Konstantinos Psaroulakis Email & Phone Number

Athens, Attiki, Greece

Athens, Attiki, Greece

- Data Warehouse Enhancement: Contributed to the transition from basic API/database queries and AWS Athena to an Airflow & Databricks-based process, contributing to an increased processing speed & improved data quality.- Databricks Role: Assisted with database schema management, job monitoring, and upgraded the codebase with new Databricks features, including using Autoloader with Delta tables for ingestion, to enable automatic schema evolution.- Workflow Automation: Automated data ingestions using Apache Airflow to schedule Databricks jobs defined in Python with PySpark, improving overall automation.- Team Collaboration: Contributed as a member of a 7-person multi-discipline team and collaborated closely with other teams (data scientists, ML engineers and DevOps engineers) to solve cross-team issues, utilizing Jira for project management.- Documentation Contribution: Actively participated in the creation of infrastructure documentation and took the initiative to develop new hire guides, thus streamlining the onboarding process by leveraging my fresh perspective as a new hire myself.- Docker Utilization and Testing: Utilized Docker for local testing environments and played a key role in developing integration tests, ensuring robust data processes. Additionally, contributed to the implementation of unit tests for code quality assurance.

• Showcased musical talent as a freelance flute performer at various hotel units, bars, and music scenes, concert halls.• Utilized sound engineering skills to ensure optimal sound quality during performances.• Employed photo/video editing skills to create visually engaging promotional materials for performances• Demonstrated the ability to negotiate and make deals with business owners, securing performance opportunities and establishing mutually beneficial partnerships.

Iráklion, Crete, Greece

• Conducting exploratory data analysis, feature engineering, and data cleaning on various open source audio datasets and real field audio data.• Collaborating on the development of an audio event detection and classification system for gunshots.• Developed a GUI for a seagull detection and classification system, resulting in a 75% increase in dataset production efficiency.

Agios Nikolaos Crete, Crete, Greece

• Instructed children and adults, ranging from 6 to 35 years old, in flute and recorder playing, fostering a passion for music and facilitating skill development.• Organized and coordinated small student teams for live performances, both solo and group, nurturing teamwork and performance abilities.

Heraklion

Rhodes, Southern Aegean, Greece

• Responsible for the soldiers' shifts and organizing bureaucracy of the Military Unit using spreadsheets.• Taking part on official military appearances and parades as flutist.

Iráklion, Crete, Greece

• Conducted research and development on a wildlife audio event detection system for identifying illegal human activities.• Performed exploratory data analysis, feature engineering, and data cleaning on open source audio datasets and real field audio data.• Developed a command line interface and a graphical user interface (GUI) for two open source tools dedicated to chainsaw and cough detection.

• Researched machine-learning techniques for the detection of audio patterns • Studied techniques on the field of sound event detection (Nonnegative Matrix factorization, Time Encoding Signal Processing and Recognition, Neural Networks, standard ML models)• Prepared datasets on JSON format for a Speech to Text application.

Μοίρες, Ηράκλειο

Master Of Science - Ms, Multimedia Technology - Signal Processing | Algorithms And Systems Analysis, 9.07

MSc in Computer Science with specialization in Multimedia Technology https://www.linkedin.com/school/uoc-csd/

Bachelor’S Degree, Applied Mathematics, 8.19/10

Activities and Societies: Music group, Chorus, Technical Support Group

High School, General Studies, 19.1

Activities and Societies: Music group, Chorus

High School

Activities and Societies: Chorus, School Orchestra