Assistant Bid Manager

• Fixed term maternity contract until 16 May 2027 / Full time (37.5 hours)
• Flexible within the UK. Home-based, blended or fully office based (from our offices in Belfast, Cardiff, Edinburgh or London)
• Closing date: 10 March 2026
• Intended interview dates, either week commencing or exact date (please note, this is subject to change) 23 March 2026

As an Assistant Bid Manager, you’ll support the Business and Market Development team to deliver high quality, compliant bids that help secure revenue and grow Energy Saving Trust’s impact. You’ll assist the Strategic Bid Manager across the full bid lifecycle, identifying and tracking new opportunities, maintaining accurate pipeline records, and coordinating bid content, reviews and sign off processes.

You’ll help shape strong bid responses, support commercial inputs, and ensure stakeholders are well briefed and aligned. A key part of your role is maintaining our central content hub, keeping case studies, CVs, templates and key company information up to date so the team can work efficiently. You’ll also build confidence using our core digital tools (Click Up, Teams, SharePoint, Contracts Advance and Salesforce) to improve collaboration and ways of working.

This varied, hands on role offers a clear growth path: within six months, you’ll progress from supporting individual bid tasks to confidently coordinating full end to end bid delivery while helping strengthen processes and boost bid quality.

The team

You’ll join our Business and Market Development department, working closely with a small, friendly and highly collaborative Bid team. We bring together people from across the organisation to create strong, competitive bids that drive meaningful impact. We’re organised, supportive, and always looking for better ways to work. Sharing ideas, improving processes, and celebrating wins together. It’s a great place to learn, grow and build your career in bid management.

What you will do

Spot and shape new opportunities

• You’ll monitor and manage our opportunity pipeline, identifying the tenders and frameworks that matter.
• Ensuring the right people are engaged at the right time.

Coordinate compelling, compliant bids

• From structuring content to supporting pricing, timelines, reviews, and approvals, you’ll help drive bids forward with clarity and confidence.

Champion brilliant bid content

• You’ll develop and maintain our content hub-the case studies, templates, CVs and company information that help us tell our story consistently and persuasively.

Make us smarter and faster

• You’ll help us get the most from our tools (Click Up, Teams, SharePoint, Contracts Advance, Salesforce), finding better ways to collaborate, plan, and deliver.

What you will bring

• Experience contributing to winning bids or proposals, or clear transferable skills from roles involving writing, coordination or project support.
• Excellent written communication, with strong attention to detail and a natural ability to organise information.
• A proactive, collaborative mindset- you enjoy helping things run smoothly and supporting colleagues to succeed.
• Confidence managing multiple tasks and deadlines, with strong admin and organisational skills.
• Comfortable using Microsoft Office, especially Word, Excel and Teams.

Work where you thrive

At Energy Saving Trust, flexibility isn’t just a policy, it’s how we work. Most of our roles can be done remotely, and many of our people choose to work from home full-time. Prefer an office environment? We have welcoming spaces in London, Edinburgh, Belfast, Cardiff and Hadleigh for those who want to connect in person.

We’ll support you with:

• Generous holiday (25 days + bank holidays + extra Christmas leave)
• True flexibility in how and where you work
• Strong pension & life assurance
• Enhanced family leave
• Green travel perks (EV scheme, cycle to work)
• Professional development support
• Yearly wellbeing allowance

These are just some of the benefits we offer.

To Apply

Please submit an anonymised CV and cover letter, removing your name, address, email address, and any other identifying…