Lead Engineer - Front End & Design System

Kaluza; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

Kaluza is the Energy Intelligence Platform turning energy complexity into seamless coordination. You will be embedded in the Customer Care team as the design system technical expert, turning design intent into accessible, production-ready React components.

Work with designers and engineers to shape the global Agent Experience and Nebula design system, build reusable patterns, review code, and contribute to design-to-code workflows.

Qualifications

• Design system and front-end delivery responsibilities as described in the job text.

Responsibilities

• Working in a product development team with internal users to steer the enterprise design system.
• Collaborating with designers as equal partners to shape the global Agent Experience product and the design system.
• Designing, building and shipping React components and patterns that conform to WCAG 2.2 AA.
• Reviewing code from colleagues and setting the quality bar for design fidelity and accessibility.
• Making the design-to-code workflow work with design tokens, handoff and component documentation.
• Running the contribution process so teams beyond our own can propose, build and ship into the design system.
• Creating and delivering against the technical strategy for the team.

Skills

React

Design system

WCAG AA

Frontend architecture

Job description

Tech Specialist (Front-end & Design System) TL1

• Location: London, UK - Hybrid
• Team: Global Engineering - Commerce & Customer Care
• Visa: This role is based in the UK and requires existing right to work in the UK.

Kaluza Overview

Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today’s challenges while accelerating the shift to a clean, electrified future.

Our platform orchestrates millions of real-time decisions across homes, devices, markets and grids. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable, affordable and adaptive to everyday life.

With teams across Europe, North America, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen.

What will I be doing?

You will be fully embedded in the Customer Care org, specifically working on KAE (Kaluza Agent Experience) which is integral to building and enabling an energy specific agent product for servicing customers across multiple channels and the enterprise design system (Nebula) that will enable the next phase of scale for Kaluza. You will be the design system technical expert for the team and the hands‑on bridge between design and engineering, turning design intent into accessible, production-quality React components and patterns, bolstering the existing team members with specific technical depth in building and scaling design systems across internal teams. You will work with designers as equal partners.

Key responsibilities include:

• Working in a product development team with internal users to understand emerging and existing needs to steer the development of the enterprise design system, and supporting the teams who build with it
• Working closely with designers as equal partners, and with product and engineering, to help shape the future of the global Agent Experience product and the design system
• Designing, building and shipping React components and patterns that conform to WCAG 2.2 AA to help the team meet their delivery goals
• Reviewing code from your colleagues, including contributions from outside the team, and setting the quality bar for design fidelity and accessibility
• Making the design-to-code workflow work in practice, including design tokens, handoff and component documentation
• Running the contribution process so that teams beyond our own can propose, build and ship into the design system, and leading changes that affect several apps from first proposal to final migration
• Creating and delivering against the technical strategy for your team