Senior Design System Engineer

WeDoTech; Windsor; Hybrid; GBP 92,000 - 166,000; Full time

Job summary

WeDoTech is seeking a Senior Design System Engineer to lead the architecture and evolution of reusable components inside a large-scale digital product ecosystem. You’ll shape how design and engineering collaborate to create consistent experiences across products.

You’ll build and maintain Web Components using JavaScript, HTML and CSS, ensure accessibility and semantic practices, and work closely with UX, design and engineering to translate requirements into robust solutions.

Qualifications

• Experience designing and implementing design systems at scale.
• Strong knowledge of Web Components and modern frontend technologies.
• Proven ability to translate design into robust technical solutions.

Responsibilities

• Build and evolve reusable Web Components.
• Develop components using JavaScript, HTML and CSS.
• Address complex frontend/UI problems with scalable solutions.
• Create components reusable across products and contexts.
• Prioritize accessibility, semantics and usability.
• Collaborate with UX, design and engineering teams.
• Translate design requirements into robust technical solutions.
• Maintain consistency and quality across the design system.
• Communicate technical decisions to stakeholders.
• Contribute to long-term design system direction.

Skills

JavaScript

Web Components

HTML & CSS

Design systems

Reusable components

Accessibility

Frontend engineering

UX collaboration

Cross-functional

Stakeholder management

Job description

Senior Design System Engineer

Rate: £(Apply online only) per day

Location: Windsor - 1 day per week in the office

Work Type: Contract - minimum 6 months

Role

We're looking for a Senior Design System Engineer to join a large-scale organisation and help build, evolve and maintain the components that sit at the heart of its digital products.

This isn't a standard frontend development role.

We're looking for someone who genuinely understands design systems - an engineer who cares about how components are architected, how they behave across different products and environments, and how design and engineering come together to create consistent digital experiences.

Responsibilities

You’ll be responsible for:

• Building and evolving reusable Web Components
• Developing components using JavaScript and native web technologies
• Solving complex frontend and UI problems with simple, scalable solutions
• Building components that can be reused across different products and contexts
• Considering accessibility, semantics and usability throughout development
• Working closely with UX, design and engineering teams
• Helping translate design requirements into robust technical solutions
• Maintaining consistency and quality across a wider design system
• Communicating technical decisions clearly with stakeholders
• Contributing to the longer-term direction and evolution of the design system

Required Skills

• JavaScript
• Web Components
• HTML and CSS
• Design systems and component libraries
• Reusable component architecture
• Accessibility and semantic web development
• Modern frontend engineering practices
• UX and design principles
• Cross-functional working between design and engineering
• Stakeholder management and communication

Most importantly, you'll understand why a component should be built in a particular way rather than simply being able to code it.

You should be comfortable challenging requirements, thinking through different use cases and creating solutions that are accessible, adaptable and reusable.

Why should I apply?

This is an opportunity to work on design systems at genuine scale.

Rather than building individual pages or features, you'll be working on the foundations used to create consistent digital experiences across a much wider organisation.

You'll have the autonomy to solve interesting frontend problems while working closely with engineering, UX and design.

The team is looking for a genuinely senior engineer who can combine excellent frontend development skills with design-system thinking and the confidence to work directly with stakeholders.