wallet Integrations: Implement popular wallet providers (MetaMask, Coinbase Wallet, WalletConnect), manage wallet injection events, and handle modals.
  • Smart Contract Interaction: Work with smart contracts using tools like Web3.js or Ethers.js; collaborate on decentralized application (DApp) development.
  • Troubleshooting & Debugging: Diagnose and resolve blockchain-related integration issues, ensuring compatibility across various wallet providers.
  • Security Best Practices: Maintain secure wallet integrations, protect user data, and uphold safe transaction protocols.

Requirements:

  • Proven experience in blockchain/Web3 development (Solidity, EVM-compatible chains).
  • Familiarity with decentralized application stacks, including front-end integration.
  • Strong problem-solving skills for debugging on-chain/off-chain interactions.
  • Awareness of security standards and best practices in blockchain.

Preferred Qualifications (Senior Level):

  • Experience leading blockchain projects from ideation to deployment.
  • In-depth knowledge of scaling techniques, layer-2 solutions, and advanced Web3 tooling.
  • Track record of architecting secure, production-ready DApps.

Ready to innovate in the Web3 ecosystem?

Hybrid Work Structure: Enjoy the flexibility of a hybrid work environment—split your time between working from home and in the office.

Independence & Ownership: Take ownership of your work with the freedom to make decisions that directly impact the success of the project.

Open to Ideas: Your voice matters. We encourage creative input and are always open to listening to your ideas and solutions.

Structured & Responsible: We need people who are independent but also responsible and organized to ensure things run smoothly and on schedule.

Apply Now:

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Khan Tech Remote
About Us: Khantech is an IT startup dedicated to redefining the iGaming experience with cutting-edge technology and creative solutions. We are a team of Engineers, Designers, and gaming enthusiasts working remotely within Europe and Asia or in-house in our UAE/Dubai premises. About the product: https://www.vatanplatform.com We are looking for a highly skilled Full Stack Blockchain Developer to join our team. The ideal candidate will be proficient in both blockchain development and full-stack web development. You will be responsible for developing decentralized applications (dApps), smart contracts, and the backend and frontend of blockchain-based systems. Job Responsibilities: Design, develop, and deploy smart contracts and decentralized applications (dApps) on various blockchain platforms (Ethereum, Binan

About Us:

Khantech is an IT startup dedicated to redefining the iGaming experience with cutting-edge technology and creative solutions. We are a team of Engineers, Designers, and gaming enthusiasts working remotely within Europe and Asia or in-house in our UAE/Dubai premises. 

About the product:

https://www.vatanplatform.com

We are looking for a highly skilled Full Stack Blockchain Developer to join our team. The ideal candidate will be proficient in both blockchain development and full-stack web development. You will be responsible for developing decentralized applications (dApps), smart contracts, and the backend and frontend of blockchain-based systems.

Job Responsibilities:

  • Design, develop, and deploy smart contracts and decentralized applications (dApps) on various blockchain platforms (Ethereum, Binance Smart Chain, etc.).

  • Build and maintain front-end interfaces using modern web technologies (React, Angular, Vue.js, etc.).

  • Integrate front-end with back-end APIs, databases, and blockchain solutions.

  • Develop and implement secure, scalable, and efficient blockchain-based systems.

  • Troubleshoot, debug, and optimize blockchain applications and smart contracts.

  • Collaborate with cross-functional teams including product managers, designers, and other developers to define and implement new features.

  • Stay up-to-date with emerging trends and technologies in blockchain, DeFi, and Web3.

  • Ensure compliance with security protocols and best practices.

  • Contribute to codebase and manage version control using Git.

Key requirements:

  • 3+ years of experience in full-stack development.

  • Strong knowledge of cryptographic principles and blockchain architecture.

  • Proficient in web technologies (HTML5, CSS3, JavaScript, TypeScript).

  • Experience with databases (SQL and NoSQL).

  • Knowledge of version control systems like Git.

  • Experience with testing frameworks for smart contracts (Truffle, Hardhat, etc.).

  • Familiarity with deploying applications on cloud platforms (AWS, GCP, etc.).

  • Proven experience working with blockchain technologies (Ethereum, Solana, Binance Smart Chain, etc.).

  • Hands-on experience with smart contract development (Solidity, Rust, Vyper, etc.).

  • Experience building decentralized applications (dApps) and integrating them with blockchain networks.

  • Familiarity with Web3.js, Ethers.js, or similar JavaScript libraries for blockchain interaction.

  • Experience with backend development frameworks like Node.js, Express, Django, or Flask.

