TN — Open to opportunities

Bryan Portillo

Data Analyst

I turn raw operational data into dashboards, reports, and decisions — five years spent cleaning, automating, and visualizing data for teams that need answers fast.

View experience
Bryan Portillo
01

About

I'm a data analyst with 5+ years of experience collecting, cleaning, and visualizing data to support strategic, time-sensitive decision-making. I'm skilled in Python, SQL, Git, Excel, and Tableau, with a track record of building dashboards, automating reporting workflows, and partnering with cross-functional and engineering teams in Agile environments. I communicate clearly in writing and in person, and I'm comfortable managing sensitive information while balancing multiple priorities in fast-paced, deadline-driven settings.

02

Experience

Oct 2020 — Current
R&Y Construction LLC
Lebanon, TN
Data Analyst
  • Wrote Python scripts to automate data cleaning, transformation, and reporting workflows, reducing manual processing time and improving consistency across recurring reports.
  • Used advanced Excel functions — PivotTables, VLOOKUP, and conditional formatting — to extract, clean, and manipulate large data sets, enhancing data quality and reporting efficiency.
  • Analyzed material and operational data sets to identify usage trends, informing strategic, time-sensitive decisions across multiple concurrent projects.
  • Built automated Tableau extracts and dashboards to optimize work site blueprints and streamline data visualization for stakeholders.
  • Managed code and script version history in Git, maintaining organized repositories to support collaboration and change tracking.
  • Participated in Agile ceremonies — standups, sprint planning, retrospectives — collaborating with engineers, project managers, and stakeholders.
  • Served as primary liaison between clients and on-site teams, translating data and feedback into clear, actionable next steps.
Mar 2021 — Oct 2025
Best Buy
Mount Juliet, TN
Apple Geek Squad Certified Agent
  • Diagnosed and resolved device issues using AI-powered diagnostic tools, guiding clients through repairs and claims while handling sensitive account information with discretion.
  • Provided technical support for sever-connected devices and networked environments, assisting with connectivity, device configuration, system access, and troubleshooting issues involving communication between end-user devices and backend systems.
  • Configured and supported home and small-business networking environments, assisting with Wi-Fi connectivity, routers, network devices, and device-to-network communication while educating customers on reliable technology solutions.
  • Identified customer needs and analyzed purchase patterns to recommend tailored solutions, driving a 35%+ increase in regional Apple-branded sales.
  • Built trust-based relationships with a broad, diverse customer base, exercising sound judgment in a fast-paced, deadline-driven environment.
03

Skills

Data & Analysis

SQL Git / Version Control Tableau Excel (PivotTables, VLOOKUP) Data Visualization Data Quality Enhancement

Technical

Python HTML / CSS C++ GitHub AI Diagnostic Tools Tech Support

Process & Collaboration

Agile Sprint Ceremonies Sprint Planning Cross-Functional Collaboration Process Improvement

Professional

Business Acumen Relationship Management Client Communication Stakeholder Management
04

Education

BBA, Computer Information Systems & Business Administration
Middle Tennessee State University
Murfreesboro, TN