Senior Full Stack Javascript Engineer

Hacker Typer; United Kingdom; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading Web3 communications protocol company in the United Kingdom is seeking an engineer for frontend development focused on the Reown Dashboard and AppKit. This role demands proficiency in React/Next.js and TypeScript, with opportunities for backend development. Join a high-performing team, driving feature delivery in fast-paced environment with significant impact on developer experience across the Web3 ecosystem.

Qualifications

• Experience in frontend development with React/Next.js.
• Proficiency in TypeScript and serverless development.
• Strong understanding of automated testing and CI/CD pipelines.

Responsibilities

• Own delivery for new features across Reown Dashboard and Reown AppKit.
• Collaborate with Product and Design to build new developer experiences.
• Monitor and optimize production systems for performance.

Skills

React

TypeScript

Cloudflare Workers

UI Design

Collaboration

Tools

Grafana

Sentry

Job description

WalletConnect is the de facto web3 communications protocol enabling interoperability between wallets and dapps across blockchains. What began as a single API now facilitates millions of messages and secure connections every month, powering the backbone of the decentralized web.

Today, we’re expanding our suite of SDKs and tools — including Reown AppKit, Reown Dashboard, Web3Wallet, and Web3Inbox — with a mission to empower developers to build the next generation of engaging, scalable Web3 experiences and onboard the next 100 million users into crypto.

We’ve raised $25M from leading investors including Union Square Ventures, 1kx, Shopify, Coinbase Ventures, Circle Ventures, and Uniswap Labs. Founded in 2018 by Pedro Gomes, we’re a global, remote-first company that values openness, simplicity, ownership, and impact.

The Role

You’ll take ownership of end-to-end delivery for our Reown Dashboard (our customer-facing control panel) and Reown AppKit (the SDK powering developer integrations). The role has a frontend-heavy focus (≈60% React/Next.js) while contributing to backend development (≈40%) using TypeScript and serverless runtimes like Cloudflare Workers.

You’ll be joining a high-performing, senior engineering team where autonomy, craftsmanship, and collaboration are key. This is a great opportunity for someone who thrives in a fast-moving, product-driven environment and enjoys working across the stack — from UI to API — to deliver developer-facing products used across the Web3 ecosystem.

Why This Role

This role suits an engineer who enjoys shipping quickly and seeing their work used by thousands of developers. You’ll work on a production-level dashboard and SDK that powers integrations across the entire Web3 ecosystem — from small builders to major dapps.

You’ll have ownership over feature delivery from ideation to deployment. Every engineer at WalletConnect writes technical design docs, contributes to architecture, and helps define best practices — it’s a place where your technical voice genuinely matters.

Responsibilities

• Own delivery for new features across Reown Dashboard and Reown AppKit, contributing both to UI and SDK logic.
• Partner with Product and Design to conceptualize, scope, and build new experiences for developers integrating WalletConnect.
• Build and maintain frontend SDKs and component libraries in TypeScript (framework-agnostic where appropriate) with clear APIs, strong documentation, and great DX.
• Extend and optimize Cloudflare Worker–based APIs, as well as other serverless endpoints powering our products.
• Translate Figma designs into accessible, performant, and reusable React/Next.js components.
• Ensure reliability and quality through type-safe code, automated testing (unit/e2e), and CI/CD pipelines.
• Monitor, debug, and optimize production systems using Grafana, Sentry, and related tools.
• Drive performance optimizations — tree-shaking, code-splitting, bundle-size reduction, and build-time improvements.
• Collaborate cross-functionally, writing technical design docs and reviewing peers’ work to maintain high engineering standards.