Tax Reform Projection (LC 214/2025)
Companies that trust my consultancy
"His profile is marked by a focus on tax efficiency, process automation, and fiscal intelligence, mastering tools like Advanced Excel, Power BI, SQL, VBA, and Python. [...] Professionals like him add real value to businesses and make a difference in any team."
"Darlan Sandro exposed me to the Information Technology field from a very early age. His guidance and support helped me build a strong foundation in programming logic, data structures, and algorithmic thinking. He is an exceptional professional."
My latest and most relevant contributions.
A self-hosted n8n and local Qwen3 LLM pipeline reconciles supplier invoices 24/7 at zero API cost—fully sovereign, secure, and LGPD-compliant.
Read ArticleA ViaSul proof of concept governs multi-agent RAG for consultative email service with deterministic routing, validated evidence, persisted state, and verified operations. It separates model interpretation from execution to prevent unsupported actions.
Read ArticleSenior Data Analyst with 15 years of corporate experience, operating strategically at the intersection of Finance, Controllership , and Data Engineering (Tax Technology). My approach goes far beyond traditional compliance: I leverage Data Analytics and Artificial Intelligence to audit production costs, streamline executive reporting, and mitigate risks during complex regulatory and tax transformation processes.
Combining a strong academic background — including an MBA in Digital Accounting, a specialization in Tax Management, and postgraduate studies in Business Analytics & AI — I build robust data pipelines to support high-level decision-making. Additionally, I serve as a Technical Support Specialist at Hashtag Treinamentos, performing code reviews and troubleshooting advanced Database and BI challenges. This dual expertise strengthens my ability to translate technical complexity into actionable insights that drive operational efficiency.
Technologies I master:
Practical solutions in Data Analytics, Python Automation, and Fiscal Dashboards for high-volume data.
Don't just take my word for it. Experience my technical skills in action. Interact directly with this real **Tax Intelligence Dashboard**. Click the filters to slice the data and visualize insights dynamically.
Thoughts on the convergence of Tax Reform, Artificial Intelligence, and the future of Accounting.
How integrating accounting, legal, and tech perspectives bridges the gap between physical inventory and ERP data.
Learn how to fix driver errors and turn Excel imports into a smooth process using T-SQL and the OPENROWSET function.
Discover how centralizing your data with a Shared Semantic Model can boost performance and reduce database load.
A self-hosted n8n and local Qwen3 LLM pipeline reconciles supplier invoices 24/7 at zero API cost—fully sovereign and LGPD-compliant.
This case study shows that multi-agent RAG can scale consultative email service when identity, evidence, routing, state, and operations are explicitly governed. It separates model interpretation from deterministic execution to prevent unsupported actions.
2023 – Present
Provide strategic consulting services focused on tax restructuring, compliance optimization, and Business Intelligence implementation in corporate tax departments.
2025 – Present
Strategic technical support in SQL Server and Power BI for advanced corporate data modeling scenarios.
2008 – 2022
Led accounting and tax operations for companies under Real and Presumed Profit regimes.
2000 – 2008
2009
FNAT
Faculdade Visconde de Cairu
Faculdade Pitágoras
Faculdade Dom Luiz
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