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  • Senior Blockchain Developer
    Senior Blockchain Developer
    19 hours 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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  • Level II Ultrasonic Testing (UT) Technician
    Level II Ultrasonic Testing (UT) Technician
    8 days ago
    Full-time
    Mid Island, Staten Island

    Tri-State NDT is a specialized non-destructive testing service company specializing in the inspection and testing of heating and cooling systems throughout the Tri-State area. Established in Staten Island in 1986, Tri-State's technicians utilize a variety of non-destructive testing methods, with a primary focus on Eddy Current Testing of chillers. We are seeking an experienced Level II Ultrasonic Testing (UT) Technician with hands-on Phased Array experience who can also perform Magnetic Particle Testing (MT) and Liquid Penetrant Testing (PT) as needed. Location: New York City (all five boroughs), New Jersey, and occasional assignments in Connecticut and surrounding areas Pay: $25.00-$38.00 per hour, plus overtime opportunities and annual bonus eligibility (based on experience and qualifications) Hours: Monday-Friday, 7:00 AM-3:30 PM (some seasonal overtime and occasional overnight assignments) You Need: A reliable vehicle (all approved travel expenses, including mileage, tolls, and parking, are reimbursed) Job Type: Full-Time Start Date: Immediate openings available What You'll Love About This Job Competitive compensation based on experience and qualifications Diverse field work at commercial, industrial, institutional, and infrastructure facilities Opportunities to utilize advanced NDT methods and techniques Independent work with support from an experienced technical team Exposure to a variety of structures, weld configurations, and inspection challenges Year-round work throughout the Tri-State area Opportunities to expand your technical knowledge and certifications Meaningful work that helps ensure the safety and reliability of critical systems and infrastructure What You'll Actually Do We are seeking a Level II UT Technician with hands-on experience in Phased Array inspections, as well as MT and PT examination of welds. The ideal Level II UT Technician will be within commuting distance of New York City and capable of working independently in the field while inspecting a variety of structures and welded components. You should be an independent thinker who can determine the most effective testing method for identifying flaws in various types of structures and weld configurations.

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