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Nicole Santos

@nicolesantos1

Junior Data Analyst turning complex operations into clear, actionable reporting.

Portugal
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What I'm looking for

I’m looking for a Data Analyst role where I can build clean, reliable reporting pipelines, turn messy operational data into executive-ready insights, and keep improving decisions through SQL, visualization, and rigorous validation.

I’m a results-driven Data Analyst with a strong background in administrative management and guest relations. I’m proficient in SQL, Tableau, and data cleaning pipelines that transform complex operational datasets into clear, actionable reporting.

I apply critical thinking and technical proficiency to optimize organizational systems and support executive decision-making. In my portfolio work, I engineered a data-driven conversion strategy for a 5.5 million-row bike-share dataset using SQL (BigQuery), isolating user personas and identifying that casual riders travel 58% longer per trip—then delivering a “Summer-to-Annual” marketing framework to maximize subscription ROI.

I also extract and visualize insights end-to-end, from data cleaning & validation to executive presentation. For example, I mapped audio feature trends from an 85,000-track dataset using SQL and Tableau, creating an executive music production playbook that optimizes track duration and tempo to accelerate release momentum.

Experience

Work history, roles, and key accomplishments

LO

Receptionist

LocalHostel

Jan 2020 - Jan 2023 (3 years)

Managed daily room allocations and guest check-ins, optimizing booking workflows to reduce check-in wait times and maintain 98% data accuracy during peak seasonal spikes.

Education

Degrees, certifications, and relevant coursework

GO

Google

Professional Certificate in Data Analytics, Data Analytics

Activities and societies: Projects included a bike-share analytics case study using SQL (BigQuery) to segment user personas and craft a marketing strategy; data visualization in Tableau; and data cleaning & validation using spreadsheets, with statistical analysis for extracting insights.

Concluded the Data Analytics professional certificate program from Google. Built SQL and Tableau workflows to analyze and visualize datasets for data-driven decision support.

HS

High School

High school, Languages and Humanities

2020 - 2023

Graduated in languages and humanities. Managed daily room allocations and guest check-ins using property management software while studying.

Tech stack

Software and tools used professionally

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