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A-J Mรคki, PhD

Data Engineer & Passionate Data Guy

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๐Ÿค“ Welcome to My Work Portfolio

Passionate and experienced data guy ๐Ÿค“ with a strong background in ๐Ÿงฎ mathematical modeling and ๐ŸŽ›๏ธ control engineering. Currently, working as a ๐Ÿ‘จโ€๐Ÿ’ป Data Engineer @Solita and building resilient data solutions for the customers using modern cloud platforms and tools like Azure (especially Azure Data Factory and Azure DevOps), Databricks, Python, and PostgreSQL.

๐Ÿ’ผ Reach me via

๐Ÿ“‘ Click here to open my resume (pdf)

๐Ÿ” By the way, Solita is constantly looking for talented persons, check out our ๐Ÿ‘‰ open positions ๐Ÿ‘ˆ or just drop me a message โœ‰๏ธŽ.

๐Ÿ› ๏ธ Skill & Tools

As the saying goes, a picture is worth a thousand words. Hereโ€™s a visual summary of my skills and the tools I use.

my_expertise

Other Technical Skills: MATLAB, Simulink, COMSOL (FEM), git, Powershell, Crosser, Markdown, bash, Linux (Ubuntu/WSL)

Education

Work Experience

๐Ÿ‘จโ€๐Ÿ’ป Data Engineer @Solita (March 2023 - Present)

๐Ÿ‘จโ€๐Ÿ’ป Data Engineer @Futurice (Oct 2022 - Feb 2023)

๐Ÿ‘จโ€๐Ÿ”ฌ Academy - Various Positions, Tampere University (2006-2022)

See full records in ๐Ÿ‘‰๐Ÿ‘จโ€๐Ÿ”ฌ My Academic Portfolio๐Ÿ‘ˆ. Below, I briefly summarize my three most recent positions. Over 15+ years in academia, I developed mathematical models using FEM/COMSOL and MATLAB & Simulink, conducted data analysis with MATLAB, designed various control systems, including those utilizing fuzzy controllers, and developed microfluidics chips.

๐Ÿค“ Visiting Scholar @Tampere University (Oct 2022 - Dec 2024, part time)

I continued as a part-time researcher (approx. 10 hours/month) in Micro- and Nanosystems Research Group led by Professor Pasi Kallio.

๐Ÿ‘จ๐Ÿผโ€๐ŸŽ“ Postdoctoral Research Fellow @Tampere University (Sep 2018 - Oct 2022)

As a postdoc in Professor Pasi Kallioโ€™s Micro- and Nanosystems Research Group, I devloped data analysis methods for several challenging biosignals. Additionally, I worked as professor Kallioโ€™s Vice-PI in a multidisciplinary team combining cell biologists and engineers, and led a group of researchers developing a novel vascular-on-a-chip platform for 3D cell co-cultures.

๐Ÿ‘จโ€๐Ÿ”ฌ Doctoral Researcher @Tampere University of Technology (Sep 2011 - Aug 2018)

My Ph.D. work involved designing and implementing automation and control systems and microfluidics chips, mathematical modeling and data handling using MATLAB, Simulink, and COMSOL.

Certifications

Full list available in Credly.

๐Ÿ“‚ Projects

Data Engineering Services | Private Company, Finland (NDA)

๐Ÿ“… March 2024 - Present
๐Ÿš€ Role: Data Engineer
๐Ÿ”Œ Industry: Energy Sector | Data: Operational & Analytical

๐ŸŒŸ Key Contributions:

๐Ÿ› ๏ธ Tech Stack:

Databricks, PostgreSQL, Azure, Azure Data Factory, Azure DevOps

Data Engineering and Analytics Services| The Football Association of Finland โšฝ๏ธŽ

๐Ÿ“… Aug 2023 - Dec 2024
๐Ÿš€ Role: Data Engineer and Data Analyst
๐Ÿ”Œ Industry: Sport Sector โšฝ๏ธŽ | Data: Operational & Analytical

๐ŸŒŸ Key Contributions:

๐Ÿ› ๏ธ Tech Stack:

Azure, Azure Data Factory, Azure CLI, Azure Functions, MySQL

Industrial IoT Data Engineering Services | Collaboration with Nokia, Snowflake, and Crosser

๐Ÿ“… Jan 2024 - Jun 2024
๐Ÿš€ Role: Data Engineer and Data Analyst
๐Ÿ”Œ Industry: Industry 4.0 | Data: Operational

๐ŸŒŸ Key Contributions:

๐Ÿ› ๏ธ Tech Stack:

Crosser, Snowflake, Streamlit, ELT

Developing Machine Learning Capabilities | Public sector organization in Finland (NDA)

๐Ÿ“… May 2023 - April 2024
๐Ÿš€ Role: Machine Learning Engineer and Data Scientist
๐Ÿ”Œ Industry: Public Sector | Data: Analytical

๐ŸŒŸ Key Contributions:

๐Ÿ› ๏ธ Tech Stack:

Databricks, AutoML, Snowflake, SQL, Python & Spark

Data Engineering Services | Finnish retail company (NDA)

๐Ÿ“… Dec 2022 - Feb 2023
๐Ÿš€ Role: Data Engineer
๐Ÿ”Œ Industry: Retail Sector | Data: Operational

๐ŸŒŸ Key Contributions:

๐Ÿ› ๏ธ Tech Stack:

Azure, Azure Data Factory, PostgreSQL, Python, Databricks

๐Ÿ“‚ Own projects

๐Ÿ” ๐Ÿ“ˆ DatAnalyzer (repo)

A data analysis tool built with MATLAB, described here.

๐Ÿ” ๐Ÿ“ DocLaTex (repo)

Write LaTeX documents together with co-authors that use only MS Word, combines Powershell, Pandoc, LaTeX, and Markdown, more info here.

๐Ÿ“Š Trainings ๐Ÿ’ป

Industrial Data Hothouse - Solita, Solita

๐Ÿ“… May 2023 - June 2023

In this 4-week long program, participants learned the concepts of industrial data and OT-IT convergence, edge computing and hybrid cloud in manufacturing and industrial data modelling and contextualization. We considered multiple technologies and partners, especially in Industrial IoT (IIoT) perceptive, for example Snowflake, Databricks, Crosser.io, Litmus, Nokia MX Industrial Edge, cybersecurity, Docker, OPC UA, and MQTT.

Agile Data Engine (ADE) for Data Engineers, Agile Data Engine

๐Ÿ“… April 2023 - April 2023

The key areas of this certificate are the following: 1) introduction to using ADE, 2) Hands-on training in a streamlined data warehouse project, 3) Comprehensive theory on ADE features and data modeling concepts. After this one week training, participants can succesfully import, model, and publish data.

๐Ÿ“ Blogging

I share my thoughts from time to time (all posts ๐Ÿ‘‰here); my latest posts are following:

โฌ… To My Main Page