Senior Proposals Executive

Overview

Reporting to:
Proposal Manager

Closing date for applications:
Monday 16 February 2026

This role is based in London or Bristol and requires 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.

Job title:

Senior Proposal Executive

Location:

London/Bristol - Hybrid

Salary: £56,000 - £70,000

Team:
Commercial Operations

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. We’re focused on shaping thoughtful, team-driven approaches that support both business impact and individual well-being.

As Senior Proposal Executive in a growing team, you’ll have an exciting opportunity to help shape and embed processes. Supporting the Proposal Manager, your efforts will drive efficiency, improve quality, and deliver to the business a high performing proposals function where your contributions will be recognised.

Your key responsibilities will broadly include:

• Leading the end-to-end proposal response process, particularly for high value and strategic opportunities, including writing, editing, and coordinating responses to RFPs and RFIs.
• Collaborating with cross-functional teams – including sales, pre-sales, product, engineering and other business functions – to respond to live queries and proactively develop evolving content.
• Peer-reviewing colleagues’ drafts.
• Developing deep product knowledge over time, to translate complex information into clear, persuasive, and client-focused content.
• Ensuring compliance with proposal guidelines by reviewing submission requirements, tracking deadlines, and delivering polished, on-brand proposals consistently.
• Being a driving force in managing and maintaining the Loopio content library, working with SMEs to ensure content remains accurate and reliable, and taking ownership and content specialism of assigned sections.

Ideally you’ll be…

• Technically minded and detail oriented, with the ability to write clearly and effectively.
• Highly experienced in the proposal management space.
• Extremely organised personally, and strong at keeping others focused and organised around a project, often in the face of competing priorities.
• Clear, confident and able to collaborate effectively with subject-matter experts.
• Self-driven, resourceful, and enthusiastic about developing specialised technical and company-specific knowledge (and content).

• Energy, SaaS, or technology experience.
• The ability to maintain quality in a fast-paced environment.
• A flexible approach in the face of shifting priorities.
• A focus on continuous process improvement – and the ideas and energy to make it happen.
• Proficiency – or the motivation to rapidly become proficient – with proposal management tools (we use Loopio) and Google Workspace for document creation and organisation.
• Fluency in Japanese would be of interest (but is not a key requirement).

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. Read more about our values over on our careers site.

• Pension Scheme
• Discretionary Bonus…