Senior Front-End Engineer – DeFi/Web3 Startup

JR United Kingdom; City Of London; Hybrid; GBP 150,000; Full time

Job summary

A leading Web3 startup is seeking a Senior Front-End Engineer to shape their innovative product offering. You will architect scalable front-ends for AI tools and set UI/UX standards, working closely with design and product teams. This position offers an exciting opportunity to influence the engineering culture from an early stage in the company’s journey.

Qualifications

• 6+ years of experience building secure, responsive web apps.
• Deep knowledge of ReactJS and modern state management.
• Strong eye for design and seamless user experience.

Responsibilities

• Architect and build slick, scalable front-ends for AI-driven tools.
• Define UI/UX standards and lead the frontend tech stack.
• Collaborate closely with product and design to ship fast and smart.

Skills

HTML5

CSS3

TypeScript

ReactJS

Redux

Zustand

Job description

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Senior Front-End Engineer – DeFi/Web3 Startup, london (city of london)

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Client:

DATAHEAD

Location:

london (city of london), United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

6

Posted:

26.06.2025

Expiry Date:

10.08.2025

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Job Description:

Senior Front-End Engineer – DeFi/Web3 Startup

Location: Hybrid (2–3 days/week in London)

Salary: Up to £150,000 + Equity

Type: Full-Time, Permanent

Join one of the most exciting early-stage Web3 startups on the market.

As the first Senior Front-End Engineer, you will"

• Architect and build slick, scalable front-ends for AI-driven tools
• Define UI/UX standards and lead the frontend tech stack
• Own key components, libraries and interfaces across the platform
• Collaborate closely with product and design to ship fast and smart
• Get hands-on with backend APIs and sockets when needed
• Help shape engineering culture, mentor others, and drive quality

What You’ll Bring

• 6+ years of experience building secure, responsive web apps (HTML5, CSS3, TypeScript)
• Deep knowledge of ReactJS and modern state management (Redux, Zustand, etc.)
• A strong eye for design and seamless user experience
• Comfort in ambiguity and rapid prototyping
• Curiosity about full-stack and real-time (socket-heavy) environments
• Passion for DeFi, Web3, or building cutting-edge developer tools

This is a rare opportunity to get in early and shape the future!