At Borderless Software, we believe that people drive everything we do. That's why we build a work experience designed to help you grow, enjoy what you do, and develop professionally, without bordersWe are looking for a Senior Blockchain Developer with experience who can create engaging, high-impact digital experiences. Would you like to join our team?Work Modality100% RemoteFull-timeLanguageEnglish: B2 level or higherResponsibilitiesBlockchain DevelopmentDesign, develop, and audit secure and efficient smart contracts.Implement solutions on public and/or private blockchain networks.Define security, testing, and contract deployment standards.Optimize execution costs (gas) and on-chain performance.Actively participate in technical decisions and blockchain architecture definition.Web3 & IntegrationsDesign and integrate decentralized applications (dApps).Integrate smart contracts with backend and frontend services.Work with wallets, cryptographic signatures, and key management.Design APIs and services that interact with the blockchain.Implement oracle mechanisms and off-chain data consumption.Architecture & SecurityDesign hybrid on-chain/off-chain architectures.Implement secure smart contract patterns (upgradeability, access control).Prevent common vulnerabilities (reentrancy, overflow, frontrunning).Define scalability strategies (Layer 2, sidechains, batching).What We Expect from You4–5+ years of experience in software development.2–3+ years of hands-on experience in blockchain development.Proficiency in at least one of the following languages: Solidity, Rust, Go, TypeScript, or JavaScript.Proven experience developing production-grade smart contracts.Deep knowledge of: EVM and/or alternative blockchains (Solana, Polkadot, Cosmos), applied basic cryptography, transactions, gas, consensus, and validation mechanisms.Experience with frameworks such as Hardhat, Foundry, or Truffle.Experience integrating blockchain with traditional systems (APIs, databases).Nice to HaveExperience with DeFi, NFTs, DAOs, or Web3 protocols.Knowledge of Layer 2 solutions (Optimism, Arbitrum, zk-rollups).Experience conducting smart contract audits.Knowledge of Cloud platforms (AWS, GCP, Azure).Experience with event-driven architectures and microservices.Deep understanding of SOLID principles, DDD, and Clean Architecture.Participation in open-source projects or Web3 communities.Ready to join our team? Apply now by completing the form —we'd love to meet you.J-18808-Ljbffr
...Description The primary role of the EHS Site Manager is to provide environmental, health, and safety (EHS) technical support as a resource for CentroMotions (Carlisle Brake & Friction) Medina, OH, and Solon, OH facilities. The EHS Manager will partner with site leadership...
...Job Description Job Description We are seeking a motivated and reliable Teaching Assistant to support classroom instruction and enhance the learning experience for students. The ideal candidate will work closely with the lead teacherand Early Childhood Administrator...
...Job Description Job Description Part-Time Cleaner Job Summary The Cleaner performs cleaning and general upkeep of an assigned... ...stand, walk, bend, and lift up to 25 lbs for the duration of the shift. Must be able to successfully pass a background check and...
...Director of Risk Management About the Company Multifamily company managing a large number of assets throughout the United States Industry Real Estate Type Privately Held Founded 1985 Employees 501-1000 Specialties property management...
...Now is the best time to join Johnstone Supply. As a member of the Information Technology team, the Business Systems Analystfacilitates the activities and works closely with appropriate stakeholders in the development, implementation and maintenance of on-going enterprise...