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.

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

Sept 2025 - March 2026
Phoenix Consulting
Nashville, TN
Account Data Analyst
  • Wrote Python scripts to automate data cleaning, transformation, and reporting workflows, reducing manual processing time and improving consistency across recurring reports.
  • Wrote SQL queries to pull, join, and aggregate account and operational data from multiple sources, supporting accurate and timely client reporting.
  • Used advanced Excel functions such as PivotTables, VLOOKUP, and conditional formatting to extract, clean and manipulate account and operational data sets, enhancing accuracy and turnaround time for client-facing reports.
  • Built automated Tableau extracts and dashbaords to give clients clear visibility into accout performance and operational data.
  • Served as primary liaison between clients and on-site teams, translating account data and feedback into clear, actionable next steps for diverse audiences.
Mar 2021 — Oct 2025
Best Buy
Mount Juliet, TN
Apple Certified Agent and IT Support Technician
  • Provided IT support to clients by diagnosing and resolving hardware and software issues on phone, computers, and other devices using AI-powered diagnostic and repair tools, guiding clients through repairs and the claims process while handling sensitive account and product information with discretion.
  • Maintained store-wide technical systems, including point-of-sale terminals, network connectivity, and backend servers, to keep in-store systems running smoothly and minimize downtime.
  • Served as an on-site IT resource for store staff, troubleshooting technical issues across departments to supply day-to-day store operations.
  • 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