Series · Binary Thinking
A Senior Analyst's Field Manual for Excel-Centered Analytics
A practical sequence for building Excel work that stays fast, stays correct, and survives the day you stop touching it.
Read on LinkedIn →Igor Gojdič
Global HRIS Manager · Data Architect · AI Expert
Approach
Good systems start with
the ones you already have.
Understand. Improve. Build. Automate. Repeat.
From a messy spreadsheet to a system that runs itself.
- Understand Map the system you have today.
- Improve Design a leaner process.
- Data model Built from the data you already own.
- AI Put AI to work inside the process.
- Dashboard Decisions made on live numbers.
- Automate The system runs itself.
↻ Then improve it — and go again
Six worlds
Most of the value lives
where they overlap.
-
Data
Models, pipelines and analytics that hold up under questions.
-
AI
Language models and machine intelligence, applied where they truly help.
-
Automation
Recurring work removed — reports that build themselves.
-
Business
HR, finance and operations — the numbers in their real context.
-
Delivery
From idea to live system, on enterprise terms, at startup speed.
-
Leadership
Teams that keep the system running long after the project ends.
Experience
Sixteen years, end to end.
Below the line — where I was employed · Above — clients I served as a contractor
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Trusted in the rooms of
Oracle·The Adecco Group·Devoteam·PwC·Avast·Atlas Copco·Novartis·Boehringer Ingelheim·Škoda Auto·Ferring
Certifications, Courses & Training
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AI Productivity Foundation
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Oracle SQL Explorer
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Oracle Cyber Security
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Oracle Cloud Infrastructure Generative AI Professional Certification
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Oracle Cloud Infrastructure 2025 Certified AI Foundations Associate
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DeepLearning.AI Data Analytics Specialization
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FinOps Certified Practitioner & FOCUS Analyst
The Linux Foundation · 2025
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Beyond Excel I & II (advanced Excel)
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ServiceNow HR Fundamentals
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PRINCE2 Foundation & Practitioner
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Compensation & Benefits Manager
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CPRE FL
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Articles
Expert articles, written by me.
Binary Thinking is the first series — a practical look at getting data right, where architecture beats clever formulas. More series will follow.
Series · Binary Thinking
Why VBA Still Matters: The Orchestration Layer in Excel
Power Query transforms, Python analyzes, Power Automate connects — but in attended desktop workflows, something still has to orchestrate.
Read on LinkedIn →Series · Binary Thinking
Python in Excel Cheat Sheet: What Every Excel Analyst Needs
The companion reference: the functions, the gotchas, and the side-by-side comparisons that actually matter.
Read on LinkedIn →Series · Binary Thinking
Why Python in Excel May Be Excel's Most Important Feature
For most analysts the hardest part of learning Python was never the language — it was the tooling. Python in Excel removes that barrier.
Read on LinkedIn →Series · Binary Thinking
When Formulas Hit the Wall: The Case for Power Pivot
A data-engineering view on why the fastest VLOOKUP in the world can't save a workbook built on the wrong foundation.
Read on LinkedIn →