Senior Full-Stack Engineer — AI-Native, High-Traffic Web

Bullish, Inc.; United Kingdom; On-site; GBP 110,000 - 150,000; Full time

Job summary

CoinDesk is seeking a senior software engineer to lead the Media Engineering team. You will own end-to-end features across web, mobile apps, and services using Next.js, React, Node.js, and TypeScript, with a focus on performance, reliability, and security.

You will set technical direction, mentor teammates, and collaborate with product managers and newsroom partners to ship impactful data-rich experiences. Responsibilities include architecture, deployment stewardship, and building with modern

Qualifications

• Lead-level track record with ownership of at least one high-traffic production system.
• Deep expertise across modern web and backend technologies including React/Next.js/Node.js.
• Strong performance tuning, SSR, and caching to optimize Core Web Vitals.

Responsibilities

• Own complex features end-to-end from concept to production.
• Set technical direction, architectural standards, and engineering excellence.
• Mentor engineers, conduct code reviews, and eliminate knowledge silos.
• Collaborate with product, design, and newsroom partners for scoping and delivery.
• Architect and ship features across web, mobile apps, and services stack.

Skills

Leadership

React

Next.js

Node.js

TypeScript

REST APIs

CMS platforms

Tools

Playwright

Maestro

LaunchDarkly

CI/CD pipelines

Job description

CoinDesk is seeking a senior software engineer to lead the Media Engineering team. You will own end-to-end features across web, mobile apps, and services using Next.js, React, Node.js, and TypeScript, with a focus on performance, reliability, and security.

You will set technical direction, mentor teammates, and collaborate with product managers and newsroom partners to ship impactful data-rich experiences. Responsibilities include architecture, deployment stewardship, and building with modern