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Erik Johnson

@erikjohnson

Data Scientist at Max Planck Institute & University of Göttingen who detected periodic signals across 16 stars.

United States
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At Max Planck Institute & University of Göttingen, I developed Python pipelines to process, index, and model more than 10 million time-series data points. I also built parameter-optimization frameworks to calibrate complex physical models.

Across 16 stars, I applied multiple period-search methods and detected periodic signals in 25% of the sample. I designed and validated a quantitative indicator that separated stellar activity from noise in more than 14,000 spectra across 345 stars, overturning a 50-year-old model.

I formed and led international research teams whose work resulted in 16+ peer-reviewed publications and 20+ conference presentations. I also developed automated transient and anomaly detection algorithms and mentored undergraduate and graduate students.

As a self-employed Technical Project Manager & Research Collaborator, I managed efficiency upgrades for residential solar, HVAC, and water-retention systems. Quantitative monitoring reduced grid energy consumption by 99%, HVAC energy use by 40%, water consumption by 27%, and overall carbon footprint by 45%.

Experience

Work history, roles, and key accomplishments

SE
Current

Technical Project Manager & Research Collaborator

Self-Employed

Jan 2024 - Present (2 years 9 months)

Managed data-driven efficiency upgrades for residential solar, HVAC, and water retention systems, overseeing vendor timelines and system optimizations. Reduced grid energy consumption by 99%, HVAC energy use by 40%, water consumption by 27%, and overall carbon footprint by 45% through quantitative monitoring.

MG

Data Scientist (Doctoral Researcher)

Max Planck Institute & University of Göttingen

Jan 2016 - Dec 2024 (8 years 11 months)

Engineered custom end-to-end Python analytical pipelines to process, index, and model 10M+ time-series data points. Built high-dimensional parameter optimization frameworks and applied periodograms, Gaussian process regression, and hypothesis testing across 16 stars, detecting periodic signals in 25% of the sample.

Education

Degrees, certifications, and relevant coursework

LC

Las Positas College

Continuing Education, Computer Science, Machine Learning & AI

2025 -

Continuing education in Computer Science, Machine Learning & AI, ongoing since 2025.

MG

Max Planck Institute & University of Göttingen

PhD, Astrophysics

Grade: cum laude

Joint PhD in Astrophysics between the Max Planck Institute for Solar System Research and the University of Göttingen. Thesis: 'Stellar Activity and Radial Velocities in M Dwarfs' (cum laude).

UI

Universität Innsbruck

MSc, Astrophysics

MSc in Astrophysics from the Astromundus Joint International Masters Degree in Astrophysics, jointly with Università degli Studi di Padova and Georg-August-Universität Göttingen.

University of California, Los Angeles (UCLA) logoUU

University of California, Los Angeles (UCLA)

BS, Geophysics and Space Physics

BS in Geophysics and Space Physics with a minor in Geology.

Google logoGO

Google

Professional Certificate, Data Analytics and AI

Google Data Analytics Professional Certificate and Google AI Professional Certificate (incl. AI for Data Analysis).

IBM logoIB

IBM

Professional Certificate, Data Analysis

Data Analysis with Python certification.

Duke University logoDU

Duke University

Professional Certificate, Computer Science

Object-Oriented Programming in Python certification.

Tech stack

Software and tools used professionally

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