Customer Financial Assurance Manager

Nottingham, United KingdomRemote

Responsibilities

Own the financial relationship with assigned B2B clients, acting as their trusted advisor on energy accounting and revenue assurance matters. •
Oversee the delivery of monthly financial outputs, including revenue recognition, gross margin, reconciliations, variance analysis, and controls reporting. •
Review and challenge analytical work produced by the Customer Financial Assurance team, ensuring accuracy, completeness, and clarity before client submission. •
Lead client meetings, presenting financial results, performance commentary, and improvement opportunities. •
Collaborate with operations, billing, data, and product teams to resolve issues, improve data quality, and strengthen financial controls. •
Drive continuous improvement initiatives across financial assurance processes, reporting, and client engagement. Competency Requirements: Behaviours: •
Designs workflows, processes and team structures that drive efficiency •

experience through automation and AI‑driven insight, all underpinned by modern, cloud‑native architecture.
experience managing client relationships and presenting financial insights to senior stakeholders. •
Proficiency in Excel and financial reporting tools;
experience with BI platforms is an advantage. •
Experience in the complex workings of the energy market, ideally with large supply portfolios •
In depth knowledge of industry protocols, e.g. settlement mechanics, data flows, invoicing of Gross Margin costs •
Experience of Management Accounting, ideally with both B2C & B2B Energy Supply. Preferably CIMA qualified or studying towards it. •

25 days’ holiday + bank holidays •
Option to buy or sell 5 extra annual leave days per year •
Vitality Health Insurance, including private healthcare, virtual GP access, mental‑health support and wellbeing perks (50% off gym memberships -Virgin Active, Nuffield, PureGym) •
Pension with 5% matched contribution •

We help retailers lower operating costs, improve billing accuracy for consumers, and enhance customer
ENSEK is at an exciting inflection point as we scale at pace towards new international horizons.
If you’re driven by solving complex, real‑world problems and want to build modern technology that accelerates the global energy transition, you’ll feel right at home with us. About the role
The customer Financial Assurance Manager leads the financial assurance relationship for our B2B clients, ensuring the delivery of accurate energy accounting outputs, high-quality revenue assurance and regulatory reporting.
This role acts as the primary financial point of contact, providing strategic insight, commercial guidance, and assurance over financial performance across complex energy portfolios.
Provide commercial insight into consumption trends, billing performance, and financial risks, translating technical data into clear, actionable recommendations. •
Line management responsibility for Customer Financial Assurance Analysts. •
Leads a team to deliver objectives with accountability for outputs and outcomes •
Provides regular feedback, coaching and career development support •
Balances day-to-day operational delivery with incremental improvements •