Front End Engineer React UI/UX AI Full Time NEW

Infused Solutions Ltd
Front End Engineer React UI/UX AI

Day Rate: 350- 450 per day
Contract: 3-6 months
IR35 Status: Outside IR35
Location: Fully Remote (UK) – Occasional London Office Visits

About the Role

I’m working with an exciting, fast-growing AI start-up looking for a talented Front End Engineer to help build and shape its core product.
We’re looking for someone with 5+ years of commercial experience, strong React and TypeScript skills, and a genuine passion for UI/UX and building exceptional user experiences.
This is an opportunity to join an ambitious start-up at an exciting stage of its growth, working closely with the founders and engineering team to turn complex AI capabilities into intuitive, engaging and user-friendly applications.
You’ll have significant ownership over the front-end development, influence product decisions and play a key role in shaping the user experience from the ground up.
The position is fully remote across the UK, with only occasional visits to the London office required.

Key Responsibilities

• Design, develop and maintain high-quality front-end applications using React and TypeScript.
• Build intuitive, responsive and visually engaging user interfaces.
• Translate product requirements and design concepts into seamless user experiences.
• Work directly with founders and engineers to shape product features and technical direction.
• Integrate front-end applications with APIs, AI services and backend systems.
• Help make complex AI functionality accessible through clean, intuitive UI/UX.
• Contribute to front-end architecture, reusable components and coding standards.
• Optimise application performance, accessibility and responsiveness.
• Take ownership of features from concept through to delivery.
• Work in a fast-paced start-up environment where ideas evolve quickly and engineering input is valued.

Essential Technical Skills

• Strong commercial experience with React.
• Excellent knowledge of TypeScript and JavaScript.
• Strong HTML5 and CSS3 skills.
• Experience building responsive, modern web applications.
• Solid understanding of UI/UX principles and user-centred design.
• Experience integrating REST APIs and third-party services.
• Familiarity with Git and modern front-end development workflows.
• Experience building maintainable and scalable front-end applications.

Desirable Experience

• Experience working with AI-powered products or SaaS platforms.
• Familiarity with Large Language Models (LLMs) and generative AI.
• Experience integrating OpenAI, Anthropic Claude or similar AI APIs.
• Experience with Next.js.
• Familiarity with modern UI frameworks and component libraries.
• Previous experience in a start-up or early-stage product team.
• Exposure to AI-assisted development tools and rapid prototyping.

The Ideal Candidate

You’ll be a hands-on engineer who combines strong technical skills with a keen eye for design and usability. You’re comfortable working autonomously, taking ownership and collaborating directly with founders to turn ideas into high-quality products.
You’ll thrive in a start-up environment where innovation, flexibility and initiative are valued, and where your contribution will have a direct impact on the product.

Interested?

If you’re a React-focused Front End Engineer who enjoys building innovative products at the intersection of AI, UI/UX and modern web development, I’d love to hear from you.
Key Skills: React TypeScript JavaScript UI/UX AI/LLMs REST APIs SaaS Product Engineering
350- 450 per day Outside IR35 3-6 Month Contract Fully Remote UK Occasional London Visits