Software engineer × practicing RA
I'm Mustafa "Moes" Mufti, a software engineer and practicing Dutch chartered accountant (RA). I build finance systems, AI products and automation with clear rules and an audit trail.
The engineering subledger. For my accountancy & business work, see LinkedIn ↗.
Journal nº 001 · posted 01·01·2022
choose a figure · try the books
memo: both careers held at carrying value. The combination is goodwill IAS 38 won't let me book.
Systems & automation · interim
AI + automation in retail finance operations · Power Platform, n8n, Claude
Product & advisory · founder
Fluent BI · NL tax tooling · automation consultancy
01 / Fixed assetsPublic evidence
Working software, public code and reusable automation.
AI benchmarks · live
Compare AI models and effort settings across published benchmarks. Experimental rankings with customizable weights, traceable sources and visible gaps in the evidence.
AI product · live
Ask questions of spreadsheets and documents in plain language. Turn the answers into charts, shareable dashboards and PDF reports.
Tax product · live
Gross-to-net and tax-reserve planning for Dutch entrepreneurs, with legal-form comparisons, deductions and period-based estimates.
Agentic delivery · open source
Reusable workflows for issue triage, implementation, gated review, CI repair and staged deployment. One architecture for Claude and OpenAI Codex.
Multi-asset platform · private
Cloudflare Consolidated Portfolio Manager. An access-gated system for holdings across asset classes, built with Hono, D1, Durable Objects and scheduled market feeds. The proving ground for the Actions templates.
source soon
Earlier work · open source · Python
A small Python SDK for the Grok API with function calling, published to PyPI. No longer maintained.
02 / Control accountEngineering approach
Understand the process. Encode the rules. Keep consequential decisions reviewable.
AI operating inside control.
01 · intake & evidence
Turn documents and inbox traffic into structured work through extraction, classification and validation. Keep exceptions visible for review.
02 · judgement & control
Organize evidence, reconcile records and prepare period-end outputs. Keep the calculations traceable and consequential decisions under human control.
03 · engineering discipline
Treat workflows as software. Version changes, test business rules, evaluate AI outputs and release deliberately.
04 · products & integration
Build full-stack tools and connect business systems through APIs and bounded interface automation. Design for repeatable runs and clear exception handling.
Registeraccountant (RA) · MSc International Business
Representative tools across client, internal and independent work; no row describes a single engagement.
Contact — open item
Let's talk about the problem and what useful software would change.