About Mark
Senior Software Engineer (Python/Rust) • Data Engineering • BigQuery/ETL • End-to-end analytical systems
English
Native or bilingual
German
Fluent
French
Basic
Experience
- MOIA GmbH,Data Scientist (Transportation-modeling)AUTOMOBILEJanuary 2024 - Today (2 years and 6 months)Hamburg, GermanyI currently work in the strategy department, the team(Mobility Consulting) focuses on providing SaaS products and consultation relating to agent-based simulations. Clients include cities, local governement authorities, and private enterprises.Technologies: Java, Data Analysis, Python, AWS Athena SQL.
- MOIA GmbH.,Senior Data ScientistAUTOMOBILEJanuary 2017 - January 2022 (5 years)Hamburg, Germany- Hired the initial team of data scientists, BI developer, and data-engineers.- Built 1st data warehouse pipeline using python, redshift, AWS lambda, Kinesis.- Worked on demand prediction (time-series based python model, etc), fleet rebalancing (OSMNX, non-negative matrix factorization), break planning optimization ( non-linear objective using an open-source JVM-based tool called Optaplanner).- We rewrote the optimizer in Rust for performance, which is still the tool of choice at MOIA for optimization work.
- E-Farm GmbH.,Senior Data ScientistE-COMMERCEJanuary 2022 - January 2024 (2 years)Hamburg, GermanyE-Farm had just one data science team, managing several data science projects. The most important project was a model for predicting the price of used farm machinery, (a farm-machinery depreciation estimator). The team had already developed a decent, but costly Vertex AI-based ML model. Management wanted something cheaper, simpler, and easier to adjust to different business cases.I worked with another data scientist to reverse engineer where most of the model's predictive power came from, and eventually we managed to match the neural net model performance with a (fairly) simple linear model.Technologies: Data Science: Python, Pandas, Numpy, Scikit-learn, SpaCy. Infra (GCP): BigQuery (SQL), Vertex AI, Cloud Run, docker, git.Hamburg I joined MOIA as they were launching their first test in Hanover. I helped set up the initial DWH in Redshift, hired several data scientists, engineers, and analysts. I then worked on fascinating projects such as: Demand Prediction, Fleet Rebalancing (redistributing vehicles using temporal-spatial demand and supply diffs), Vehicle Supply Optimization (online, local-search based discrete optimization of break locations). I also successfully co-created and pitched a 12 month product development roadmap for the team.
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Education
- Bsc.The Open UniversityBsc. Mathematics and Statistics
- Post-graduate DiplomaUniversity College Dublin2019Post-graduate Diploma Data Analytics