Ahmadreza Ahmadi

Work experience

• Deputy of Design & Data Engineering — Hamfekran Fanavari Sharif (2022 – present)

Ahmadreza Ahmadi's blog → (22 posts)

Event-driven architecture and message queues in payment systemsAt thousands of transactions per second, direct synchronous calls become brittle; event-driven design decouples services.Git and branching strategy: orderly team collaborationGit underpins developer collaboration; a clear branching strategy reduces conflicts and release errors.Database optimisation: indexes, queries and performanceMuch slowness comes from inefficient queries, not servers; a few principles multiply speed.API design: REST or GraphQL? Choose by needREST and GraphQL each excel in different situations; the right choice depends on consumers.Data engineering and ETL pipelines: the backbone of analyticsBefore any analysis or AI model, data must be extracted, cleaned and integrated — the job of data engineering.UX design in financial products: simplicity, trust and accessibilityIn finance, UX reduces user error, builds trust and ensures access for all.Python for data analysis: practical tools for financial analystsPython’s rich libraries make it the main language of data analysis, from cleaning to predictive modelling.Database design for financial systems: integrity, performance and auditabilityIn finance the database guarantees correct figures and traceability of every change.Fraud detection with machine learning: uncovering hidden transaction patternsFraud keeps evolving; ML offers a dynamic defence by spotting anomalous behaviour.Big-data analytics in banking: from storage to valueBanks generate vast data daily; the right architecture turns it into competitive advantage.Business intelligence in financial organisations: from traditional reporting to predictive analyticsBI turns raw data into strategic insight and shifts decision-making from hindsight to foresight.Data quality: the prerequisite for any AI projectEven the best model fails on messy data. Much of the work is data preparation.Management dashboards: from scattered data to fast decisionsManagers spend hours collecting reports. A good dashboard turns that time into analysis.Digital transformation in Iranian organisations: barriers in researchManagement research points to culture and resistance to change as the main barriers, more than technology.Sayad cheques: transparency for commercial instrumentsIran's Sayad system requires cheques to be registered and confirmed, reducing fraud and bounced-cheque risk.E-Invoicing and “VAT in the Digital Age” in EuropeWith the ViDA package the EU makes e-invoicing and digital reporting mandatory for intra-EU trade.Digital Public Infrastructure: Identity, Payments and Data ExchangeThe World Bank sees digital public infrastructure as a foundation for delivering public and private services at national scale.Trust in Money in the Age of Tokenisation: the BIS 2026 Annual ReportThe BIS argues in June 2026 that the path to the next-generation financial system lies in safeguarding trust in money, and current stablecoins still fall short.Big Tech in Finance: The Data–Network–Activities LoopThe BIS explains why big tech firms move quickly into finance and what it means for competition and supervision.Buy Now, Pay Later: Rapid Growth and Hidden RisksA CFPB report shows BNPL loans grew roughly tenfold in two years.Financial Inclusion Worldwide: Findings of Global Findex 2025The latest World Bank database shows 79% of adults have an account and digital payments are the most widely used financial service.Tokenisation: The BIS Blueprint for the Next-Generation Monetary SystemIn its 2025 Annual Economic Report, the BIS sees a tokenised unified ledger as the foundation of the future financial system.

HFS team