Treasury Manager
The role
We are looking for a Treasury Manager to lead on cash management, cash flow forecasting and treasury controls. This is a new permanent role with the opportunity to shape how we manage cash, improve treasury processes and support sound financial decision-making across the organisation.
You will create cash flow models, identify opportunities to maximise interest generation and help reduce foreign exchange risk. You will also support key banking activities, payment controls and process improvements, while managing up to two members of the finance team.
This role is ideal for someone with solid financial accounting experience who enjoys improving processes, working with detail and helping teams deliver accurate and timely outputs. Your work will directly support Energy Saving Trust to use its funds effectively and continue delivering impact towards a low carbon future.
The team
You will join our Finance, Risk and Compliance team, which supports the organisation to manage funds responsibly, strengthen financial controls and make informed decisions. The team plays an important role in helping Energy Saving Trust deliver trusted services and programmes that support people, communities and organisations to reduce carbon emissions.
What you will do
Lead cash flow forecasting, cash management and treasury reporting to support effective financial planning.
Manage deposits and identify opportunities to maximise interest generation for Energy Saving Trust and client funds.
Check and authorise payments, including supplier payments, grants, loans, credit cards and inter-account transfers.
Oversee key banking tasks, including mandates, security, compliance and ongoing process improvements.
Line manage up to two members of the finance team and support accurate, timely delivery of finance activities.
What you will bring
Experience working in a financial accounting team, with a good understanding of finance processes and controls.
Experience of cash flow management, forecasting, reporting and delivering interest generation activity.
Good interpersonal skills, with the ability to support people and manage team outputs effectively.
Excellent attention to detail and commitment to accurate, error-free work.
Confidence using finance systems and improving processes to increase accuracy and timeliness.
For more information, please see the job description
Please submit an anonymised CV and cover letter, removing your name, address, email address, and any other identifying details. Please note, applications submitted without a cover letter may be rejected.
Who we are
Energy Saving Trust is a leading and trusted organisation, dedicated to promoting energy efficiency, low carbon transport and sustainable energy use. We aim to address the climate emergency and deliver the wider benefits of clean energy as we transition to net zero.
At Energy Saving Trust we don’t just offer jobs – we offer careers. For our people, being part of the effort to address the climate emergency makes working for us truly meaningful and rewarding.
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 (subject to role requirements)
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.
Want to know more about how we make flexibility real? Check out our Benefits and Culture page
Reasonable adjustments: We want to ensure that our recruitment process is inclusive of and accessible for, everyone.
If you think you may need additional support or reasonable adjustments made to any part of the recruitment process, please get in touch with recruitment@est.org.uk or call reception on +44 (0)20 7222 0101. We will do our very best to support you.
Diversity and inclusion
Energy Saving Trust is committed to creating a diverse, inclusive and equitable workplace where everyone can be themselves, with support to be their best.
We strongly encourage applicants from a wide range of backgrounds and with different identities and experiences to apply for roles with Energy Saving Trust.
We are a Disability Confident Committed employer and we ringfence a minimum number of interview slots for candidates who apply via the Disability Confident scheme and meet the criteria for a role. Find out more here.

You can find out more about our commitment to diversity and inclusion here.
To avoid disappointment, you are advised to submit your application as soon as possible as we reserve the right to close the vacancy early if a high volume of applications are received. This is to ensure that we can manage application levels whilst maintaining a positive candidate experience. Unfortunately, once a vacancy has closed, we are unable to consider further applications
Please note, that we are unable to provide visa sponsorship for this post. To apply for this post, you must be able to demonstrate your eligibility to work in the UK
- Department
- Finance, Risk and Compliance - Finance
- Location
- Flexible UK location
- Employment type
- Full-time
- Working environment
- Flexible within the UK. Home-based, blended or fully office based (from our offices in Belfast, Cardiff, Edinburgh or London).
- End date
- 01 November, 2026
- Intended interview dates, either week commencing or exact date (please note, this is subject to change)
- 09 November, 2026
- Salary information
- Up to £55,000 per annum (maximum salary). The starting salary will be determined based on relevant skills, experience and qualifications.
- Working pattern
- Full time (37.5 hours a week)
Life at Energy Saving Trust
We’re all about creating a workplace where you can thrive. Diversity isn’t just something we talk about, it’s part of who we are. We welcome different perspectives, celebrate individuality, and believe that everyone should feel they belong here.
Learn more about our EDI commitment
We also know life isn’t one-size-fits-all. That’s why we offer flexible working, remote options, and great benefits designed to support your work-life balance. From generous leave to wellbeing perks, we’ve got you covered.
Explore our benefits
About Energy Saving Trust
Energy Saving Trust is an independent organisation, working to address the climate emergency.
A respected and trusted voice on energy efficiency and clean energy solutions, we continue to work towards a smart, decarbonised, decentralised energy system.
You can find out more on our official website
For more environmental jobs see environmentjob.co.uk