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Darianne Lopez

Darianne Lopez

Data Science



My Portfolio Highlights

My New Course

Introduction to Python

Data-driven magician, making the impossible possible.

My Work

Take a look at my latest work.


Introduction to Python


Intermediate Python


Introduction to Python

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

My Work Experience

Where I've interned and worked during my career.

Southwest Airlines (Apex Systems Contractor) | May 2023 - Dec 2023

Senior Data Analyst

Significantly enhanced operational efficiency by automating weekly report generation, reducing reporting time by 75% through Alteryx Designer driven workflow optimization Play a vital role in the seamless data migration from Teradata to Amazon Redshift, generating dashboards to track Teradata inventory, usage, and the migration process Showcase strong leadership and expertise by mentoring partner teams on Alteryx and Tableau best practices, fostering a data-driven decision-making culture
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Twitter | Aug 2019 - Jan 2023

Buisness Intelligence Analyst II

Led and executed the biannual data generation process for six sections of the public-facing Twitter Transparency Report, ensuring data accuracy and working collaboratively with policy teams for insightful reporting - transparency.twitter.com Automated and streamlined data analysis for various projects including - creation of performance, quality assurance, and volume forecasting dashboards for Trust & Safety Operational managers that reduced managerial reporting times by 95%; generation of Python scripts and SQL based dashboards that execute monthly and reduced the reporting time by 75%; development of a tool that automates the manual scrubbing of sensitive data thereby reducing the Legal Policy team effort by 50 hours per week Designed, developed, tested and maintained reports and Tableau dashboards that provide operational managers access to critical metrics and insights that help establish benchmarks and assist with capacity planning

USF - Information Technology Services | Feb 2018 - May 2019

Data Analyst

Generated comprehensive dashboards that identified which campus locations had the lowest IT generated computer usage and informed a 25% cost cut Automated data analysis for ITS leadership by creating and maintaining operational dashboards using Labstats and Tableau to be presented at ITS leadership meetings Communicated analytical findings to executive leadership to ensure IT resources are aligned with the highest priorities.

Twitter | Aug 2018 - Dec 2018

Data Analyst

Transitioned Engineering Effectiveness (EE) reporting flows to Tableau by creating and maintaining Tableau dashboards that house information on operational performance for the purpose of more reliable and fundamental charts of EE metrics Assisted Twitter’s Open Source team with recognizing and visualizing metrics regarding raising the standards of quality of code, increasing contributor activity, carrying out tasks associated with grouping issue queues and backlogs, generating data visualization and graphs, and contributing to upstream open source git repos Served as a data analyst point of contact for Engineering Effectiveness by generating an Ask Darianne portal to assist EE teams with ad-hoc data analysis and statistical needs using SQL and Python scripts

PayPal | May 2018 - Aug 2018

Secure Product Lifecycle Analyst

Planned and executed a two-week Internal Bug Bounty program, an incentivized result focused program that encourages PayPal employees to report security issues to PayPal’s Information Security Team Analyzed and interpreted data from the Internal Bug Bounty program to present findings with InfoSec leadership to inspire change and business impact Managed operational plans for this program such as working with engineering teams on data collection and storage, collaborating with finance teams on calculating bounty and coordinating bounty payouts, creating and maintaining the internal site for submissions using JavaScript, and analyzing submission results for program improvement

My Education

Take a look at my formal education

BS in Data ScienceUniversity of San Francisco | 2019

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