Open to opportunities

Polina Eri

@polinaeri

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BI report developer & UX/UI designer focused on actionable insights.

Portugal

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What I'm looking for

I’m looking for a role where I can build high-impact BI dashboards and accessible, user-centered UI—translating stakeholder needs into scalable data models, KPIs, and interactive prototypes, iterating quickly with feedback to drive daily and strategic decisions.

I’m a Bachelor of Applied Mathematics and Computer Science graduate with strong foundations in econometrics, optimization, probability, and simulation modeling. I combine analytical thinking with product-minded design to turn complex inputs into clear decisions.

In my recent role as a Power BI Report Developer, I develop BI dashboards and reports for advertising and business analytics, translating business requirements into scalable BI solutions. I design and optimize data models, KPIs, and dashboards, and build DAX measures and SQL queries—improving dashboard refresh performance by up to 2x.

Previously, as a Business Analyst at Stada, I guided cost analysis by enforcing policies and procedures and preparing datasets for weekly and monthly forecasts. I also automated repetitive functions using SQL, saving the team approximately 30 hours of work per month, and delivered weekly and monthly selling reports with ad-hoc analysis.

Earlier, as a Junior UX/UI Designer at Avaz Studio (remote), I designed and prototyped user interfaces for web and mobile applications in Figma. I created wireframes, user flows, and high-fidelity mockups, contributed to a design system with reusable components, built interactive prototypes in Figma and Framer, and designed accessibility in line with WCAG guidelines.

Experience

Work history, roles, and key accomplishments

Junior UX/UI Designer

Avaz Studio

Dec 2025 - Jun 2026 (6 months)

Designed and prototyped web and mobile user interfaces in Figma, translating user needs into intuitive experiences across responsive breakpoints. Built reusable design-system components, created interactive Figma/Framer prototypes, and iterated with stakeholders while following WCAG accessibility guidelines.

Figma Framer UX UI Design Wireframing Design Systems Prototyping Accessibility Responsive Design Stakeholder Management

Power BI Report Developer

ADVlab

Feb 2022 - Dec 2025 (3 years 10 months)

Developed BI dashboards and reports for advertising and business analytics using Power BI and other BI platforms. Built and optimized DAX measures and SQL queries, improving dashboard refresh performance by up to 2x while ensuring data accuracy for decision-making.

Power BI DAX SQL Metabase Apache Superset FineBI Data Modeling KPI Design

Business Analyst

Stada

Sep 2021 - Feb 2022 (5 months)

Supported cost analysis by establishing and enforcing policies and procedures, and prepared datasets for weekly and monthly forecasting. Automated repetitive reporting tasks with SQL, saving the team about 30 hours per month, and delivered selling reports with charts and ad-hoc analysis.

SQL Cost Analysis Forecasting Reporting Data Preparation KPI Reporting Data Visualization Automation Ad hoc Analysis

Education

Degrees, certifications, and relevant coursework

Contented Education

UX/UI Designer (Profession: From Zero to PRO), UX/UI Design

2025 - 2026

Completed a UX/UI Designer program: Profession: From Zero to PRO. Focused on UX/UI design training over March 2025 to June 2026.

Davidson College

Analyzing and Visualizing Data with Power BI, Power BI

2020 - 2021

Completed a Power BI program focused on analyzing and visualizing data. Studied from December 2020 to January 2021.

Plekhanov Russian University of Economics

Bachelor of Applied Mathematics and Computer Science, Applied Mathematics and Computer Science

2017 - 2021

Grade: GPA 4.92/5

Completed a Bachelor of Applied Mathematics and Computer Science on a full scholarship (Class of 2021). Coursework included mathematical analysis, linear algebra, probability and mathematical statistics, econometrics, optimization methods, decision theory, and actuarial mathematics.