Design System Lead

01Design System Lead

Location: Bristol/London, UK (hybrid, three days a week in the office) Team: UX Contract: Permanent Reporting To: Head of UX

Please note: This role requires an existing right to work in the UK. We can’t offer visa sponsorship, but we review sponsorship role by role, so keep an eye on our careers site for future opportunities

02About Kaluza

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, 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.

03What you’ll do

• Shape the future of the design system and the global Agent Experience product as an equal partner to engineering, product, and delivery

• Create and deliver the design strategy for the system in direct partnership with the engineering lead, holding joint accountability for its direction

• Set and uphold the design and UX quality bar across every contribution, including accessibility, comfortable challenging engineers and designers alike, and being challenged in return

• Run the contribution process end to end, so teams beyond our own can propose, design, and ship into the system, from first proposal through to full adoption

• Design, prototype, and ship components yourself, including using AI-assisted tools to move from Figma to production code, built to WCAG 2.2 AA from the start

• Coach and develop the designers and engineers who build with the system, raising the bar for how people use and contribute to it

• Represent the design system to stakeholders across the business, advocating for its value and shaping how the wider company understands and invests in it

• Champion good design and accessibility thinking in architecture and technical decisions, working alongside senior engineering leaders as a peer

What you’ll bring Ideally you’ll have/be

• Deep experience designing, building, and evolving a design system at scale, tokens, component APIs, documentation, and governance

• Strong design and UX judgement, starting from the user, with genuine comfort challenging and being challenged by engineers and other designers

• Practical knowledge of WCAG 2.2 AA accessibility standards, with real empathy for designing for users with accessibility needs, not just compliance

• Confidence working in code, using AI-assisted tools to take a component from design intent through to shipped reality

• Experience running a contribution or change process across multiple teams or apps, from proposal to full migration

• A track record setting and delivering technical and design strategy jointly with engineering, iteratively, through genuine ambiguity, not from a finished plan

• Strong communication skills, able to hold your opinions loosely, and to raise what matters even when it’s inconvenient, across engineering, product, and the wider business

• Experience mentoring, coaching, and developing other designers

• A bias to action, comfortable building momentum in the face of real uncertainty

04Where you'll work

We offer flexible working, with an expectation of 3 days a week in the office. This gives us the best of both: real time together to collaborate and build relationships, with the flexibility to work in the way that suits you best the rest of the week.

05Our Values

• Play to win: Collective pride in decarbonising energy at scale.

• Solve the real problem: Cutting through complexity to focus on real-world outcomes.

• Build trust every day: Consistency, transparency and doing what we say.

• Own the outcome: Full accountability, wins and setbacks, without ego.

• Go further together: Collaboration, respect and different perspectives.

06Our Perks

• Time off and family: 26 days’ holiday, plus 26 weeks’ full pay for new parents with no qualifying service period

• Health and security: Private medical insurance with virtual GP, life assurance, pension scheme, free mortgage advice and eye tests

• Pay and flexibility: Discretionary bonus, a Flex Fund of 5% [of salary] to spend on the benefits you want most, retail discounts through Perks at Work

• Growth and setup: Personal learning budget, home office budget

07Climate: Furthr, our climate action app Come as you are

We want to meet people from all walks of life. The more inclusive we are, the better our work will be, and we recognise talent on merit and potential. If you’re excited about the role but don’t tick every box, we’d still love to hear from you.

Find out more on our careers page and LinkedIn. Our Applicant Data Protection Policy is here (kaluza.com).

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