Group Accountant (S100) in London

Maven is a market-leading proprietary trading firm deploying its own capital across discretionary, systematic, and market‑making strategies. Backed by deep expertise in trading, technology, and research, we are relentlessly focused on improving liquidity across global listed derivatives. Through advanced execution and pricing technologies, we improve how financial markets operate.

As a Group Accountant, you’ll join a high-performing UK‑based finance team within a fast‑paced trading organisation. This is a key control and reporting role with excellent exposure to how the business operates end‑to‑end. You’ll take ownership of balance sheet integrity across a portfolio of group entities, support the close process, and play a key role in delivering statutory reporting (including consolidated accounts). You’ll partner with teams across the firm to strengthen controls, improve processes, and support high‑impact finance projects.

• Lead the close timetable, coordinating dependencies and act as a key point of contact for stakeholders across Finance and the wider business.
• Prepare and review journal entries, including accruals, prepayments, intercompany, and other complex postings as required, ensuring appropriate supporting documentation and audit trail.
• Review and maintain robust balance sheet reconciliations, ensuring reconciling items are identified, supported, and cleared on a timely basis.
• Support the preparation, review, and audit of statutory financial statements for group entities, including consolidated group accounts, and act as a primary contact for auditors on your areas of ownership.
• Maintain and enhance accounting policies and technical documentation, particularly for complex, judgemental, or higher‑risk transactions.
• Stay up to date with IFRS developments, assessing impact and supporting implementation across the group.
• Assist with the completion and submission of regulatory returns where applicable, while keeping up to date with the evolving regulatory landscape, assessing potential impacts on the business, and supporting any required changes to reporting processes or controls.
• Support tax compliance and reporting by providing accurate schedules, reconciliations, and supporting documentation to internal stakeholders and/or external tax advisers.
• Lead automation and the effective utilisation of AI tools to improve reporting quality, streamline reconciliations, support variance analysis and commentary, and increase efficiency—while ensuring appropriate review and controls are maintained.
• Maintain and improve financial controls, including process documentation and continuous improvement of key control checks.
• Review work prepared by others (where applicable), providing quality assurance, guidance, and informal coaching to support high standards across the team.
• Identify, recommend, and implement process improvements to strengthen financial controls, reduce risk, and improve scalability.
• Contribute to ad hoc projects and cross‑functional initiatives as required.

• Proven experience in financial accounting/financial control, including balance sheet ownership, reconciliations, journals, and statutory reporting support.
• Financial services experience (practice or industry) is essential.
• Experience using NetSuite is highly desirable.
• Exposure to regulatory reporting is desirable.
• Strong Excel skills, with confidence working with large datasets and producing clear, well‑controlled analysis.
• Technology‑first mindset, with a proactive approach to using automation, AI tools, and system improvements to drive efficiency, strengthen controls, and improve reporting quality.
• Excellent attention to detail, strong organisational skills, and a clear sense of ownership and accountability.
• Solid understanding of IFRS, with the ability to research and apply other reporting frameworks when needed.
• Comfortable working to tight deadlines in a high‑accountability environment.

• Competitive compensation package.
• Annual discretionary bonus.
• Enhanced annual leave allowance after 2+ years’ service.
• 25 days’ annual leave (plus public holidays).
• Fully catered breakfast, lunch, and snacks prepared by an in‑house chef.
• Private healthcare and life assurance.
• On‑site private gym with instructor‑led classes including boxing, yoga, and more.
• Monthly company events and social activities.

Maven is committed to creating a diverse and inclusive culture for our employees. It is crucial for us to understand the demographics of our candidate pool to measure our recruitment practices. There is no requirement for any candidate to answer our demographic questions. For candidates who complete the questionnaire, their data will be anonymised and used only in the aggregate to inform our attraction strategy. Maven is an equal opportunity employer and this data will be used for opportunity monitoring purposes.