I build AI systems that turn repetitive work into automated workflows.

Billing Analyst @ Michelin. AI automation builder focused on documents, data, finance operations and practical workflow intelligence.

Python Automation AI Agents Document Intelligence
scroll

[ 01 — WHO I AM ]

Automation is where I think best.

I work at the intersection of business operations, finance processes and artificial intelligence. My daily world is structured data, documents, repetitive workflows, Excel logic and operational precision. My passion is turning that world into automated systems that save time, reduce manual work and make processes easier to control.

> currently building: document pipelines · matching engines · AI agents

/01

Business Operations

Real-world experience in billing, finance workflows, documents and process logic.

/02

AI Mindset

I use AI not only for answers, but for architecture, analysis, testing, refactoring and building smarter systems.

/03

Automation Builder

I focus on practical tools: converters, validators, matching engines, dashboards and AI-assisted workflows.

[ 02 — LIVE DEMOS ]

Working automation demos, built on synthetic data.

Public demos showing how messy operational input can become structured, validated and repeatable output. No company data, no confidential workflows — only safe examples of real automation patterns.

document intelligence

Invoice PDF → Excel Validator

A browser-based document automation demo that parses sample invoice text into structured output and runs validation checks before manual review.

Input
synthetic PDF invoice
Output
XLSX-style table + validation report
Stack
Python pattern, PDF parsing, pandas, openpyxl
Pattern
extract → validate → export
Live demo GitHub
sample_invoice_0248.pdf live JS engine
PDF / extracted fields
Invoice NoINV-0248
Date2026-07-06
CustomerDemo Customer Alpha
Net€1,240.00
VAT€235.60
Total€1,475.60
extractnormalizevalidateexport
  • VAT calculation: OK
  • Total match: OK
  • Duplicate invoice: No duplicate
  • Missing PO number: Review
InvoiceNetVATStatus
INV-0248€1,240€235.60Review

clean XLSX generated + 1 review warning

credit control workflow

AR Dunning & Cash Collection Assistant

A browser-based accounts receivable demo for credit control workflows. It prioritizes overdue accounts, assigns dunning stages and generates reviewable follow-up drafts.

Input
synthetic receivables CSV
Output
collection queue + email draft
Stack
Python pattern, pandas, rules engine, LLM drafting
Pattern
classify → prioritize → draft → review
Live demo GitHub
receivables_sample.csv live JS engine
Northwind Demo€4,25012dMedium
Atlas Sample Ltd€9,80037dHigh
Blue River Test€1,1205dLow
Nova Retail Demo€6,43024dMedium
1-7d: Gentle reminder 8-30d: Dunning follow-up 31+d: Escalation
Total overdue€21,600
Highest riskAtlas Sample Ltd
Next actionescalation email
process intelligence

Workflow Bottleneck Analyzer

A browser-based process intelligence demo that analyzes synthetic workflow metrics, detects bottlenecks and suggests automation opportunities.

Input
synthetic workflow log
Output
bottleneck report + recommendations
Stack
Python pattern, process logs, analytics, AI recommendations
Pattern
analyze → detect → explain → improve
Live demo GitHub
workflow_metrics_sample.log live JS engine
Intake1.2h Approval9.4h Validation2.1h Correction6.8h Export0.7h
Waiting for approval46%
Missing data31%
Price mismatch14%
Longest stepApproval, 9.4h
Main delayWaiting for approval, 46%
Rework driverMissing data, 31%
Add pre-validation before approval. Auto-route complete requests. Create an exception queue for missing data.

[ 03 — SELECTED WORK ]

Automation areas I explore

These are the broader automation areas behind my working demos and personal systems.

Document Automation

PDF-to-Excel converters, structured extraction, document cleanup and standardized outputs for operational workflows.

PythonPDF → ExcelExtraction
in production · used weekly

Invoice & Data Matching

Deterministic matching logic for business documents, price data, quantities, references and validation rules.

Matching logicValidationReferences
deterministic · zero-guess

AI Process Analysis

Using AI to map workflows, detect weak points, improve procedures and design better automation systems.

Process mappingWeak pointsRedesign
ongoing practice

Diet Planning Engine

A personal AI-assisted nutrition system with meal planning logic, macro adjustment, verification, testing and reproducible outputs.

Meal logicMacrosReproducible
personal system · daily use

Historical & Market Regime Research

Research tools for comparing market conditions, historical analogs, stress signals and regime shifts.

AnalogsStress signalsRegimes
research mode

AI Idea Pipeline

A system for tracking GitHub trends, emerging repositories, papers and new project opportunities.

GitHub trendsPapersSignals
scanning daily

[ 04 — PHILOSOPHY ]

Not just prompts. Systems.

I believe the next advantage will not come from using AI casually. It will come from people who understand processes deeply enough to rebuild them with AI, automation, validation and clear architecture.

● BEFORE — MANUAL PDF XLS MAIL ERR WAIT C/P copy-paste · errors · waiting RULES + AI AFTER — AUTOMATED ● input parse validate ai review report ✓ clean output one pipeline · validated · repeatable
“From Excel chaos to automated intelligence.”

[ 05 — STACK ]

My automation stack

Everything orbits one goal: turn messy input into validated output.

AI WORKFLOW Engine
Python AI agents PDF parsing Data validation FastAPI Excel automation Prompt engineering DuckDB CSV workflows Power Automate Process mapping Testing logic Workflow architecture

[ 06 — EXPERIENCE ]

Business context meets AI execution.

Working in a large international company taught me one thing: real automation is not about flashy demos. It is about understanding messy processes, edge cases, documents, approvals, exceptions and people. That is where useful AI systems are built.

core

Billing Analyst @ Michelin

Large-scale finance operations: billing, documents, deadlines and operational precision.

ops

Finance & document workflows

Invoices, references, validation logic and the unglamorous reality of reporting.

build

Automation projects

Converters, matching engines and checkers — tools that quietly remove manual steps.

design

AI-assisted process design

Mapping how work actually happens, then rebuilding it with AI in the loop.

lab

Personal AI tools & research systems

Diet engine, market research, idea pipeline — a lab that never really closes.

[ 07 — CONTACT ]

Let’s automate
the boring parts.

I am interested in AI automation, workflow intelligence, business process optimization and practical tools that turn repetitive work into systems.

direct line → krapcys1@gmail.com