  • Proficiency in front-end technologies such as React.js, Vue.js, or Angular.

Expected Soft skills (3-5 the most important attributes)

  • Strong problem-solving and analytical skills.

  • Excellent communication and teamwork skills.

  • Ability to quickly learn new technologies and adapt to changing environments.

Benefits:

  • 🚀Competitive Salary

  • 📚Comprehensive Training and Career Development through our talent management program

  • 🌐Fully remote or Comfortable office in Dubai, OAE/Erevan, Armenia

  • 🏖️Generous Paid Vacation

Apply Now:

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Kromatika Finance Remote
Job Title: Web3 Front-End Developer Organization: Kromatika DAO Location: Fully Remote About Us Kromatika DAO is at the forefront of decentralized finance (DeFi), building innovative and cutting-edge tools for the blockchain ecosystem. Our flagship product, a MetaDEX, revolutionizes trading with features like Aggregated Swaps, Gasless Swaps, Fee-Earning Limit Orders, and Perpetual Trading across multiple chains, including Ethereum, Arbitrum, Polygon, Optimism, and Base. We are looking for an ambitious and highly skilled Web3 Front-End Developer who is passionate about front-end development and committed to the principles of decentralization. If you thrive in fast-paced, collaborative environments and want to shape the future of DeFi, we’d love to hear from you. Direct applicants only. We are not engaging with recruiters, headhunters, or agencies for this role. W
  • Job Title: Web3 Front-End Developer
  • Organization: Kromatika DAO
  • Location: Fully Remote

About Us

Kromatika DAO is at the forefront of decentralized finance (DeFi), building innovative and cutting-edge tools for the blockchain ecosystem. Our flagship product, a MetaDEX, revolutionizes trading with features like Aggregated Swaps, Gasless Swaps, Fee-Earning Limit Orders, and Perpetual Trading across multiple chains, including Ethereum, Arbitrum, Polygon, Optimism, and Base.

We are looking for an ambitious and highly skilled Web3 Front-End Developer who is passionate about front-end development and committed to the principles of decentralization. If you thrive in fast-paced, collaborative environments and want to shape the future of DeFi, we’d love to hear from you.

Direct applicants only. We are not engaging with recruiters, headhunters, or agencies for this role.

What You’ll Do

  • Front-End Development: Architect, refine, and maintain the UI of our multichain DEX, ensuring a seamless, intuitive, and visually polished user experience.
  • User Experience: Design and optimize user interface workflows for advanced DeFi features, including aggregated swaps, limit orders, and gasless transactions.
  • Performance & Optimization: Enhance front-end performance, ensuring smooth, responsive interactions across different devices and networks.
  • Web3 Integration: Implement and interact with smart contracts using tools like Web3.js and Ethers.js.
  • Collaboration: Work closely with senior developers, and blockchain engineers to deliver cutting-edge DeFi solutions.

Required Skills & Qualifications

✅ Technical Skills:

  • Front-End Development: 1–4 years of experience in front-end development.
  • Languages & Frameworks: Proficiency in TypeScript, React, and CSS.
  • Web3 Libraries: Basic understanding of Ethers.js, Web3.js, or similar blockchain tools.
  • Git & Version Control: Comfortable with Git-based workflows.
  • Blockchain Concepts: Familiarity with wallets, transactions, DEX trading, smart contracts, gas fees and etc.
  • UI/UX Awareness: Strong eye for aesthetics, usability, and responsive design.

✅ Soft Skills:

  • Self-Motivated: Ability to work independently and take ownership of projects.
  • Fast Learner: Quick to adapt to new tools, frameworks, and technologies.
  • Strong Communication: Ability to collaborate effectively in a remote and distributed team.
  • Attention to Detail: Commitment to writing clean, efficient, and maintainable code.

Nice to Have (Optional):

  • Backend Knowledge: Some exposure to Node.js or Solidity for smart contract development.
  • Extended Blockchain Expertise: Deeper understanding of DeFi protocols, tokenomics, and crypto ecosystems.
  • Advanced Uniswap User: Deeper understanding of Uniswap v3 - Concentrated Liquidity, Univ2 and UniV4.

Why Join Kromatika DAO?

  • Work at the cutting edge of DeFi innovation in a rapidly evolving ecosystem.
  • Be part of a fully decentralized, remote-first organization.
  • Collaborate with a team of top-tier blockchain developers.
  • Make a meaningful impact on the future of decentralized trading.
  • Fully flexible work schedule – Set your own hours and work at your peak productivity.
  • Earn incentives in crypto, with bi-weekly payments to ensure financial flexibility.
  • An exclusive gateway to immersive, firsthand expertise in the world of DeFi.

