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  • Senior Blockchain Developer
    Senior Blockchain Developer
    4 days ago
    $240000–$280000 yearly
    Full-time
    Manhattan, New York

    Senior Blockchain Developer Remote | Full-Time | $240,000–$280,000 USD Build the Future of Web3 Are you passionate about blockchain technology and excited by the opportunity to build products that can transform industries? We're looking for a Senior Blockchain Developer to join our growing team and help create next-generation solutions across Web3, digital assets, tokenized real estate, decentralized finance (DeFi), and smart contract infrastructure. This is more than just another engineering role. You'll have the opportunity to shape technical strategy, influence product direction, and work on innovative projects that push the boundaries of blockchain technology. If you're a builder, problem solver, and blockchain enthusiast who thrives in a fast-paced environment, we'd love to hear from you. Responsibilities • Design, develop, test, and deploy secure smart contracts on Ethereum and EVM-compatible blockchains., • Build and maintain scalable decentralized applications (dApps) and Web3 platforms., • Develop backend services, APIs, and blockchain integrations using Node.js and TypeScript., • Collaborate with product managers, designers, and engineers to deliver high-quality features and products., • Architect blockchain solutions that prioritize scalability, security, and performance., • Conduct code reviews and provide technical mentorship to junior and mid-level developers., • Integrate wallets, token standards, payment systems, and third-party blockchain services., • Monitor, troubleshoot, and optimize production blockchain applications., • Implement security best practices and participate in smart contract audits and risk assessments., • Improve development workflows, CI/CD pipelines, testing frameworks, and deployment processes., • Research emerging blockchain technologies and evaluate new tools, protocols, and frameworks., • Contribute to technical documentation, architecture planning, and engineering standards., • Participate in technical discussions and help drive long-term product and technology strategy., • Work closely with cross-functional teams to ensure successful product launches and ongoing improvements. Required Qualifications • 5+ years of professional software engineering experience., • 3+ years of hands-on blockchain development experience., • Strong expertise in Solidity and Ethereum smart contract development., • Experience building production-grade applications using React, TypeScript, and Node.js., • Strong understanding of blockchain architecture, decentralized systems, and Web3 technologies., • Experience with ethers.js, viem, wagmi, or similar Web3 libraries., • Knowledge of token standards including ERC-20, ERC-721, and ERC-1155., • Experience with REST APIs, GraphQL, databases, and cloud infrastructure., • Strong understanding of software design patterns and scalable architecture., • Excellent problem-solving, communication, and collaboration skills. Nice-to-Have Qualifications • Experience building DeFi, NFT, RWA, or tokenization platforms., • Familiarity with Layer 2 scaling solutions and cross-chain technologies., • Experience conducting or supporting smart contract security audits., • Knowledge of AWS, Docker, Kubernetes, and infrastructure automation., • Experience working in startups or high-growth technology companies., • Open-source contributions within the blockchain ecosystem.

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  • Operations Coordinator
    Operations Coordinator
    5 days ago
    $20 hourly
    Full-time
    Manhattan, New York

