@elissaiosbaxevanis
Senior Data Engineer building AWS data platforms, dbt workflows, and custom AI agents as a freelancer.
GreeceAs a freelance Senior Data Engineer, I architect and optimize data pipelines and analytics workloads across AWS, and design dbt workflows with modular transformations, testing, and documentation.
I also build custom AI agents for development and data-engineering tasks, and deliver distributed processing with Python, PySpark, and SQL. My earlier work includes contributing to Verisk Analytics' enterprise data lake and developing a personalized nutrition recommendation system at Healthy Nibbles.
Work history, roles, and key accomplishments
Freelance
Apr 2024 - Present (2 years 6 months)
Architected and optimized scalable data pipelines and analytics workloads across AWS services. Designed and maintained analytics engineering workflows in dbt, and built custom AI agents and agentic workflows.
Freelance
Dec 2022 - Apr 2024 (1 year 4 months)
Developed and maintained end-to-end Spark data pipelines using Python, PySpark, and SQL. Built scalable solutions with AWS services and orchestrated workflows with Apache Airflow.
Contributed to the development of an enterprise data lake that centralized diverse source systems for analytics. Designed and maintained Python, SQL, and Airflow pipelines in a Linux environment.
Healthy Nibbles
Sep 2021 - Apr 2022 (7 months)
Designed and deployed an end-to-end personalized nutrition recommendation system on AWS. Created data pipelines and a synthetic training dataset using Python, Salesforce, and Excel.
Degrees, certifications, and relevant coursework
Master of Science, Data Science
Grade: Distinction
Activities and societies: The DataLab Scholarship
MSc in Data Science, graduated with Distinction and awarded The DataLab Scholarship.
Master of Engineering, Electrical and Computer Engineering
2013 - 2019
MEng in Electrical and Computer Engineering, graduated in the top 10% of the class.
Software and tools used professionally
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