Ready to build the next generation of DeFi? Apply now!

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SORAMITSU Shibuya City Tokyo Japan
is an award-winning global financial technology company with expertise in developing blockchain-based solutions for digital asset and identity management. Our mission is to use blockchain to promote innovation and solve pressing societal challenges. SORAMITSU is the developer of and major contributor to the open-source blockchain platform Hyperledger Iroha, which is tailored for enterprise and public-sector use. Hyperledger Iroha, a project of Hyperledger Foundation, part of the Linux Foundation, has a permissions system that is scalable and performant. Utilizing blockchain, SORAMITSU has developed a digital currency for the National Bank of Cambodia, a CBDC Proof-of-Concept with the Bank of the Lao PDR, a closed-loop payment system for the University of Aizu in Japan, an identity verification system prototype for Bank Central Asia in Indonesia, we were finalists in the Monetary Authority of Singapore CBDC Challenge, and are current
is an award-winning global financial technology company with expertise in developing blockchain-based solutions for digital asset and identity management. Our mission is to use blockchain to promote innovation and solve pressing societal challenges.

SORAMITSU is the developer of and major contributor to the open-source blockchain platform Hyperledger Iroha, which is tailored for enterprise and public-sector use. Hyperledger Iroha, a project of Hyperledger Foundation, part of the Linux Foundation, has a permissions system that is scalable and performant.

Utilizing blockchain, SORAMITSU has developed a digital currency for the National Bank of Cambodia, a CBDC Proof-of-Concept with the Bank of the Lao PDR, a closed-loop payment system for the University of Aizu in Japan, an identity verification system prototype for Bank Central Asia in Indonesia, we were finalists in the Monetary Authority of Singapore CBDC Challenge, and are currently participating in Asia-Pacific's first proof-of-concept test of a cross-border, multi-currency security settlement system using distributed ledger technology with the Asian Development Bank. We have also conducted proof-of-concept tests for several major Japanese enterprises, and are active contributors to open source projects, such as Klaytn, South Korea's leading Layer-1 blockchain, KAGOME, the C++ Polkadot Host implementation, the SORA crypto-economic system, the Polkaswap DEX, and the DeFi wallet, Fearless Wallet

Based on these experiences, SORAMITSU aims to deploy cutting-edge technology on a global level in order to expedite financial inclusion and health, mitigate economic inefficiencies, and contribute to the fulfilment of the Sustainable Development Goals.

You can find out more by visiting our homepage at soramitsu.co.jp or check out our Twitter profile.

We are seeking a highly skilled blockchain developer with deep expertise in blockchain technologies and smart contract development, focusing on Solidity, Ethereum, and various Layer 1 and Layer 2 protocols. This role will involve designing, implementing, and optimizing secure and scalable blockchain solutions.

You will be responsible for:

  • Develop, deploy, and maintain secure, efficient, and scalable smart contracts on Ethereum and other blockchain networks.
  • Architect decentralized systems and define smart contract standards for new projects and features.
  • Lead code reviews and provide mentorship to junior and mid-level developers.Optimize smart contract code for gas efficiency, performance, and security.
  • Collaborate with cross-functional teams including frontend developers, product managers, and security experts.Identify and mitigate security risks within smart contracts.
  • Stay up-to-date with the latest trends, tools, and best practices in Solidity and blockchain development.
  • Perform rigorous testing and auditing of contracts, and ensure all code is secure and bug-free.

Requirements:

  • 3+ years working specifically with Solidity and Ethereum-based development.
  • Deep understanding of Ethereum's architecture, smart contracts, and related technologies.
  • Proficient in Solidity, Web3.js, and Ethers.js.Experience with deploying and interacting with smart contracts on Ethereum, Binance Smart Chain, or other EVM-compatible blockchains.
  • Familiarity with common design patterns (e.g., ERC-20, ERC-721, ERC-1155) and decentralized protocols.Expertise in smart contract security practices, including common vulnerabilities (e.g., reentrancy, overflow/underflow, front-running).
  • Knowledge of decentralized finance (DeFi) protocols and their smart contract ecosystems.
  • Experience with testing frameworks (e.g., Truffle, Hardhat, Foundry).
  • Experience with CI/CD pipelines and blockchain-specific deployment strategies.
  • Ability to communicate complex technical concepts effectively to both technical and non-technical stakeholders.
  • Strong problem-solving, debugging, and optimization skills.
    Preferred:
  • Experience in developing for Layer 2 networks or alternative blockchain protocols (e.g., Optimism, Arbitrum, Polygon).
  • Familiarity with cross-chain technologies and bridging protocols.
  • Experience with smart contract auditing tools like Slither, MythX, and others
  • Experience with Polkadot ecosystem (Rust, Substrate)

