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Senior Frontend Developer

Senior Frontend Developer

Hybrid

London, United kingdom

£ 135,000 /year

Senior

Full Time

05-10-2025

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Skills

TypeScript HTML CSS Figma CI/CD git react AWS

Job Specifications

Senior Frontend Developer (React) - Series A GenAI Security Scale-up

Salary: PS120,000 - PS135,000 (DOE) + equity + benefits

Hybrid: 2 days/week in Central London office (Kings Cross/Covent Garden area)

A Series A, high-growth cybersecurity scale-up (~40 employees) is looking for a Senior React Engineer to join their mission of helping companies adopt Generative AI safely and securely. They are building a developer-first platform that enables data protection without complexity - redefining security for the GenAI era.

This is a rare chance to join at a pivotal time as they scale their infrastructure across regions, including a full US AWS deployment. You'll be joining a small but highly capable engineering team where your impact will be significant from day one.

They are looking for a Senior React Engineer with the following:

Senior hands-on React experience in a product-focused SME
Strong design skills and background with TypeScript, HTML and CSS
Ability to work independently and own projects
Background in fast-paced environments - scale-ups or consultancies preferred
A passion for solving complex UX/UI challenges
Nice to have: experience with Figma and component-based design systems (Storybook)

Tech: React, TypeScript, Figma, Storybook, Git, CI/CD

You'll work closely with a highly technical Senior React Engineer to strengthen and scale their high-performance web applications. If you're excited about working in a collaborative team, rolling up your sleeves in an early-stage environment and building the backbone of a secure, GenAI-first platform - this one's for you.

Apply now to learn more

About the Company

The Understanding Recruitment Universe Understanding Recruitment is the go-to destination for technology recruitment with headquarters in St. Albans, England. Specialising in Biotechnology, Artificial Intelligence, and Web3, our team of over 90 recruiters is adept in navigating the dynamic landscapes of Blockchain & Cryptocurrency, Java, JavaScript, Python, Rust, Golang, .NET, DevOps, Product Management, and other tech roles within the Software Development Lifecycle. As your total talent solution partner, we seamlessly con... Know more