Senior Fullstack Software Engineer

Company Overview:

Legitimate connects physical products to digital experiences that extend customers’ relationship with the most culturally relevant brands. Leveraging near-field communication technology (NFC) and blockchain infrastructure, Legitimate has enabled world-renowned brands and companies to create compelling connected products that help brands secure product authenticity and extend digital experiences to physical product and merchandise. Some of the brands and companies that trust Legitimate include PUMA, Adidas, ROC Nation, San Francisco 49ers, and more.

Position Overview:

As a Full Stack Engineer, you will play a pivotal role in designing and implementing user interfaces, architecting systems for both consumer facing applications and B2B tooling. You are a self starter who likes to initiative, and will collaborate closely with our cross-functional team to deliver seamless and intuitive user experiences in Web2 and Web3. Our team is small and everyone makes an outsized impact in the company.

Our staff is currently spread between North America and Asia. This position is remote and meetings are regularly scheduled in the US and Japan time zones. Flexibility in meeting hours will be required. Travel is also required a few times a year for onboarding, in-person planning sessions, and conferences

• User Interface Development: Design and implement user interfaces for B2B and consumer applications, ensuring a responsive and visually appealing user experience.
• Cross-Browser Compatibility: Ensure compatibility across different browsers and devices to deliver a consistent user experience.
• User Feedback Integration: Collaborate with the product & design team to incorporate user feedback and continuously iterate on the user interface for optimal user satisfaction.
• Systems Architecture: Improve the speed, reliability, and usability of our Legitimate platform while minimizing cost and complexity. Balance decentralization and on-chain transactions with conventional frontends and backends for optimal performance and scalability.
• Web3 and Smart Contract Integration: Integrate smart contracts and blockchain functionality into the frontend and backend, providing both our business users and their customers with seamless on-chain transactions while abstracting the complexity of blockchain

• Experience: Minimum of 5 years of experience in software development, with a focus on frontend and solidity smart contracts.
• Technical Proficiency: Mastery in JavaScript, HTML, CSS, and experience with the React framework and related tooling. Experience with Node.js, Express, Ruby on Rails, and other backend frameworks is a plus.
• UI/UX: Understanding of user interface design principles and a strong eye for detail.
• Adaptability: Ability to adapt to a fast-paced startup environment and quickly learn and apply new technologies.
• Collaboration: Strong collaboration and communication skills, comfortable working in a cross-functional team with tight deadlines.
• Blockchain Interest: Curiosity around or familiarity with blockchain technologies, smart contracts, and decentralized applications (DApps).

• Decentralized Identity: Implement decentralized identity solutions to enhance user privacy and security.
• Web3 Security: Implement best practices for secure frontend and backend development in the context of decentralized applications.
• Web3 Tools: Experience with Web3 libraries (e.g., Web3.js, ethers.js, Wagmi) and familiarity with blockchain wallet integrations such as WalletConnect.

• Our frontend applications use a mix of React and Next.js
• Our backend applications are built on a mix of Ruby on Rails and Node.js
• Our web3 usage consists of Solidity contracts running on EVM compatible chains such as Avalanche, Polygon, and Ethereum.
• Our NFC tag programming apps are built with Electron for Mac and Windows, and React Native for iOS.