Henry Jackson Society
Finance & Operations Assistant
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The Henry Jackson Society (HJS)
The Henry Jackson Society (HJS) is a think tank and policy-shaping force which fights for the principles and alliances which keep societies free – working across borders and party lines to combat extremism, advance democracy and real human rights, to make a stand in an increasingly uncertain world.
The Role
The Finance and Operations Assistant will play an important role in ensuring the efficient day-to-day operation of the organisation. Working alongside the Chief Operating Officer, the successful candidate will provide administrative support across finance, governance, human resources, procurement, facilities and organisational operations.
This is an excellent opportunity for someone looking to build a career in finance, operations or charity management within a fast-paced and intellectually stimulating environment.
The Responsibilities
Your duties will include, but are not limited to:
Finance
- Process purchase invoices, supplier payments and expenses.
- Raise sales invoices and monitor outstanding payments.
- Assist with bank reconciliations and maintain accurate financial records.
- Support monthly management accounts preparation.
- Maintain finance spreadsheets, bookkeeping, cash flow and accounting systems.
- Assist with budget monitoring and expenditure reporting.
- Support the preparation of year-end accounts and external audits.
- Maintain financial filing systems and supporting documentation.
- Process corporate credit card reconciliations.
- Liaise with suppliers regarding invoices and payment queries.
- Support grant and project financial reporting where required.
- Ensure compliance with internal financial controls and policies.
- Support the Director of Development with essential administration tasks.
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Operations
- Be the lead on all HJS physical and online events – working closely with the (but ultimately having responsibility for) Research and Communications Departments to ensure smooth and successful delivery of the events.
- Support the day-to-day running of the office, including overseeing facilities and office supplies.
- Support the COO with overseeing and maintaining the research pipeline working closely with the Director of Communications and Director of Research.
- Work with the COO to maintain organisational policies, procedures and operational documentation.
- Support health and safety compliance and office risk assessments.
- Help organise internal meetings, events and board meetings.
- Maintain organisational records and filing systems.
- Support business continuity planning and operational resilience.
Governance and Compliance
- Assist with Board and Committee administration.
- Maintain governance records and statutory filings.
- Support GDPR compliance and records management.
- Assist with organisational policy reviews.
- Support compliance with Charity Commission and Companies House requirements (where applicable).
Other responsibilities
- Support the COO to monitor KPIs, introducing clear metrics for monitoring output and impact month on month.
- Support where required the delivery of events and conferences.
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Person Specification
The ideal candidate will be an enthusiastic individual who is excited to join a new team who are working hard to take The Henry Jackson Society to the next level. Someone who is highly motivated, energetic and understands the need for intuitive improvisation as well as careful planning. We are looking for someone who has:
Experience / Knowledge Essential
- Experience using accounting software (e.g. Xero, Sage, QuickBooks or similar).
- Experience using Salesforce (or a similar CRM).
- Experience in an administrative, finance (bookkeeping) and operations support role(s).
- Excellent organisational and time management skills.
- High level of accuracy and attention to detail.
- Strong numerical and analytical skills.
- Good understanding of financial administration processes.
- Proficiency in Microsoft Office, particularly Excel.
- Excellent written and verbal communication skills.
- Ability to manage multiple priorities and meet deadlines.
- Strong interpersonal skills with the ability to work collaboratively.
- Ability to handle confidential information with discretion.
Experience / Knowledge Desirable
- AAT qualification or working towards an accounting qualification.
- Knowledge of UK charity governance and compliance.
- Experience working within a charity, not-for-profit organisation or think tank.
Salary
£28,000 - £32,000 (dependent on experience)
Closing Date
31st July 2026
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