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I am aJunior Data Analyst with hands-on experience in SQL, Power BI, and semantic modeling. I specialize in ETL processes, KPI dashboards, and dimensional modeling to turn complex datasets into actionable insights. I have experience across SaaS, e-commerce, and scientific data environments, and I am currently studying AI at Johannes Kepler University Linz. I enjoy collaborating with product and medical teams to drive data-informed decisions and improve data quality.…I am aJunior Data Analyst with hands-on experience in SQL, Power BI, and semantic modeling. I specialize in ETL processes, KPI dashboards, and dimensional modeling to turn complex datasets into actionable insights. I have experience across SaaS, e-commerce, and scientific data environments, and I am currently studying AI at Johannes Kepler University Linz. I enjoy collaborating with product and medical teams to drive data-informed decisions and improve data quality.

Aleksandr Masiev

Data Analyst, Data Scientist, Full Stack Developer, +1

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I am aJunior Data Analyst with hands-on experience in SQL, Power BI, and semantic modeling. I specialize in ETL processes, KPI dashboards, and dimensional modeling to turn complex datasets into actionable insights. I have experience across SaaS, e-commerce, and scientific data environments, and I am currently studying AI at Johannes Kepler University Linz. I enjoy collaborating with product and medical teams to drive data-informed decisions and improve data quality.…I am aJunior Data Analyst with hands-on experience in SQL, Power BI, and semantic modeling. I specialize in ETL processes, KPI dashboards, and dimensional modeling to turn complex datasets into actionable insights. I have experience across SaaS, e-commerce, and scientific data environments, and I am currently studying AI at Johannes Kepler University Linz. I enjoy collaborating with product and medical teams to drive data-informed decisions and improve data quality.

Available to hire

I am aJunior Data Analyst with hands-on experience in SQL, Power BI, and semantic modeling. I specialize in ETL processes, KPI dashboards, and dimensional modeling to turn complex datasets into actionable insights.

I have experience across SaaS, e-commerce, and scientific data environments, and I am currently studying AI at Johannes Kepler University Linz. I enjoy collaborating with product and medical teams to drive data-informed decisions and improve data quality.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

German

Intermediate

Work Experience

Junior Data Analyst at PflegeZeit

January 1, 2025 - September 1, 2025

Improved database query performance by 35% by optimizing SQL and adding indexes on high-traffic tables. Co-developed ETL pipelines in Azure Databricks (PySpark) to integrate large-scale data from multiple sources and ensure consistent input for reporting and analytics. Built automated Power BI dashboards and KPI reports for medical and product teams, reducing manual reporting and speeding up decision-making. Designed semantic data models and dataflows for CRM and operations, making reporting queries simpler and more consistent across teams. Developed in-app user behaviour datasets and SQL reports to improve the AI recommender and track engagement KPIs. Performed EDA, data validation and data cleaning to keep reporting datasets accurate and reliable.

Machine Learning Research Assistant at 0xA Science Association

April 1, 2024 - November 1, 2024

Analyzed data for two investor-facing AI projects, assessing model quality and potential business impact. Processed and analyzed large datasets in Python (Pandas, NumPy, Scikit-learn, Matplotlib), extracting insights for model tuning and decision-making. Built an AI chatbot prototype in PyTorch and implemented data preprocessing flows to support training and evaluation.

Intern Backend Developer at 1Form

June 1, 2023 - February 1, 2024

Built Python MVP backends for SaaS/CRM with PostgreSQL and REST APIs to support new features. Designed ER schemas and managed client data flows in DBMS, keeping production data structured and reliable.

Low-code Developer at 1Form

March 1, 2022 - May 1, 2023

Automated CRM/BPM workflows for finance, logistics and retail clients, reducing manual workload. Optimized SQL queries to improve reporting performance and data reliability across enterprise systems. Collaborated with front-end and UX teams to integrate backend data flows and new components into BPM/CRM systems.

Business Analyst at Ozon Marketplace

October 1, 2019 - February 1, 2022

Built SQL-based dashboards in Power BI and used Excel (pivot tables, ad-hoc reports) to analyze sales, category performance and operational KPIs for category managers. Analyzed large sales datasets and A/B tests to support marketing and product decisions.