Simo Tumelius
Co-Founder at Breakout Labs
Lappeenranta, South Karelia, Finland
Summary
👤
Senior🎓
Top SchoolSimo Tumelius is a data engineer and educator with 11 years' experience helping organizations modernize analytics stacks and adopt dbt and Snowflake. As a founder and hands-on consultant, he has led migrations, built automated pipelines, and implemented data quality and CI/CD practices for clients ranging from startups to enterprise teams. He combines pragmatic engineering with education—designing tailored, interactive training and ongoing coaching to shift team mindsets toward modular, maintainable, quality-first analytics. Known for untangling “SQL spaghetti,” Simo pairs technical depth (Snowflake, dbt, BigQuery, Terraform) with a patient mentorship style that turns users into self-sufficient practitioners. Based in Lappeenranta, Finland, he brings a background in bioautomation and a track record of shipping production-ready analytics that drive timely, trustworthy business decisions.
11 years of coding experience
9 years of employment as a software developer
Master's degree, Bioautomation, Master's degree, Bioautomation at Aalto University
English, Finnish
Github Skills (97)
code-behind10
terminology10
torque10
sensor10
measurements10
slack10
data-modeling10
transform10
dbt-cloud10
sql9
dbt-packages9
command-line-interface9
analytics-engineering9
dbt9
macros9
Programming languages (9)
Github contributions (5)
data-mie/dbt-cloud-cli
Nov 2021 - Jan 2023
dbt Cloud command line interface (CLI)
Contributions:20 releases, 3 reviews, 42 commits in 1 year 1 month
dbt-cloudcommand-line-interfacesqldbtcli-interface
data-mie/dbt-profiler
Apr 2021 - Nov 2022
Macros for generating dbt model data profiles
Contributions:22 releases, 3 reviews, 46 commits in 1 year 7 months
macrossqldbtdata-profilesdata-model
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