Interim Financial Accountant

At ITRS, we make society's critical technology work. Our mission is to deliver automated and holistic IT observability solutions that safeguard critical applications and enable innovation. We are the only monitoring and observability platform designed for the most demanding and regulated industries — trusted by 90% of Tier 1 capital markets firms.

We believe when our team thrives, so do our customers. With us, you'll find:

• A culture that backs you – We're proud to be a Great Place to Work for multiple years in a row due to our inclusive, supportive environment.

• Work that matters – Make a real difference with 1,000s of global customers in industries that keep the world running, including 9 out of 10 top investment banks.

• Room to grow – Whether you're starting your career or bringing years of experience, we're committed to your development. Just ask our team members who've been excelling here for 10+ years.

With headquarters in London and teams across the US, Europe, and Asia, ITRS combines the agility of a high-impact tech business with the stability of a private equity–backed global partner.

We are looking for a recently qualified Chartered Accountant (ACA, ACCA, or equivalent) to join our Finance team on a fixed-term contract basis. This is a hands-on role providing short-term capacity support at a critical point in the Finance calendar. You will work closely with the finance leaderships and CFO, contributing directly to the year-end audit process and ongoing month-end reporting cycle.

This is an excellent opportunity for someone early in their post-qualification career who wants meaningful exposure to a PE-backed SaaS business and the breadth of a lean, high-performing finance function.

External Audit Support

• Prepare audit schedules and supporting workpapers to agreed timelines and presentation standards

• Pull sample populations and compile evidence packages in response to auditor requests

• Investigate and clearly document balance sheet and P&L variances raised during the audit process

• Liaise directly with the external audit team to resolve queries efficiently and minimise disruption to the wider Finance team

Month-End Close

• Prepare and post prepayment and accrual journals with appropriate supporting documentation

• Perform month-end balance sheet reconciliations across assigned account areas

• Contribute to P&L and balance sheet analytical reviews, providing clear commentary on movements versus prior month and budget

• Support the timely close of the ledger in line with the month-end timetable

Treasury & Cash Forecasting

• Maintain and update the rolling 13-week cash flow forecast, incorporating actuals, confirmed payments, and near-term commitments

• Assist with day-to-day treasury administration and cash position monitoring as required

Ad Hoc & Stakeholder Support

• Respond to queries from external accountants, tax advisers, and other professional advisers in a timely and professional manner

• Provide ad hoc analysis and financial information in support of Finance leadership as needs arise

• Newly or recently qualified ACA, ACCA, or equivalent (Big 4 or mid-tier practice background preferred) 

• Strong double-entry and technical accounting grounding 

• Proven experience preparing audit schedules and working with external auditors 

• Comfortable with high-volume transactional detail as well as analytical review 

• Advanced Excel skills; able to work with large data sets confidently 

• Highly organised with strong attention to detail and the ability to manage competing deadlines 

• Experience with international groups 

Desirable 

• Experience in or exposure to a software, technology, or subscription-based business 

• Familiarity with Salesforce-native ERP systems (e.g. Certinia / FinancialForce) 

• Understanding of SaaS metrics and PE-backed reporting environments 

• Prior experience with cash flow forecasting or treasury support 

• Experience with FRS102/UK GAAP 

• Competitive day rate / contract fee

• Immediate start, with potential for extension subject to business need

• Central London office location with hybrid working [3 days in the office]

• Direct exposure to a CFO-led, commercially active finance function

• Fast-paced, collaborative environment with real ownership from day one

ITRS is an Equal Opportunity employer and Inclusion is part of our everyday life. We celebrate diversity and pride ourselves on providing an environment where all employees can be their authentic selves and have a voice, allowing everyone to contribute equally. We remain committed to advocating inclusion, diversity, and equality into our ITRS family as we grow and enrich our business.

We welcome applications from everyone in the community as we recognise that a diverse workforce is a stronger workforce.