Web3 Full-Stack Developer

5 days ago


Singapore AI SEER PTE. LTD. Full time

Web3 Full-Stack Developer Full Time, Mid-Level, Hybrid About Role We are seeking a Web3 Full-Stack Developer with strong AI alignment principles to take the lead in building and scaling our Web3 infrastructure. You will set the technical direction, build end-to-end Web3 systems, and guide best practices across backend, smart contracts, and frontend integrations. Working closely with our AI engineering team, you will ensure everything we deploy aligns with our broader AI safety and truth-focused mission. In this role, you will: Design, build, and deploy Python-based microservices (Flask, FastAPI, AWS Lambda) that aggregate data from Web3 APIs. Write, test, and deploy Solidity smart contracts for tokens, governance, and automation. Develop Web3-enabled frontends with React/Next.js and TypeScript that integrate wallets, contracts, and APIs. Implement wallet connectivity (WalletConnect, MetaMask), transaction signing, and blockchain event listening. Build automated airdrop systems with eligibility validation, anti-bot protection, and fraud prevention. Embed robust security checks into every stage of the stack, from backend to smart contracts to frontend. Collaborate with AI engineers to align Web3 systems with AI safety and truth-focused outputs. Monitor and optimize performance, scalability, and cost efficiency across services. Stay updated on Web3 trends, emerging protocols, and new blockchain technologies to propose innovative solutions. Integrate dApps and mini apps with blockchain networks (e.g., Base), wallets (e.g., MetaMask, World App, WalletConnect), and decentralized protocols (e.g., IPFS, The Graph). You might thrive in this role, if you have: 4+ years of full-stack development experience, with at least 1+ years in Web3 or blockchain development Strong proficiency in Python (Flask, FastAPI optional) and AWS serverless architectures. Experience with React/Next.js and TypeScript for building modern dApps. Hands-on Solidity expertise, with experience deploying and testing contracts (Hardhat/Foundry). Familiarity with Ethereum and EVM-compatible chains, and token standards (ERC-20, ERC-721, ERC-1155)Proficiency with ethers.js/web3.js, wagmi, or similar libraries for contract and wallet interactions. Experience working with Web3 APIs (Alchemy, Infura, Moralis, The Graph) and building indexers. Familiarity with CI/CD pipelines, Docker, automated testing, and monitoring tools. Understanding of RESTful APIs, GraphQL, and microservices architecture It will be a bonus, if you have: Experience contributing to AI-safety-aligned or trust-infrastructure projects. Knowledge of DeFi protocols, on-chain analytics, or cross-chain solutions. Familiarity with decentralized identity frameworks (DIDs, verifiable credentials, soulbound tokens). Experience deploying dApps on decentralized hosting (IPFS, Arweave). Experience in leading technical teams. About AI Seer AI Seer is a truth-seeking company, founded in December 2019, dedicated to building tools that foster transparent, source-backed conversations and uncover hidden truths in our noisy physical and digital world. Our mission is to make truth discoverable and reliable by empowering people to fact-check, uncover hidden truths, and make informed decisions. ArAIstotle, our truth-seeking agent, launched on Virtuals with 658% oversubscription and 16,083 participants to pioneer crypto's truth layer. We've developed innovations at the frontier of AI and truth technologies, including the Multi-Spectral Reality Detector (MSRD), an AI-powered, contactless deception detector, and Facticity AI, a real-time fact-checking platform. Building on these, we're pioneering the next frontier: a Virtual Reality Detector agent that combines the strengths of both systems to push the boundaries of truth-seeking across centralized, decentralized, and immersive worlds. AI Seer is backed by investor Tim Draper and has been recognized as one of TIME's Best Inventions 2024 and Top 5 Finalist at the SuperAI Genesis Startup Competition, milestones that reflect our commitment to innovation and impact. We believe trust and accountability are the cornerstones of the digital age. In a world where everyone searches for answers online, who is verifying them for you?Why Join Us?At AI Seer, you'll help shape the future of truth technologies at the cutting edge of AI, Web3 and immersive innovation. Your ideas will make a real impact as we work to uncover hidden truths and restore trust in a noisy world. Together we are building more than products. We are creating a culture of curiosity, creativity and progress. #J-18808-Ljbffr



