Operations
Financial Controller
30 Mar 2026
The Role
We are looking for a Financial Controller to become Diesta’s internal expert on insurance accounting and finance. This role sits at the intersection of finance, product, implementation and customer success.
You will support pre-sales by helping shape solution design sessions with prospects, bring subject-matter expertise into customer implementations, and help customers succeed in using Diesta in their day-to-day financial operations. This includes both proactive support, such as running internal tests and shadow financial control processes, and reactive support through regular customer check-ins and problem solving.
You will also play an important role in the internal development of Diesta’s accounting module, helping ensure it reflects real insurance finance workflows, reporting needs and operational requirements.
Key Responsibilities
Act as Diesta’s internal subject-matter expert on insurance accounting, finance processes and financial reporting
Support pre-sales conversations and design sessions by translating customer finance requirements into practical solutions
Work closely with implementation teams to help configure and deliver customer setups aligned with real finance workflows
Provide expertise on financial reporting, reconciliation processes and accounting controls during onboarding and rollout
Support customers proactively by running internal tests and shadow financial control processes
Support customers reactively through regular check-ins, issue resolution and guidance on best practice use of Diesta
Contribute to the ongoing development and refinement of Diesta’s accounting module
Feed customer insights and finance requirements back into product development
Help strengthen Diesta’s internal expertise and credibility in insurance finance and accounting
What We’re Looking For
Strong experience in insurance accounting, finance operations, financial control, or a related finance role.
Good understanding of insurance finance processes, reconciliation, reporting and operational controls
Ability to work across commercial, product, implementation and customer-facing teams
Confidence in engaging with customers and explaining finance concepts in a clear and practical way
A hands-on and proactive approach, with strong attention to detail
Interest in improving systems, workflows and financial operations through technology
Comfortable working in a fast-moving environment where the role combines strategic input and day-to-day execution
Our Expectations
Within the first 30 days:
Build a strong understanding of Diesta’s product, customer workflows and current accounting capabilities. Get familiar with our target customers, implementation approach and the main insurance finance use cases we support. Begin contributing to internal discussions around finance processes and product improvements.
Within the first 60 days:
Start actively supporting pre-sales and implementation work as the internal finance expert. Participate in customer conversations, contribute to design sessions, and begin running internal tests and shadow financial control reviews to identify gaps and improvement opportunities.
Within the first 90 days:
Operate confidently as Diesta’s go-to expert on insurance accounting and finance. Support customers more independently, add clear value across pre-sales and implementation, and contribute actively to the development of the accounting module based on customer needs and market insight.
Why Join Diesta?
Join a mission-driven team addressing real pain points in insurance finance.
Be part of a lean, high-performing team with direct impact on product and client outcomes.
Work with top insurers and brokers in an industry ripe for disruption.
A culture of high trust, low ego: we value competence, commitment, and transparency.
Benefits
Hybrid work model with a central London office (Bank / Liverpool Street)
Private healthcare insurance
Regular team lunches and international offsites
State-of-the-art technical equipment
22 days annual leave (excluding bank holidays)
Interested in leading a growing team and shaping the future of client success in insurance finance?
Apply now to join Diest by sending your application to recruitment@diesta.co.uk
A new level of premium processing
Diesta Limited (Company Number: 13969906, Firm Reference Number: 1012426) is an agent of Plaid Financial Ltd. (Company Number: 11103959, Firm Reference Number: 804718), an authorised payment institution regulated by the Financial Conduct Authority under the Payment Services Regulations 2017. Plaid provides you with regulated account information services through Diesta as its agent.
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