General Skills:

  • Programming Languages: Solidity, JavaScript, Python, with knowledge of Rust considered a plus.
  • Blockchain Platforms: Ethereum, Binance Smart Chain, Polygon, Arbitrum, Optimism, etc.
  • Frameworks & Libraries: Truffle, Hardhat, Foundry, Web3.js, Ethers.js.
  • Security Best Practices: Smart contract auditing, vulnerability mitigation, best practices for gas optimization.
  • Collaboration Tools: Git, GitHub/GitLab, JIRA, Slack, etc.
  • Soft Skills: Strong communication in English, problem-solving, and analytical thinking.

Additional Requirements:

  • Please include a link to your GitHub profile showcasing examples of your code or repositories where you’ve contributed.

What we offer:

  • A relaxed remote-first (work from anywhere) work environment with flexible working hours
  • A permanent, full-time role with a rapidly growing international team of professionals
  • An educational budget to support your continued growth and development
  • Opportunities to attend global meetups and conferences for learning and/or speaking engagements
  • An opportunity to be a part of an award-winning team designing a better world through decentralized technologies

This is a remote position. Our distributed team is mostly spread across Europe and Asia. Team meetings are held generally during European working hours, and it is expected that you would adapt if necessary and be available accordingly.

If you have the required qualifications and are passionate about the Web3 industry, we encourage you to apply for this exciting opportunity.

SORAMITSU values diversity and is committed to providing equal opportunities for all applicants and employees. Our employment decisions, such as hiring, promotion, discipline, and termination, are based solely on an individual's qualifications, performance, and business needs. We do not discriminate against anyone on the basis of their race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other protected status under federal, state, or local law.

Apply Now:

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Autonomys Network Remote
The Autonomys Network (formerly, Subspace Labs) Autonomys is an early-stage, venture-backed startup pioneering a new category at the intersection of AI and Web3. With our upcoming mainnet launch this year, the Autonomys Network is a radically decentralized, next-generation layer one blockchain powered by an innovative proof-of-archival storage (PoAS) consensus mechanism. Our project serves as a foundation for global collaboration between humans and AI, ushering in a new era of possibilities. The Subspace Protocol is based on original research funded by the US National Science Foundation. To learn more, visit our Website and read the technical whitepaper . In this role, you will… Build user flows across both web and backend (React and Node). Integrate directly with other blockchain networks using native RPCs.

The Autonomys Network (formerly, Subspace Labs)

Autonomys is an early-stage, venture-backed startup pioneering a new category at the intersection of AI and Web3. With our upcoming mainnet launch this year, the Autonomys Network is a radically decentralized, next-generation layer one blockchain powered by an innovative proof-of-archival storage (PoAS) consensus mechanism. Our project serves as a foundation for global collaboration between humans and AI, ushering in a new era of possibilities. The Subspace Protocol is based on original research funded by the US National Science Foundation.

To learn more, visit our Website and read the technical whitepaper.

In this role, you will…

  • Build user flows across both web and backend (React and Node).
  • Integrate directly with other blockchain networks using native RPCs.
  • Collaborate with Product, Design, and Engineering to define, prioritize, and build features for Web3 users.
  • Drive detailed project definition and cross-functional alignment.

Key Requirements:

  • 3+ years of experience building open-source code that is clean, maintainable, and well-tested, for production networks at scale.
  • 2+ years of experience working with Typescript and Node.js.
  • 2+ years of experience of experience with Ethers/Web3.js or Polkadot.js.
  • 2+ years of experience working with React.js.
  • A passion for decentralized, peer-to-peer systems and Web3 technologies.

Preferred Skills:

  • Familiarity with Substrate and the Polkadot ecosystem.
  • Familiarity with Next.js, Tailwind CSS and other modern frontend frameworks.
  • Experience with SubQuery data indexing and querying framework.
  • Experience building developer SDKs and internal tools.
  • Experience developing AI tools, including Retrieval-Augmented Generation (RAG) systemsAI agents, and custom chatbots.
  • Experience integrating smart contracts with frontend.
  • Theoretical knowledge of blockchains and distributed systems.

What We Offer

  • The ability to work from anywhere in the world
  • A competitive salary with generous equity and token grants
  • Medical, dental, and vision insurance (US-based only)
  • A unique opportunity to shape the future of the internet
  • Team off-sites in various locations around the globe
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