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Burhani Media Solutions LLC is seeking a highly skilled Full Stack Blockchain Developer to join our team. The ideal candidate will have expertise in developing and deploying smart contracts, decentralized applications (dApps), and full-stack blockchain solutions. If you have a strong background in blockchain development, smart contract programming, and full-stack web development, we want to hear from you!
Responsibilities:- Design, develop, and deploy secure smart contracts using Solidity or Rust.
- Build and integrate decentralized applications (dApps) on blockchain platforms like Ethereum, Binance Smart Chain, or others.
- Develop and maintain backend services using Node.js, Python, or PHP.
- Create responsive and dynamic frontend interfaces using React, Next.js, Vue.js, or Angular.
- Work with Web3.js, Ethers.js, or other blockchain libraries for blockchain interactions.
- Implement blockchain security best practices to ensure smart contract integrity and protect against vulnerabilities.
- Optimize gas fees, transaction costs, and blockchain performance.
- Collaborate with the design and product teams to deliver seamless user experiences.
- Conduct code reviews, testing, and debugging to ensure high-quality production-ready code.
- Proven experience as a Full Stack Blockchain Developer.
- Strong proficiency in Solidity, Rust, or other smart contract languages.
- Hands-on experience with Ethereum, Polygon, Binance Smart Chain (BSC), or other blockchain networks.
- Proficiency in backend development (Node.js, Python, or PHP with Laravel).
- Strong knowledge of frontend frameworks like React.js, Next.js, Vue.js, or Angular.
- Experience with Web3.js, Ethers.js, or similar libraries.
- Familiarity with IPFS, The Graph, or Layer 2 solutions is a plus.
- Understanding of blockchain security best practices (reentrancy, front-running, etc.).
- Experience with smart contract audits is a plus.
- Strong problem-solving and communication skills.
- Prior experience working with DeFi, NFTs, or GameFi projects.
- Familiarity with Docker, Kubernetes, or cloud infrastructure.
- Experience with Hyperledger, Cosmos, or Polkadot ecosystems.
- Hourly rate: $25 - $40, based on experience and expertise.
- Flexible work hours.
- Opportunity to work on cutting-edge blockchain projects.
If you’re passionate about blockchain development and want to be part of a dynamic team, apply now! 🚀
Apply Now:
Apply Now:
Consensys is the leading blockchain and web3 software company founded by Joe Lubin, CEO of Consensys and Co-Founder of Ethereum. Since 2014, Consensys has been at the forefront of innovation, pioneering technological developments within the web3 ecosystem.
Through our product suite, including the MetaMask platform, Infura, Linea, Diligence, and our NFT toolkit Phosphor, we have become the trusted collaborator for users, creators, and developers on their path to build and belong in the world they want to see.
Whether building a dapp, an NFT collection, a portfolio, or a better future, the instinct to build is universal. Consensys inspires and champions the builder instinct in everyone by making web3 universally easy to use and develop on.
Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on.
You’ll get to work on the tools, infrastructure, and apps that scale these platforms to onboard one billion participants and 5 million developers. You’ll be constantly exposed to new concepts, ideas, and frameworks from your peers, and as you work on different projects — challenging you to stay at the top of your game. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies.
About MetaMask
We’re building for a future where the internet and world economy empowers people through interactions based on consent, privacy, and free association. Where both communities and individuals flourish. To accomplish that, we’re working hard to make web3 accessible for everyone around the world.
MetaMask is both a crypto wallet and a gateway to the decentralized web. Our tools help people create communities, play video games, access financial services, make payments, invest in assets, protect against economic turmoil, and more. Our browser extension and mobile platforms meet the needs of millions of users and developers across the world.
Originally a humble key manager, today MetaMask serves over 30 million monthly active users as a decentralized application development platform, an aggregator of decentralized cryptocurrency exchanges, and a decentralized identity manager.
MetaMask Card, a newly formed team, is on a mission to integrate crypto with traditional payment systems. As a Software Engineer on our team, you'll be at the forefront of developing and enhancing features that make using crypto assets outside the crypto universe seamless and intuitive.
What you’ll do
We are looking for a Software Engineer who's eager to pioneer the next wave of crypto adoption by developing innovative features for MetaMask Card and refining our current offerings.
This will include work related to the MetaMask Card offering and how we can facilitate the integration of web3 with traditional payment methods. Many of the activities we focus on are related to user experience (mobile / web / browser extension) and API integration.
You'll be responsible for developing new features and managing various partners, payment methods, and crypto assets. Your goal is to streamline the integration process while curbing the growth of technical debt. Concurrently, you'll engage in research to conceive innovative features.
