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Building sourcing tools.
🎯
Building sourcing tools.

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stephanyalves-eng/README.md

Stephany Alves · Complexity, made clear. · SIGNAL & STRUCTURE

Procurement × Engineering × Data · Signal → Structure → Decision → Impact · Evidence-based sourcing decisions

Procurement & Supply Chain · Production Engineer · Data and AI for sourcing decisions

LinkedIn Belo Horizonte, Brazil GitHub followers Profile views

I work where procurement, engineering and data meet: structuring complex supplier information
so that sourcing decisions can be made on evidence, and their impact can be measured.

Production engineer with about four years in aerospace procurement and supplier management.
I build portfolio projects that turn real sourcing problems into working tools, using synthetic data only.

🏭 200+

suppliers managed in aerospace
direct materials

💰 USD 200k+

savings on strategic items,
validated by Finance

⚡ 97%

less effort in supplier due diligence
renewals, through a Kaizen

🌱 Right now

  • 🔭 Building: AeroQuote Compass and a should-cost model for wire harnesses and connectors
  • 📚 Learning: SQL, Python, Tableau and Databricks, through the portfolio projects below
  • 💬 Ask me about: should-cost, strategic sourcing, procurement, supplier quality, maintenance engineering, vendor management and procurement analytics
  • 🤝 Open to: Senior Procurement Analyst · Procurement Analyst · Strategic Sourcing Analyst · Supplier Quality Engineer · Data Analyst
  • ⚡ Fun fact: I can't look at a cable anymore without estimating its should-cost, copper price included.
  • 📖 Outside work: reading

🚀 Featured project: AeroQuote Compass

AeroQuote Compass screenshot

Supplier quotation intelligence for strategic sourcing: AI extraction with buyer review, total annual landed cost,
configurable supplier scoring, risk and anomaly detection, justified recommendation, PDF/Excel/CSV export. 78 automated tests.

Live app Code

🧭 Selected work

Project What it shows Links
Procurement analytics with SQL and Python Spend, supplier and delivery analysis on the public Olist dataset. In progress
Supplier performance dashboard in Tableau Supplier scorecards and delivery risk, built for decision meetings. In progress
Wire harness and connector should-cost Bottom-up should-cost and category strategy for wire harnesses and connectors, calibrated on Comex Stat import prices, with a copper price-adjustment clause backtested for both buyer and supplier. In progress · Repo
Field failure intelligence and crimping SPC Links field failure modes from NHTSA and FAA data to crimp height control, with SPC charts, Cpk, Gage R&R, an 8D on a real recall and an AIAG-VDA PFMEA. In progress · Repo
Assembly line simulation for rate ramp-up Discrete-event simulation of a subassembly line moving from 42 to 47 aircraft per month, comparing line improvements by cost per additional unit. In progress · Repo
Mine-to-port planning and fleet reliability Linear programming model of a mine, rail and port network that maximizes margin within iron grade limits, uses shadow prices to rank bottlenecks and adds Weibull-based fleet availability. In progress · Repo

⚙️ How I work

Signal → Structure → Decision → Impact

Every project starts from a business question, organizes the data that answers it, shows the decision it supports and states what changed. AI handles the repetitive work; calculations stay deterministic and every recommendation shows its reasoning.

🧰 Toolkit

Procurement

SAP MM SAP QM SAP Ariba Incoterms NCM and export control Supplier qualification Lextegrity

Data

Power BI Power Query Advanced Excel SQL Python Tableau Databricks Git GitHub

SQL, Python, Tableau and Databricks: building portfolio projects now.

Product and AI

Lovable Claude Claude Code Prompt design ChatGPT Codex Copilot Gemini Gemini Notebook Google AI Studio n8n Figma Notion Jira

Process

Lean Kaizen and A3 Ishikawa 5 Whys

📊 GitHub stats and activity (click to expand)
GitHub stats Top languages

Commit streak

🎓 Background

  • Procurement analyst in aerospace direct materials (propulsion and avionics) until 2026, managing 200+ suppliers.
  • USD 200k+ in savings on strategic items without purchase history, validated by Finance, partly by adding new sources to single-source parts.
  • Led a Kaizen that removed 97% of the effort in low-risk supplier due diligence renewals.
  • B.Sc. in Production Engineering and B.B.A. (UFVJM) · Postgraduate degree in Aeronautical Maintenance Engineering (PUC Minas) · Fluent in English and Spanish.

📬 Contact

Belo Horizonte, Brazil · LinkedIn

All public projects use synthetic or public data. No confidential company information.


"One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man."
— Elbert Hubbard

Pinned Loading

  1. aeroquote-compass aeroquote-compass Public

    Supplier quotation intelligence for strategic sourcing: AI extraction with buyer review, total annual landed cost, supplier scoring, risk flags and a justified recommendation. Synthetic data.

    TypeScript

  2. p1-wire-harness-should-cost p1-wire-harness-should-cost Public

    Should-cost and category strategy for wire harnesses and connectors, with a copper price-adjustment clause backtested for buyer and supplier.

    Python

  3. p2-field-failure-spc p2-field-failure-spc Public

    Field failure intelligence from NHTSA and FAA data linked to crimp height SPC, Cpk, Gage R&R, 8D and PFMEA.

    Python

  4. p3-assembly-line-simulation p3-assembly-line-simulation Public

    Discrete-event simulation and line balancing of a subassembly line ramping up from 42 to 47 aircraft per month.

    Python

  5. p4-mine-to-port-planning p4-mine-to-port-planning Public

    Mine-rail-port linear programming with shadow prices and Weibull-based fleet reliability.

    Python

  6. procurement-market-briefs procurement-market-briefs Public

    HTML