Head of Product (Flex)

Head of Product

• Location: London (Hybrid Office - 3+ days per week)
• Salary: £112,000 - £140,000
• Team: Product (Flex)
• Level: HoD

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.

About 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, 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 you’ll do

As Head of Product for Flex, you own the vision, strategy and commercial success of our residential VPP platform globally. You lead a product organisation of Product Managers embedded across our device integration, optimisation, monetisation and SaaS platform teams, and you sit on the Flex Leadership team alongside our Head of Engineering, jointly accountable for the performance of the whole Flex business. Specifically, you will:

• Set and own the global product strategy for Flex, translating Kaluza's company-level strategy into a roadmap spanning device integrations, multi-asset optimisation (EV, battery, solar, HEMS), monetisation and market access, and self-serve SaaS capabilities.
• Build and lead a high-performing product organisation - hiring, developing and retaining Product Managers of all levels, and identifying and growing the next generation of product leaders within Flex.
• Make the trade-off calls that matter: balance the needs of our two core client segments - energy retailers and device OEMs - defaulting to retailer priorities where they conflict, in line with Flex's strategy, while protecting the long-term health of the platform.
• Partner closely with the Head of Engineering and our Commercial and Partnerships teams to align product, technical and commercial strategy, and to make resourcing and investment decisions across Flex's product and engineering teams.
• Define annual goals and OKRs for Flex, aligned to Kaluza's company strategy, and hold your organisation accountable for delivering measurable commercial and platform-quality outcomes.
• Be the client-facing expert for Flex product: lead demos and pitches for prospective retailer and OEM clients, contribute to proposals and pricing, and represent Flex's product practice at Kaluza-wide and industry forums.
• Own the long-term roadmap narrative - kept current, accessible, and able to be told confidently to prospects and clients two years out - as well as internally to engineering, design, partnerships and commercial teams.
• Build and maintain your network with Product, Partnership, Engineering and Commercial leaders across Kaluza, ensuring insight from Flex feeds into - and benefits from - the wider Kaluza product strategy.
• Champion product craft and ways of working across Flex, raising the bar for discovery, prioritisation and measurable impact, in a fast-moving, resource-constrained environment where judgement on trade-offs matters as much as vision.

What you’ll bring

Ideally you’ll have/be

• Be a proven, experienced product leader with a track record of building, leading and developing product teams and people managers, not just individual contributors.
• Be a seasoned expert in product strategy and execution across the full product lifecycle, with a track record of translating ambiguous, complex problems into a clear strategy and roadmap.
• Have strong commercial instincts - comfortable owning pricing input, business cases and ROI, and able to demonstrate commercial impact and business growth through your teams.
• Be an excellent communicator, able to present complex, ambiguous problems clearly and persuasively to technical and non-technical audiences, from engineers to clients to Kaluza's leadership team.
• Have deep experience with, or a genuine ability to quickly get up to speed in, complex multi-sided B2B / B2B2C technology platforms - direct experience in energy, DER orchestration, IoT device platforms or smart devices is a strong plus.
• Be comfortable operating with high ambiguity, making the call yourself where appropriate and knowing when to escalate, in a fast-paced and frequently changing environment.
• Have a track record of fostering a strong product culture and coaching others - including peers without being their formal manager - to raise the standard of product work around them.
• Be data-driven in how you measure impact, and able to hold yourself and your teams accountable to outcomes, not just outputs.

What will set you apart

• Experience in energy trading, national and regional flexibility markets, or other VPP monetisation opportunity spaces (e.g. balancing markets, capacity markets, wholesale/imbalance trading, ancillary services).
• Direct experience with VPPs, EV/battery smart charging, HEMS, or residential demand-flexibility products.
• Familiarity with UK and/or international energy market mechanics (e.g. BSC, NEM, market settlement, DER integration standards).
• Experience selling or supporting the sale of platform/SaaS propositions to enterprise clients.

Where 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.

Our Values

Five values guide how we work at Kaluza:

• 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.

Our 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
• Climate: 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.