Mitsubishi Power Europe is at the forefront of the energy transition, delivering advanced power generation and decarbonisation solutions across Europe, the Middle East and Africa. Headquartered in Yokohama, Japan, Mitsubishi Power has over 1000 employees across the EMEA region, and along with our predecessor companies, we have had a presence in the region since 1898.
We are seeking a technically strong and commercially aware
Assistant Manager – Financial Accounting
to join our finance function in London. This is a broad, high-impact role spanning financial reporting, balance sheet governance, tax support, internal controls and finance process improvement. You will work closely with senior finance leadership and HQ, gaining exposure across statutory reporting, cash flow performance and finance transformation initiatives.
The Role
You will play a cross-functional role across financial reporting, accounting policy, tax and internal controls, contributing to the efficient operation and long-term sustainability of the finance function.
* Prepare monthly, quarterly and annual financial statements for HQ reporting and statutory filing
* Analyse financial results, explain key movements and provide insight to management
* Act as key contact for external and internal audit processes
* Ensure compliance with IFRS, UK GAAP and statutory requirements
Balance Sheet & Cash Flow Management
* Own balance sheet integrity, reconciliations and control
* Monitor accruals, provisions and suspense accounts, ensuring timely resolution
* Analyse working capital and cash flow trends to identify risks and improvement opportunities
* Support initiatives to enhance cash conversion and financial discipline
Tax & Statutory Compliance
* Support corporate tax calculations and filings
* Review VAT returns and ensure compliance with UK tax regulations
* Liaise with external advisors and support tax audits or enquiries
Finance Process & Systems Improvement
* Support design and enhancement of internal controls and finance processes
* Identify inefficiencies and control gaps, proposing practical improvements
* Contribute to finance system optimisation and automation initiatives
* Promote standardisation and use of digital tools (Power Platform, RPA, AI where appropriate)
Business Partnering & Projects
* Provide financial and cash flow insight to management
* Support cross-functional initiatives across accounting, treasury and tax
* Deliver ad-hoc analysis and HQ reporting requirements
About You
Qualifications & Education
* Degree in Finance, Accounting, Business or related discipline
* ACCA or CIMA qualified or part-qualified
* 3–4 years' experience in a professional accounting firm (Big 4 or similar), or
* 5+ years' experience in industry within financial, project or managerial accounting
Technical Expertise
* Strong working knowledge of IFRS and UK GAAP
* Understanding of corporate tax and VAT principles
* Experience with SAP (R/3 or S/4HANA) or similar ERP
* Advanced Excel skills
* Exposure to Power BI, Power Query or Power Automate desirable
Capabilities
* Strong analytical and problem-solving skills
* High attention to detail and financial control mindset
* Ability to communicate complex financial matters clearly
* Organised, proactive and able to manage multiple priorities
* Experience reviewing work and supporting colleagues' development is advantageous
What we offer
* Competitive contributory Pension scheme
* AXA Private Healthcare, including Dentist and Optician cashback, and virtual GP
* Life Assurance
* Discretionary Annual Bonus
* Discounted Gym Membership
* Cyclescheme
* Workplace Nursery Benefit
* EV Car Salary Sacrifice Scheme