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Konstantinos Dorotheou

Head of Group Finance Transformation

I help finance teams improve reporting, make sense of complex data and assess business opportunities.

I work with group leadership on acquisitions, financial analysis and practical improvements to finance processes.

Explore selected work

An introduction to my work. Open a case study for the detail, or read my full CV.

Selected work.

Four selected cases across finance operations, acquisitions, group reporting and data reconciliation.

Explore the selected work

Connecting purchases, stock and sales

In use; development continues

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I built and run a connected finance process covering purchases, stock, sales invoicing and customer-payment reconciliation.

I am the sole hands-on owner of the design, build and operation of this system. I set the finance requirements, build and test the tools, issue sales invoices, reconcile customer receipts and handle reporting and exceptions. Operations provides and confirms stock information; financial release and corrections require explicit approval. I use Claude Code and Codex to assist development and review, while retaining responsibility for the work.

Assessing acquisition opportunities (M&A)

Capability project

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I turn financial records and deal questions into analysis leaders can challenge, with assumptions and source links kept visible.

Assesses business value, the sustainability of earnings and financial risks, with analysis the board can trace to its sources.

Multi-ERP reporting router

Internal work sample

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One reporting engine brings comparable data from different accounting systems into a shared model. Configuration handles the differences between interfaces and companies.

Added companies and entity types through configuration rather than new queries. Isolated API differences behind the router so source changes remain contained.

Controlled cross-ERP entity matching

Internal work sample

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I help teams recognise the same business across accounting systems and identify records that need review. In the recorded 144-case reference set, correct matches increased from 62 to 117.

Matched entities across ERPs and quantified the master-data clean-up required before launch.

A practical approach to finance.

I am Costas, an ACA-qualified chartered accountant. My career has taken me from audit at PwC to commercial deal analysis at Avanade and now to group finance transformation. Audit taught me to question the numbers. Commercial work taught me to connect them to the decision a business needs to make.

Read my full experience and qualifications

Let us talk about the work.

For a role or project involving reporting, finance systems or acquisition analysis, get in touch. Based in Limassol, Cyprus. Open to advisory, board, and senior group finance engagements across the EU and UK.

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