    ENTRY-LEVEL SUPPORT ROLE AVAILABLE FOR 26-27 SCHOOL YEAR - NO PRIOR EXPERIENCE NEEDED About the Role Basic Office Support: • Greet and check-in visitors following school security protocols, ensuring all guests are properly signed in and receive visitor badges., • Coordinate with teachers and staff to deliver requested supplies from the main office to classrooms or workrooms as needed., • Monitor and restock frequently used office supplies, such as paper, pens, and forms (i.e. MAFs), to maintain a functional work environment., • Assist with digital filing and organizing important documents, ensuring that records are easily accessible and kept in the proper locations. Supporting Attendance Tracking: • Assist with daily attendance processes, ensuring accurate record-keeping and reporting as directed by the BOM., • Ensure arrival is set up each day (i.e.: stanchions, CAASS machines in place)., • Support at arrival by monitoring our CAASS scholar attendance scan-in system and escalating issues as needed. Assisting with Technology, Supply, and Inventory Management: • Check supply levels in the Teacher Work Room (TWR) daily and restock essential items (e.g., paper, pens, markers, snacks) to ensure teachers have the materials needed., • Carry and deliver scholar snacks throughout the school building as scheduled., • Monitor and document inventory levels regularly, noting when supplies are running low and informing the BOM to reorder as needed., • Respond promptly to teacher requests for specific supplies, • Troubleshoot basic scholar Chromebook issues and understand the system for distributing new technology, escalating more complex issues to the BOM or IT support. Facilities Support: • Conduct routine facility checks of the school building as directed by the BOM. (Building Operations Manager), • Ensure rapid acknowledgment of facilities slackbot issues and escalate them to the appropriate personnel (BOM or facilities team) according to established protocols., • Walk through hallways, classrooms, restrooms, and common areas, ensuring they are clean, safe, and free of hazards. General Support During Arrival & Dismissal: • Serve as extra support by being present and observant during arrival and dismissal times, while adhering to the guideline of not assuming any leadership and/or scholar management responsibilities., • Aid in recording tardy arrivals or early dismissals, ensuring that accurate records are kept and communicating any issues to the BOM., • Direct students, families, and staff to designated areas, helping manage foot traffic to keep arrival and dismissal processes efficient. Qualifications • 0-2 years of professional experience in an administrative or support role preferred., • High school diploma or equivalent required; Associate's or Bachelor's degree preferred., • Adaptable and flexible to a fast-paced environment., • Positive and proactive attitude with a strong work ethic., • Strong organizational skills and attention to detail., • Ability to follow instructions and complete tasks efficiently., • Basic computer skills and comfort with technology., • Good verbal communication skills., • Ability to work independently and as part of a team., • Eagerness to learn and contribute to the smooth operation of the school. Please submit your application if you are interested.

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  • Software Engineer
    Software Engineer
    1 month ago
    $20–$30 hourly
    Full-time
    Hackensack

    About the Job As a Software Engineer specializing in React.js and TypeScript, you will be a key member of our engineering team, responsible for building modern, responsive, and user-friendly web applications. Your primary focus will be developing high-quality user interfaces that deliver exceptional user experiences while collaborating closely with backend developers, designers, and product managers. We are looking for someone who is passionate about clean code, performance optimization, and creating intuitive digital products using the latest frontend technologies. Responsibilities * Design and develop modern web applications using React.js, TypeScript, and JavaScript (ES6+) * Build reusable, maintainable, and scalable UI components * Translate UI/UX designs into high-quality, responsive interfaces * Collaborate with backend developers to integrate RESTful APIs and third-party services * Optimize applications for speed, accessibility, and cross-browser compatibility * Identify and resolve bugs, performance bottlenecks, and usability issues * Participate in code reviews, technical discussions, and sprint planning * Write clean, well-documented, and testable code following best practices * Stay up to date with emerging frontend technologies and contribute innovative ideas * Utilize AI-powered development tools to improve productivity and code quality Requirements * 3+ years of professional experience with React.js * Strong proficiency in TypeScript, JavaScript (ES6+), HTML5, and CSS3 * Experience with state management libraries such as Redux, Zustand, or Context API * Familiarity with RESTful APIs and asynchronous data handling * Experience using Git and collaborative development workflows * Understanding of responsive design and mobile-first development * Knowledge of frontend performance optimization techniques * Strong problem-solving and debugging skills * Ability to work effectively in a remote and collaborative environment * Good written and verbal English communication skills Nice to Have * Experience with Next.js * Familiarity with Tailwind CSS, Material UI, Ant Design, or similar UI frameworks * Experience with testing frameworks such as Jest, Vitest, or Cypress * Knowledge of GraphQL and WebSockets * Experience with Vite, Webpack, or other modern build tools * Familiarity with Docker and CI/CD pipelines * Experience working in SaaS, startup, or fast-growing technology companies * Bachelor's degree in Computer Science, Software Engineering, or a related field What We Offer * Competitive salary based on experience * Fully remote work environment * Flexible working hours * Opportunity to work with modern technologies and AI-assisted development tools * Professional growth through challenging international projects * Collaborative and supportive engineering culture * Long-term career development opportunities

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