  • Singapore Hyphen Connect Full time

    We are hiring for one of our ecosystem projects in Web3. As a Web3 Full Stack Developer, you will design, develop, and maintain decentralized applications (dApps) and blockchain-based systems. You will work across the full stack, from smart contract development to front-end interfaces, collaborating with cross-functional teams to deliver secure, scalable,...

  • Web3 Full Stack

    5 days ago


    Singapore Pundi X Full time

    Web3 Full Stack & Smart Contract Developer Get AI-powered advice on this job and more exclusive features. Founded in 2017, Pundi X delivers web3 and AI technology to build a more secure and inclusive world. Headquartered in Singapore, we are honored to be listed among the top 50 most intriguing emerging Fintech Startups by KPMG in 2018, cool vendors in...


  • Singapore AI SEER PTE. LTD. Full time

    A pioneering technology company in Singapore is seeking a Web3 Full-Stack Developer to lead the development of innovative Web3 systems. The role involves designing Python microservices, deploying Solidity smart contracts, and building dApps with React and TypeScript. The ideal candidate will have extensive experience in full-stack development, especially...

  • Full Stack Developer

    2 weeks ago


    Singapore ScienTec Consulting Full time

    **We are looking for Full Stack Developer to join one of the Government agency!** - **Opportunity to involve in a large scale citizen facing project**: - **Great career progression and friendly working environment**: - **Yearly renewable contract with attractive salary/benefits**: - **Working location: Central**: - **Working hours: MON-FRI office...


  • Singapore Vega Solutions Full time

    **About Us** Vega Solutions is Singapore-based solutions consulting firm centred on providing innovative yet customized blockchain & web3-focused solutions to our partners across every facet of their business. We aim to provide a holistic approach that enable successful businesses achieve their best potential in the most creative, efficient, and conscious...


  • Singapore stakefish Full time

    As our Web3 / Full-stack Software Engineer, you will be designing, developing, and deploying software solutions that power various products at stake.fish. In this role, you will work closely with a group of talented engineers, product managers, and UX designers to build the next generation of staking products. Your work will help with securing a wide range...


  • Singapore NODEWORTHY PTE. LTD. Full time

    Location Remote About The Company Our client is a decentralized, multi-chain structured-products protocol focused on developing next-generation RFQ architecture to power a wide range of options products across multiple protocols. They are committed to delivering secure, scalable, and innovative DeFi solutions, leveraging AI-driven tooling to enhance user...

  • Full Stack Developer

    4 hours ago


    Singapore NODEWORTHY PTE. LTD. Full time

    Location: Remote About The Company: Our client is a decentralized, multi-chain structured-products protocol focused on developing next-generation RFQ architecture to power a wide range of options products across multiple protocols. They are committed to delivering secure, scalable, and innovative DeFi solutions, leveraging AI-driven tooling to enhance user...


  • Singapore Ngage4Good Full time

    Ngage4Good is an innovative platform leveraging Web3 and trailblazing Web5 to engage everyone in fun ways to make the world a better place! Join us in this exciting journey, there is a lot to do! We are looking for a CTO / Full stack senior developer **Responsibilities** Partner with our visionary CEO to define, prioritize and develop our MVP product...


  • Singapore Hyphen Connect Full time

    Senior Full Stack Engineer (Web3/AI /Mandarin Speaking) We are hiring for one of our ecosystem projects, an innovative AI and Web3 company building an Ethereum Layer 2 solution integrated with advanced AI agents. As the first engineer dedicated to this initiative, you will play a pivotal role in its development, with potential opportunities to build and lead...