Senior Design Engineer: End-to-End UI for Clean Energy

Payaca Ltd.; West of England; Hybrid; GBP 70,000 - 95,000; Full time

Benefits offered by this job

33 days holiday

Regular team away-days and socials

Free breakfast and snacks

Free on-site gym

Job summary

Payaca Ltd. in Bristol is seeking a Senior Design Engineer to own how our product looks and feels in a medium that ships. You’ll focus on the design system, visual consistency, and user interaction for installers and office staff.

You’ll work with product engineers, designers, and AI agents to ship high‑quality, repeat‑use software across web and mobile. Office‑first, Bristol-based with fast decision cycles and collaboration.

Qualifications

• 4+ years shipping production frontend using TypeScript, React and CSS.
• Proven design system ownership from concept to production.
• Experience collaborating with designers and engineers, using AI tools when appropriate.

Responsibilities

• Take hardest design problems end to end: shape the problem, design, build, ship, and measure impact.
• Grow and mature the design system for desktop, mobile, and offline patterns.
• Raise the floor on quality across flows and enable cross‑team collaboration.
• Design for varied usage: desktop web, mobile web, and offline-first mobile.
• Collaborate with product engineers on the screens being built.
• Leverage agents to handle repetitive work, focusing your time on judgment.
• Set and uphold patterns and quality through review and hands‑on work.
• Partner with AI tooling to accelerate delivery while maintaining ownership.

Skills

Frontend shipping

TypeScript

React

CSS

Visual design

AI tooling

Figma

Design system

Tools

Figma

Claude Code

GitHub Copilot

Job description

Payaca Ltd. in Bristol is seeking a Senior Design Engineer to own how our product looks and feels in a medium that ships. You’ll focus on the design system, visual consistency, and user interaction for installers and office staff.

You’ll work with product engineers, designers, and AI agents to ship high‑quality, repeat‑use software across web and mobile. Office‑first, Bristol-based with fast decision cycles and collaboration.