Would be great if you brought this to the role
Ideal candidate
You're well-acquainted with the Ethereum ecosystem and adept at building products across mobile, web, and backend platforms. With a keen sense of user experience, you're dedicated to enhancing it at every turn.
Would be great if you brought this to the role
- 3+ years of experience as a Full Stack Software Engineer working on Production applications
- Experience with mobile development (React Native)
- Experience with web development (React)
- Experience with back-end development (Node/Express/NestJS)
- Experience working on agile projects in an Agile environment
- Experience working in CI/CD setup
- Experience working in a distributed, remote team environment
- Excellent communication skills
- Writing good technical documentation
- Located in North or South America/able to work PT or ET business hours
Bonus point for any of:
- Understanding of how traditional debit/credit card protocols work
- Understanding of the Ethereum ecosystem
- Experience with third-party integration (web views, APIs, OpenAPI specifications…)
- General interest in DevOps topics / experience with Docker and/or Kubernetes and deploying cloud infrastructure (AWS / Azure)
- Interest in streamlining and automating recurring processes
- Blockchain / smart contract development: Solidity / Ethereum, Web3.js or Ethers.js library
- Experience using or working with decentralized applications or web3 protocols
- BSc/MSc in Computer Science or related subject
Don't meet all the requirements? Don't sweat it. We’re passionate about building a diverse team of humans and as such, if you think you've got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we're ready for you to challenge our thinking on who needs to be in this role.
In the rapidly evolving Web3 space, we believe that everyone is a builder. This expansive paradigm requires a range of backgrounds, talents, skills, and experiences to influence and shape the future. At Consensys, this diversity fuels our ability to shift control and redefine the realm of possibility. We are committed to ensuring that our technology empowers people and communities with economic and political agency through decentralized technologies. We welcome the range of perspectives and differences and celebrate them. We're excited to see how your unique skills as a builder can contribute to our vision, drive innovation, and help us shape a more inclusive Web3.
Consensys is an equal opportunity employer. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law. Consensys is aware of fraudulent recruitment practices and we encourage all applicants to review our best practices to protect yourself which can be found (https://consensys.io/careers/best-practices-to-avoid-recruitment-fraud/).
Apply Now:
Echo Base is a private holding company pursuing special situation control investments in the digital assets space. Its global crypto team possesses deep experience in both the scaling of new ventures and the restructuring of complex assets. Echo Base seeks to leverage operational and technical synergies across its portfolio companies to drive innovation. Est. 2025.
The Front-end Developer is responsible for leading the design and development of user-facing applications that support Echo Base’s global P2P marketplace. This role requires deep expertise in frontend technologies, experience managing small but high-performing teams, and a hands-on approach to development. You’ll work closely with product managers, backend developers, mobile teams, and blockchain engineers to deliver high-quality, scalable, and secure web solutions.
What will you do:
- Lead the development of web-based applications using React, Typescript, and related technologies.
- Collaborate with cross-functional teams to define, design, and deliver new features aligned with the product roadmap.
- Implement best practices for frontend development, including code reviews, testing, and performance optimization.
- Mentor and guide team members, fostering a collaborative and innovative environment.
- Ensure seamless integration with backend APIs and other services, maintaining high standards for user experience.
- Manage technical debt while prioritizing scalable architecture and maintainable code.
- Build and maintain reusable components, libraries, and patterns to accelerate development across teams.
- Debug and resolve complex technical issues, ensuring the stability and performance of Echo Base’s platform.
- Collaborate with QA and DevOps teams to streamline CI/CD pipelines and improve testing coverage.
- Work with UX/UI designers to deliver pixel-perfect interfaces that meet design requirements.
Who you are:
- A hands-on leader who thrives in fast-paced environments.
- An advocate for clean code, modular design, and performance optimization.
- A collaborative communicator who enjoys solving complex challenges with cross-functional teams.
- Passionate about cryptocurrency, fintech, and the power of peer-to-peer technology.
What we are looking for:
- 5+ years of frontend development experience, including team leadership.
- Proven experience with React, Typescript, JavaScript ES6+, and state management libraries (e.g., Redux, MobX).
- Experience with integration and development of RESTful APIs.
- Expertise in optimizing frontend performance and debugging complex web applications.
- Experience with Git and CI/CD pipelines.
- Knowledge of deployment strategies and tools like GitLab CI.
- Familiarity with modern testing frameworks (e.g., Jest, Cypress).
- A solid understanding of testing strategies for frontend code.
Recommended Skills:
- Experience with mobile-friendly web development and responsive design.
- Knowledge of Web3.js or similar libraries for blockchain integration.
- Familiarity with analytics and user behavior tracking tools.
- Experience working in fintech or cryptocurrency platforms.
Apply Now:
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:
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:
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:
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.
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!
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.
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