Junior UX Engineer

Yellow Sub AI Group; City Of London; Hybrid; GBP 30,000 - 40,000; Full time

Job summary

A technology company in the UK is seeking a Junior UX Engineer to design and develop user experiences. This full-time hybrid role requires strong web development skills and an understanding of UX principles. Candidates should be detail-oriented and eager to collaborate with cross-functional teams on innovative projects, contributing to intuitive digital applications.

Qualifications

• Strong foundation in web development languages and frameworks.
• Familiar with data visualization and UX design principles.
• Effective communication and collaboration skills.

Responsibilities

• Develop intuitive, data-driven user experiences.
• Build responsive front-end interfaces and dashboards.
• Collaborate on visualizing real-time data streams.

Skills

HTML, CSS, and JavaScript (ES6+)

React, Next.js, or similar frameworks

Data visualisation tools (Chart.js, D3.js, etc.)

UX principles, accessibility, and responsive design

Git and collaborative development workflows

Emerging technologies (Rust, WebAssembly)

Education

Bachelor's degree in Computer Science, Design, HCI

Job description

Company Description

Yellow Sub AI Group unites cutting-edge technology companies dedicated to building systems that will shape the future. The Group specialises in critical areas, including movement intelligence, next-generation communications, sustainable energy solutions, and predictive security. By fostering an ecosystem of innovation, Yellow Sub AI Group enhances resilience, awareness, and performance across industries. The mission is to connect and protect the world, driving a safer, smarter, and more sustainable future.

Role Description

This is a full‑time hybrid role for a Junior UX Engineer, based in Bedford, UK.

As part of the product and engineering team, you will collaborate on designing and developing intuitive, data‑driven user experiences for technologies within Yellow Sub AI Group. Daily tasks include building responsive front‑end interfaces and dashboards, refining visual designs, and applying user experience principles across digital applications.

You will work closely with backend and hardware teams to visualise live data streams – including real‑time movement analytics and IoT sensor outputs – ensuring complex information is displayed in a clear and engaging way. The role also involves contributing to design systems, reusable UI components, and optimising performance across platforms.

You’ll assist in user testing, participate in UX reviews, and help evolve design flows based on feedback. We’re looking for someone curious, detail‑oriented, and proactive – someone who enjoys experimenting, prototyping, and bringing clean, functional design to life.

Qualifications

Core Skills

• Strong foundation in HTML, CSS, and JavaScript (ES6+)
• Experience with React, Next.js, or similar frameworks (or willingness to learn)
• Familiarity with data visualisation tools (Chart.js, D3.js, Toast UI, etc.)
• Understanding of UX principles, accessibility, and responsive design
• Experience with Git and collaborative development workflows
• Curiosity about emerging technologies like Rust, WebAssembly, or AI‑driven interfaces

Preferred Background

• Bachelor’s degree in Computer Science, Design, Human–Computer Interaction, or a related field
• Strong visual design sensibility and attention to detail
• Excellent communication and collaboration skills in a team‑oriented environment