Senior Frontend Engineer at Magentic

✨ The Stack take on this Magentic job

• 🏢 This is Magentic's only job here right now
• 🛂 Skilled Worker visa. Standard minimum salary: £41,700 a year guide
• 💡 No salary shown. Ask Magentic if it is above the minimum.

Updated 2026-11-03, from our data and official sources.

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About the role

Responsibilities:
- Own design and delivery of high-quality, production frontend experiences from concept to release.
- Define and evolve frontend architecture, patterns and engineering practices as the product and team scale.
- Improve code quality, performance, testing and maintainability; mentor engineers and lead technical reviews.
- Work directly with users, Product and Design to simplify complex AI/agent workflows and shape interaction patterns.
- Integrate LLM/AI capabilities into UI flows, ensuring reliability, responsiveness and clear UX for enterprise users.

Requirements:
- 10+ years professional software engineering experience with strong TypeScript/JavaScript and React expertise.
- Demonstrated frontend architecture experience and a track record of improving engineering practices and design systems.
- Familiarity building products that leverage LLMs or AI technologies and translating AI behavior into usable interfaces.
- Comfortable in an early-stage, high-ownership environment: quick decision-making, cross-functional communication and product focus.
- Bonus: experience with scalable design systems, data-heavy enterprise products, Python backend familiarity, or supply-chain domain knowledge.

Responsibilities

You will own the development of high-quality user-facing experiences and drive the frontend architecture as the product scales. You will also collaborate with product, design, and engineering teams to build intuitive interfaces for complex AI-powered workflows.

Requirements

Candidates must have 10+ years of professional software engineering experience with significant expertise in TypeScript, JavaScript, and React. Strong frontend architecture experience and familiarity with AI or LLM-powered products are essential for this role.

Key skills

• Typescript — in 462 other listings on The Stack
• Javascript — in 140 other listings on The Stack
• React — in 274 other listings on The Stack
• Frontend architecture — in 16 other listings on The Stack
• LLMs — in 77 other listings on The Stack
• AI technologies — in 4 other listings on The Stack
• Software engineering — in 194 other listings on The Stack
• Interaction design — not in any other listing on The Stack
• Design systems
• Python
• Code quality
• Performance testing
• Maintainability
• Product development
• Technical leadership

On The Stack (as of 2026-11-03)

• This is Magentic's only listing on The Stack.
• 209 visa-sponsored jobs in the United Kingdom on The Stack, posted in the last 60 days.

Frequently asked questions about Magentic

Is this Senior Frontend Engineer role still open?

It was posted on 2026-09-02. Listings more than 30 days old may no longer be active, so check Magentic's site before applying.

Does Magentic offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Magentic's site.

Where is this role located?

The listing gives the location as United Kingdom. It is marked on-site.

What skills does this role ask for?

The listing names: Typescript, Javascript, React, Frontend architecture, LLMs, AI technologies, Software engineering, Interaction design, Design systems, Python, Code quality, Performance testing, Maintainability, Product development, Technical leadership.