Head of Communications & Engagement (12-Month Maternity FTC)

Location: London or Bristol, UK - Hybrid

Salary: £96,000 - £120,000 (HOD)

Team: People

Reporting To: VP Talent

This role is based in London or Bristol, UK 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.

What will I be doing?

• Direct and execute Kaluza’s internal communications and employee engagement strategy, ensuring multi-market alignment across global teams and offices.
• Line manage, mentor, and empower a team of (Communications Manager) to deliver high-quality messaging, events, and campaigns.
• Partner directly with the Executive Leadership Team (ELT) and C-suite to craft high-impact executive communications, strategic business updates, and change management announcements.
• Serve as primary owner and strategic lead for Kaluza’s intranet platform, The Hive, establishing content standards, governance, and user engagement strategies to maximize platform adoption.
• Lead end-to-end planning and delivery of company-wide events, Town Halls, and interactive employee initiatives that strengthen culture and mission alignment.
• Manage our European office locations; Edinburgh, London, Bristol and Paris, leading on the global workplace strategy and engagement activities that create a safe and exciting place to work.

About You

Ideally you'll have/be:

• Strategic communications leadership experience in a fast-paced technology, scale-up, or SaaS business.
• Proven line management experience with a track record of coaching team members and driving departmental output.
• Extensive experience acting as a trusted advisor to senior executives and C-suite leaders on internal communications and strategic messaging.
• Hands-on expertise managing modern intranet ecosystems (specifically Simplr or similar enterprise digital workplace platforms).
• Exceptional narrative creation, copywriting, and editing skills with high attention to tone of voice and brand consistency.

What will set you apart:

• Experience maintaining strategy continuity and leading a communications function during a fixed-term cover / maternity cover period.
• Strong interest or prior domain background in green energy, clean tech, or sustainability software.
• Previous experience working with or leading a Workplace function
• Demonstrated ability using analytics tools and employee feedback data to continuously evolve communication channels.

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.

Kaluza Values

Here at Kaluza we have five core values that guide us as a business: Play to win, Solve the real problem, Build trust every day, Own the outcome, Go further together.

Our Perks

• 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 Policy - With no qualifying service periods, including 26 weeks full pay if you have a new addition to your family
• Personal Learning Budget - Upskill, learn and grow!
• Home Office Budget
• 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 .