# Stefanie Davis

> Senior Data Engineer | Software Engineer | Python, PySpark, SQL, AWS | Infra & AI Consultant for Startups

Location: Greater Phoenix Area, United States
Profile: https://flows.cv/stefaniedavis

I turn complex data into products people actually use. My mission is to optimize for impact.

I started as a Teradata consultant, mastering SQL, MPP architectures, and RDBMS fundamentals. Later, I joined their tech-agnostic division, delivering end-to-end client projects with a team of X-Men level problem solvers powered by Python, SQL, and Spark.

I have helped companies like Nike, Amazon, and Health and Human Services turn raw data into actionable insights. I have held roles as Data Engineer, Data Analyst, BI Consultant, and Tableau Developer, but I wanted to go further and build products powered by data. That led me to scale pipelines, APIs, and systems using Python, Spark, SQL, AWS (EC2, EMR, S3, Lambda), Hadoop, Hive, and Postgres.

I am seeking my next adventure, where I can solve impossible problems, make a real impact, and geek out over data.

Let’s connect: stefcodes@gmail.com

## Work Experience
### Senior Software Engineer @ buildspace
Jan 2022 – Jan 2024 | Remote
- Engineered an innovative Airflow Data Quality solution that streamlined DAG management and boosted Data Engineer productivity by 30% across teams
- Designed and launched two AI/ML products with OpenAI and Cohere LLM APIs, increasing processing speed by 40% and leveraging cross-functional collaboration to implement scalable MLOps infrastructure

### Senior Data Engineer @ Qualiti
Jan 2021 – Jan 2022 | United States
- Pioneered a scalable DevSecOps framework and data models, reduced security incidents by 75%, and streamlined ETL pipelines across five business units through strategic collaboration and innovation.
- Developed and coached a high-performing team of three data engineers, advancing cloud infrastructure expertise and boosting data processing speed by 30%

### Senior Data Engineer @ Nike
Jan 2020 – Jan 2021 | Los Angeles Metropolitan Area
- Designed and orchestrated 80+ distributed cloud pipelines processing 1+ PB of data using Apache Airflow, ensuring 99.9% uptime and real-time data availability
- Engineered high-performance RESTful APIs following OpenAPI specifications, enabling seamless integration and reducing API response time by 45%
- Spearheaded ETL pipeline optimization initiative, eliminating 60% of technical debt while boosting data quality scores from 75% to 95%

### Professional Services Consultant @ Teradata
Jan 2015 – Jan 2020 | Greater Los Angeles Area
Featured Clients: 
Nike 
Role: Senior Data Engineer
- Designed Nike's global digital ecosystem data models, leveraging expertise in data architecture and scalability to ensure 99.99% SLA uptime and support 50M+ daily user interactions.
- Reduced AWS infrastructure costs by 40% and saved $20M annually through strategic optimization, ensuring peak performance for data engineering teams
- Led implementation of GDPR-compliant data governance framework, protecting 100M+ customer records and preventing $70M in potential compliance penalties 

BevMo!
Business Intelligence Engineer		
- Designed and implemented BevMo's marketing Data Mart on Teradata Cloud, accelerating marketing analytics by 60% and enabling real-time campaign optimization
- Engineered comprehensive marketing analytics platform integrating product, promotion, and customer data, driving a 40% increase in campaign ROI through data-driven decisions

### Software Engineer @ ESET North America
Jan 2014 – Jan 2015 | San Diego, California
•	Configured front and backend functionality for new KMS (Knowledge Management System)
•	Developed web analytics reports to support business intelligence and data analytics efforts  
•	Google Analytics, Site Catalyst, Crazy Egg and other tools 
•	Responded to ad hoc technology requests from the Knowledgebase Department

### Web Developer @ SDSU Career Services
Jan 2014 – Jan 2014 | San Diego, CA
- Website Updates
- Assist with the Aztec Mentor Program 
- Social Media 
- Marketing

### Government Property Administrator @ Cubic Corporation
Jan 2012 – Jan 2013
- Government Security Clearance Level: Secret
- Managed and updated Government contract records
- DCMA e-tools, WAWF, Deltek timekeeping, Sunflower asset management (oracle database), PCARSS


## Education
### Bachelor’s Degree in Information Systems
San Diego State University
Jan 2010 – Jan 2015

### Hampton High School
Jan 2006 – Jan 2009


## Contact & Social
- LinkedIn: https://linkedin.com/in/stefbuilds
- Website: https://stefbuilds.com

---
Source: https://flows.cv/stefaniedavis
JSON Resume: https://flows.cv/stefaniedavis/resume.json
Last updated: 2026-03-22