T. SIIK
Blueprint Ink
SHEET 01 — General Arrangement

TONI SIIK

Manufacturing Data Scientist · Quality & Process Intelligence
FROM ROOT CAUSE → TO PRODUCTION FIX

I own the manufacturing decision loop — detect, measure, explain, intervene, standardize — turning fragmented plant, lab, supplier and ERP data into causal root causes and measured shop-floor change.

Foundry metallurgy + ERP / SAP + Data science = Root cause
FIG. 1 — The Decision Loop
ELEV. — SUBJECT
Portrait of Toni Siik, rendered as a technical drawing
SUBJECTToni Siik
ROLELead Mfg. Data Scientist
DISCIPLINEQuality & Process Intel.
LOCATIONSwitzerland
SHEET 02 — About

I turn fragmented plant, lab, supplier & ERP data into causal root causes, production policies, and measurement gates operators actually use.

Not just models — measured change in scrap, cost and process behaviour, in production. Detect a problem, measure it objectively, explain why it happens, intervene at the right lever, and standardize the fix so it sticks.

My edge is the rare overlap most heavy-industry data work is missing: foundry metallurgy, ERP / SAP master data, and data science in one head — the moat that turns a model into a trusted shop-floor decision. 14+ years across automotive, marine and aerospace casting.

0
Charges modelled
0
Data systems integrated
14 yr
Metallurgy + data
Featured interview — Valimoviesti 1/2026 (Finnish foundry-industry trade magazine)
SHEET 03 — Bill of Capabilities

Furnace Decision

A/ Data Science

  • Causal inference
  • Design of Experiments
  • Statistical Process Control
  • SHAP & interpretability
  • Classical ML — XGBoost, RF
  • Computer vision & deep learning

B/ Engineering

  • Python · SQL
  • Pipelines — Parquet, DuckDB, Polars
  • FastAPI services
  • Electron / React apps
  • MCP servers
  • PyTorch · Cellpose-SAM

C/ Domain

  • Foundry & metallurgy
  • Quality engineering
  • ERP / SAP master data
  • Process metallurgy data
  • Defect & scrap analysis
  • Acceptance / measurement gates

D/ Method

  • Reproducibility-first
  • Adversarial review
  • Change management
  • Pre-registered analysis
  • Auditable lineage
  • Evidence over hype
SHEET 04 — Details & Sections

Case studies, not slideware

AFlagship program

Closed-Loop Quality Intelligence

MULTI-YEAR ROOT-CAUSE PROGRAM

Integrated five data systems across ~2,000 production charges. Causal inference + Design of Experiments isolated a supplier-chemistry × furnace-state interaction — driving a zero-CAPEX process-policy change plus a production fix, and replacing subjective inspection with quantitative acceptance criteria.

Causal inference DoE SPC Data integration Change mgmt
0
Data systems integrated
0
Production charges
ZERO capex
Process-policy fix
CERESDET. B

Vision grain-size measurement

Production computer-vision — fine-tuned instance segmentation for automated grain sizing. Offline desktop app with an active-learning correction flywheel; now the objective measurement gate.

r = 0.0vs gold-standard
V3CTORDET. C

Reproducible analysis, enforced

An MCP server making auditable analysis the path of least resistance: enforced pre-registration, hash-chained lineage, deterministic outputs. The system that scales the work.

0tests green · 22 tools
BIOMEDET. D

Production-intelligence platform

Analytical data cube + relationship graph + automated 10-pillar governance audit + SPC. Surfaced a major hidden cost variance invisible across siloed systems.

0pillar audit
VULCANOPSDET. E

ML scrap forecasting

~90 models across five defect types with SHAP-driven process-driver science and rigorous feature engineering — scrap moved from after-the-fact reporting to forward forecasting.

0models · 5 defects
KRONOSDET. F

Agentic knowledge & automation system

A personal "second brain" — an MCP server + desktop app that turns a knowledge vault into an agentic system: semantic search, schedulers, and multi-model orchestration the AI calls to run real workflows end to end.

0MCP tools · agent-callable
MORIADET. G

Scrap-rate automation app

A standalone app that automates foundry scrap-rate roll-downs and SAP write-back from the unified data cube — replacing manual corrections with a governed, repeatable pipeline.

SAPautomated scrap write-back
SHEET 05 — Survey Stations

Toward the decision loop

NOW · 2022 — PRESENT
Production Engineer / Foundry Expert
Georg Fischer JRG AG · Sissach, CH

Realigned from foundry management to a deep-analysis / data expert track. Owns the manufacturing decision loop — the 5M+ CHF Closed-Loop Quality Intelligence program plus the production-intelligence stack (CERES, Vulcan, BIOME, V3CTOR). Plant-wide data management; 5S, Kanban (~30% lead-time gain), automated core-shop vision.

2019 — 2022
Technical Director / Head of Foundry
Metallgiesserei Wilhelm Funke GmbH · Alfeld (Leine), DE

Led the transformation to AS9100 aerospace certification. Embedded simulation as a core design tool (+50% yield, −60% chills, sub-5-day prototypes); root-caused magnesium & copper-alloy defects; design support to Rimac on next-gen electric engines.

2015 — 2019
Senior Project Engineer / Simulation Specialist
Nemak Wernigerode GmbH · DE

Rescued an engine-block launch by root-causing hot tearing with process-parameter changes alone. Built a predictive material-property tool from 10,000+ tensile bars to secure SOP; created an SQL framework to leverage process data across the chain.

2011 — 2015
Product Development Engineer / Lead Design Engineer
Componenta · Helsinki, FI

Supported a 300,000+ t/yr foundry network; led the most demanding large castings (10-tonne wind-turbine hubs, marine engine components for clients incl. Wärtsilä); cut scrap 50% via simulation + process-data analysis.

2005 — 2011
MSc & BSc — Metal Materials & Manufacturing
Tampere University of Technology · FI

The metallurgy & manufacturing foundation behind the data work. Lean Six Sigma Green Belt (2026); AS9100 implementation lead.

SHEET 06 — Field Survey

Same method, on the trail

Distance runner with a fastpacking habit — multi-day trail on a light pack. Structured training, measured progress, the long game. The discipline that ships production fixes finishes hard races.

Route · elevation profileFastpacking — multi-day
0:00
Marathon PR
0:00
Half PR
00:00
10K PR
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Weekly km

Structured, not heroic

Periodized training, honest data, controlled progression. No single big push — a system that compounds, the same way scrap comes down.

Built for the long route

Fastpacking rewards judgment under fatigue and light, deliberate kit. Multi-day problems solved by preparation, not improvisation.

SHEET 07 — Contact

Let's close your loop

Open to senior data-science roles and consulting where metallurgy, quality and data science meet. If you have scrap, cost or process problems that resist the usual dashboards — let's talk.

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Toni Siik
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Title
Manufacturing Data Scientist — Quality & Process Intelligence
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DWG. TS-2026 · NTS ·