PORTFOLIO / 2025

JakubWujec

ML Engineer specializing in Machine Learning models and Python development. Expert in building and deploying ML solutions with modern frameworks.

Currently at Roche
Warsaw, Poland
CURRENTLY
ML Engineer
@ Roche
Mar 2025 — Present
FOCUS
Machine LearningData SciencePythonDockerKubernetesAWS

Work

2025-Present

ML Engineer

Roche

Building NPS prediction models and developing machine learning solutions to enhance application performance. Working with AWS infrastructure to deploy and scale ML models for pharmaceutical applications.

Machine LearningAWSPythonKubernetesData Science
2023-Present

Head of AI & Co-founder

MockIT

Architected AI-powered technical interview platform with real-time voice processing. Built conversation engine with multi-model AI integration, WebSocket audio streaming, and intelligent assessment system reducing manual screening by 85%.

PythonFastAPIAIWebSocketsOpenAI
2023-2025

Data Scientist

PKO BP

Developed ETL pipelines using PySpark and BigQuery processing 100M+ records daily. Built Champion Challenger Framework for automated ML pipeline optimization and CRM models for user behavior prediction.

PythonPySparkBigQueryMLOps
2022

Machine Learning Engineer

SonarHome

Upgraded automatic flat valuation model with new features and optimized hyperparameters. Implemented DBSCAN clustering for geospatial anomaly detection with Dash visualization dashboard.

PythonDBSCANDashGeospatial
2021

Data Scientist

Perfect Data

Designed and built recommendation engine from scratch based on user choices and personal values. Created automated data pipelines for text processing from crawlers with MongoDB storage.

PythonMongoDBNLPScrapy

Education

MA Data Science

University of Warsaw
Grade: 5.0/5.0

BS Computer Science and Econometrics

University of Warsaw
Grade: 4.5/5.0

Technical Skills

Machine Learning

Supervised ModelsUnsupervised ModelsNeural NetworksXAITime SeriesNLPTransformersComputer VisionDeep Learning

Python & Development

PythonPandasNumPyScikit-learnTensorFlowPyTorchPySparkFastAPIDjangoPytest

ML Infrastructure & DevOps

DockerMLflowAirflowDVCKubernetesGitGitHub Actions

Cloud & Data

AWS (S3, EC2, SES)GCP (BigQuery, Dataproc)SQLMongoDBStatistics

Let's Connect

Always interested in discussing machine learning innovations, research collaborations, and opportunities in ML and Python development.

© 2025 Jakub Wujec. All rights reserved.
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