Full Stack Engineer

As a Senior Full Stack Engineer at Nodeworthy, you build features end to end for an early-stage Web3 company creating tools that help users understand blockchain transactions and interact with digital assets safely. You work across desktop and mobile products, handling challenges involving wallets, dApps and blockchain security, with a focus on frontend work and ownership of your code after release.

What you'll do

• Build client-side features using TypeScript and React, including browser-based products.
• Develop wallet and dApp integrations across EVM-compatible chains and Solana.
• Build and maintain Node.js services and APIs.
• Improve performance, reliability and code quality across the stack.
• Contribute to the build, test and release pipeline.

What you bring

• 5+ years building production software with JavaScript and TypeScript, with a frontend focus.
• Strong understanding of JavaScript fundamentals, including the event loop, promises and async behaviour, closures, scope, prototypes, modules and bundling.
• Good knowledge of browser behaviour, HTTP and networking.
• Strong React skills and an eye for detail. You have worked with design systems and Figma, and care about component architecture, accessibility and polished interfaces.
• Experience with Node.js services, APIs, databases and queues.
• Familiarity with blockchain transactions, gas, nonces, approvals, permits and signing methods such as personal_sign and EIP-712.
• Hands-on experience with Web3 tools such as ethers or viem, wagmi, injected providers and WalletConnect.
• Comfort with CI/CD and automated testing, using GitHub Actions or similar tools.
• The ability to investigate issues using source code, specifications, debuggers, logs and monitoring.
• Clear written and spoken English, good communication habits, and the ability to take ownership in a low-process environment.
• Familiarity with current AI tools used in software development.

Nice to have

• Application security, smart contract auditing, bug bounties, CTFs or research into phishing and Web3 threats.
• Browser extension development, including Manifest V3, content scripts, service workers and extension messaging.
• Knowledge of wallet internals, EIP-1193 providers, and how to inspect transaction or signature requests.
• Experience with transaction simulation, RPC nodes, on-chain data or Solana.
• Experience building a Web3 product used by real customers, such as a wallet, dApp or developer tool.
• Experience with NestJS, PostgreSQL, Redis, BullMQ or Cloudflare Workers.
• Open-source contributions in the JavaScript or Web3 ecosystem, or experience in an early-stage startup.

What we offer

• Competitive salary and employment conditions.
• Ownership of the features and systems you build.
• The opportunity to work with an experienced engineering team.
• A fast-moving environment with a short path from idea to release.

About Nodeworthy

Nodeworthy is an early-stage Web3 company building tools that help users understand blockchain transactions and interact with digital assets safely across desktop and mobile platforms.