Web3 Full-Stack Developer

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🔥 9 minutes ago

🌐 Romania, Cyprus – Remote

🇷🇴 Romania – Remote 🇨🇾 Cyprus – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

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Olinio Ltd

WebsiteLinkedInAll Job Openings

1 - 10 employees

Founded 2022

🎯 Recruiter

🤝 B2B

Recruitment • B2B

Olinio Ltd is a corporate services and recruitment firm that helps companies operating in Cyprus find the right talent and access structured business support. The company matches candidates to roles across on-site, hybrid, and remote work models, and offers specialist services through a network of partners including compliance and AML support, HR assistance, and business development guidance. Olinio positions itself as a B2B provider focused on optimizing client organizations through tailored recruitment, employee development, and operational support.

📋 Description

• Participate in designing the overall system architecture • Design and implement backend services and database schema • Develop REST APIs • Implement business logic • Design and implement smart contracts • Integrate blockchain infrastructure • Integrate fiat payment provider (PSP) • Implement background workers and queues • Deploy and maintain development environments • Participate in technical decision making • Contribute to project architecture and system analysis • Build NFT Collection Factory management • Develop ERC-721 and ERC-1155 smart contracts • Build NFT image generation pipelines • Build NFT minting and purchasing pipelines • Integrate asset storage APIs for admin- and user-facing panels • Implement order management and payment processing • Develop blockchain workers • Build production-ready backend architecture

🎯 Requirements

• Experience with web3 projects, especially NFT projects and the ERC-721 standard • Strong TypeScript experience • Solid Node.js or NextJS backend development experience • Experience designing scalable REST APIs • Experience with queue-based architectures • Knowledge of PostgreSQL, Docker, Git, Solidity, smart contract deployment, and the Ethereum ecosystem • Technical understanding of blockchain, wallets, transactions, smart contracts, and token standards • Backend skills: Node.js, NestJS or similar, TypeScript, PostgreSQL, Prisma ORM or similar, Redis, RabbitMQ, BullMQ or similar, IPFS/CDN • Blockchain skills: Solidity, ERC-721, ERC-1155, OpenZeppelin, viem/ethers, Hardhat or Foundry • Infrastructure skills: Docker, GitHub Actions, Linux • Frontend skills: React, Next.js or similar, TailwindCSS, TypeScript, wagmi, RainbowKit, web3.js, TanStack Query • Nice to have: Fintech experience, payment provider integrations, ERC-1155 experience, Pinata or similar IPFS/CDN experience, AI image-generation pipeline experience, and frontend JavaScript framework experience

🏖️ Benefits

• Flexible working hours • Competitive compensation package • Possibility of extending collaboration for future projects • For office work: Weekly lunch • For office work: Snacks and beverages in the office • For office work: Central location office • Full time or Part time schedule