Accounts Assistant

The International Hydropower Association (IHA) is a non-profit international membership organisation, whose mission is to deliver renewable energy systems, freshwater management, and climate change solutions by advancing sustainable hydropower.

Our 100+ members include developers, operators and manufacturers worldwide and our partners include research institutions, non-governmental organisations, governments, financial institutions and development agencies. The IHA Board comprises of influential industry representatives, a former head of government and a leading former United Nations diplomat.

The role

We are recruiting a detail-oriented and organised individual to join our team as an Accounts Assistant. You’ll play a key role in supporting the day-to-day finance and administrative operations. Reporting to the Senior Finance and Operations Manager you’ll also work closely with internal teams and international stakeholders.

The role also requires supporting the day-to-day financial tasks for the Global Solar Council (GSC) a member of the Global Renewables Alliances (GRA) of which, IHA is a member. There is also scope that the role may also include financial responsibility for another GRA member.

This is a great opportunity to grow your finance career and gain exposure to international markets. Currently the role is part time but over time this may become a full-time role with additional responsibilities.

Key tasks:

• Accurately code and process invoices in a timely manner ensuring compliance with company policies and procedures.
• Input financial data into the accounting system with a high level of accuracy.
• Update and maintain Purchase and Sales ledgers.
• Review and process employee expense claims verifying adherence to company policies.
• Raise invoices and manage debtor accounts. Follow up on outstanding payments and resolve any payment discrepancies.
• Reconcile bank statements and control accounts identifying and rectifying any discrepancies.
• Communicate effectively with external parties to resolve financial queries or discrepancies.
• Prepare and set up payment runs on the bank account.
• Assist with monthly management accounts process.
• Support the year-end audit process.
• Manage the shared finance inboxes and provide general administrative support as needed to Senior Finance and Operations Manager.
• Assist in maintaining a well-organised and efficient office environment.
• Deal with ad hoc requests as required by Senior Finance and Operations Manager or wider management team.

Essential skills and attributes

• Proven experience in a comparable role.
• Solid understanding of basic financial principles – studying towards or completed AAT qualification or similar an advantage.
• Previous experience with accounting software. Knowledge of Xero an advantage.
• Strong data entry skills and good attention to detail.
• Willingness to learn and a proactive approach to managing various financial tasks.
• Excellent communication and interpersonal skills.
• Good working knowledge of Microsoft office products, especially a proficiency in Excel (formulas and pivot tables).
• Ability to work independently and collaboratively within a team.

Contract: Permanent, part-time: 3 days a week/ 22.5hrs (flexible)

Location: Canary Wharf, London / hybrid (Tuesday and Thursday in office)

Remuneration: £28,900 - £31,200 pro-rata, per annum based on experience

Closing date for applications: 15 February 2026 (note applications will be considered as we receive them, so early application is recommended).

Start date: ASAP

Application

If you have the appropriate skills and experience for this role, we would like to hear from you. Please send your CV and a cover letter explaining how your skills and attributes align with the role (applications without a cover letter will not be considered). These documents should be sent by email to: recruitment@hydropower.org.

Throughout the selection process, we are absolutely committed to providing equal opportunities for everyone, regardless of their gender, sexual orientation, origin, or disability.  We value diversity and lived experience, and we strive to create an inclusive and supportive work environment where all employees feel respected and supported in reaching their full potential.

We cannot always contact all applicants if there is a large volume of applications. If you do not hear from us within 20 days of the ad closing, please assume that you have been unsuccessful on this occasion.

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