Head of Internal Communications

Job title: Head of Internal Communications 

Location: London/Bristol - Hybrid 

Team: Internal Comms

Reporting To: Chief Growth Officer

Closing date for applications: Monday 16th February 2026

This role is based in London or Bristol and requires an existing right to work in the UK.

At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship.

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.

At Kaluza we embrace a flexible, hybrid work model that balances autonomy with the power of in-person connection. Many of our teams find value in coming together regularly to collaborate, strengthen relationships, and accelerate progress. We’re focused on shaping thoughtful, team-driven approaches that support both business impact and individual well-being.

What will I be doing?

Kaluza is a global Climate Tech business. As our Head of Internal Communications, you are the architect of our internal culture. Your mission is to bridge the gap between our complex technical strategy and our global workforce, ensuring every employee - from London to Tokyo is aligned - informed, and inspired by our mission.

This is a senior role for a “ Strategic Connector”. You will sit at the intersection of the Growth, People, and Executive teams, turning high-level strategy into a cohesive internal narrative. We need a strategist who also loves to build – someone who can design a global comms framework on Monday and draft a compelling company-wide keynote on Tuesday.

Your key responsibilities will include: 

• Strategic Narrative: Partner with the Executive Team to translate company strategy and technical milestones into human-centric internal narratives.
• Next-Gen Channels: Lead the evolution of our internal ecosystem. You will identify and deploy modern platforms that move beyond traditional intranets to foster real-time, global engagement.
• AI Integration: Actively explore and implement AI and AGI tools to streamline workflows, personalise internal messaging, and gain deeper insights into employee sentiment.
• Global Engagement: Lead the end-to-end communication strategy for company milestones, wellness, and recognition, ensuring initiatives resonate across diverse international time zones.
• People & Culture Partnership: Work hand-in-hand with the People Team to scale employer brand advocacy and reinforce a culture of recognition.
• Operational Excellence: Own the internal comms calendar and budget. Establish data-driven frameworks to measure channel effectiveness and drive continuous improvement.
• Unified Global Voice: Work in lockstep with the External Comms and Marketing teams to ensure our internal and external stories are seamless. You will ensure that what we say to the world is lived and understood by our people.
• People Leadership: Lead and mentor a high-performing team. You are a natural people manager who creates an environment of high accountability, growth, and psychological safety.

About You 

You are a creative, senior-level communicator who knows how to make the complicated easy to understand. You bring a hands-on approach and are happy to roll up your sleeves to turn a vision into a finished product.

Ideally you’ll have/be:

• 8+ Years Experience: Proven track record in senior internal or corporate communications roles, ideally within a high-growth tech or SaaS environment.
• High Vision, High Execution: A creative writer and strategic thinker who can "cut through the noise" and present complex information via sophisticated slide decks and narratives.
• Exceptional People Manager: You have a reputation for building and upskilling teams. You are as invested in your team's development as you are in the company's mission.
• Future-Proof Mindset: A proactive curiosity about how emerging technologies can transform internal connectivity. You don’t just manage channels; you reinvent them.
• Executive Presence: Comfortable advising the Executive Team and acting as a trusted partner to the Chief Growth Officer.
• Technical Aptitude: Tech-native with a hunger for learning. You are comfortable navigating and implementing new tools, from AI-driven content platforms to modern community hubs.

• Alignment: Employee engagement data shows a deep understanding of Kaluza’s mission and strategy across all regions.
• Innovation: Successful implementation of AI tools or new platforms that measurably improve comms efficiency or reach.
• Cultural Impact: Delivery of high-impact engagement campaigns (Values Awards, Milestones) that reinforce our employer brand.
• Operational Clarity: A structured, predictable internal comms rhythm that reduces noise and increases clarity for all staff.

Kaluza Values

Here at Kaluza we have five core values that guide us as a business: 

We’re on a mission, We build together, We’re inclusive, We get it done, We communicate with purpose.

From us you’ll get

• Pension Scheme
• Discretionary Bonus Scheme
• Private Medical Insurance + Virtual GP
• Life Assurance
• Access to Furthr - a Climate Action app
• Free Mortgage Advice and Eye Tests
• Perks at Work - access to thousands of retail discounts
• 5% Flex Fund to spend on the benefits you want most
• 26 days holiday

• Flexible bank holidays, giving you an additional 8 days which you can choose to take whenever you like

• Progressive leave policies with no qualifying service periods, including 26 weeks full pay if you have a new addition to your family 
• Dedicated personal learning and home office budgets
• And more…

We want the best people

We’re keen to meet people from all walks of life — our view is that the more inclusive we are, the better our work will be. We want to build teams which represent a variety of experiences, perspectives and skills, and we recognise talent on the basis of merit and potential.

We understand some people may not apply for jobs unless they tick every box. But if you're excited about joining us and think you have some of what we're looking for, even if you're not 100% sure, we'd still love to hear from you.

Find out more about working in Kaluza on our careers page and LinkedIn.
You can also find our Applicant Data Protection Policy here.