David Preston
Eagle,ID
Summary
Detailed-oriented DevOps, Data Engineer with 15+ years of proven experience. Technical expertise in AWS, database development, reporting and analytics. Strong interpersonal communication skills to support internal and client business development to drive revenue.
Overview
20
20
years of professional experience
1
1
Certification
Work History
DevOps Engineer, Data Engineer, Developer
PWG Network Solutions
01.2015 - 08.2024
- Managed all AWS cloud services utliized by PWGNS.
- Designed and developed data warehouse cluster using AWS RDS and Redshift. System stores 60 Terabytes of data.
- Developed ETL process of data import into data warehouse. Process exceeded 100 Million records daily.
- Developed web-based inventory application (PHP, Python, JavaScript, jQuery, AJAX). Inventory system ships and receives 1.5 Million units monthly.
- Created MMS reporting system to send tabular (spreadsheet) data as a picture messages to mobile devices of upper management. Required use of 3rd party APIs.
- Created API text-management service for customers to send SMS messages to their subscriber base via an XML or JSON based API.
- Website development. Worked on several company websites built on a LAMP stack (Linux/Apache/MySQL/PHP/HTML/CSS/Javascript).
- Built an automated reporting engine that queries the data warehouse and delivers more than 100 different reports daily to email recipients or FTP sites.
Part-Time Computer Science Teacher
Mount Si High School
08.2019 - 06.2024
- Developed curriculum, lesson plans, and instructional materials for introductory computer science, cybersecurity, and cloud computing courses.
- Deliver engaging curriculum through diverse methods of classroom instruction, computer lab activities and online learning systems.
- Introduced students to HTML/CSS.
- Taught various scripting languages: Python, PHP, Javascript.
- By end of semester, students were able to build web-application to securely capture data in web-form and store in MySQL database.
Business and Product Development Manager
Prepaid Wireless Group
12.2012 - 01.2015
- Engaged with potential Mobile Virtual Network Operators (MVNOs) to partner with and use our Mobile Virtual Network Enabler (MVNE) platform to sell their own cellular products.
- Onboarded new MVNO partners into our (MVNE) platform via API integration.
- Developed new internal products to support our partners’ businesses.
- Developed and executed targeted business development initiatives, leading to an expansion of the company''s client base.
- Managed multi-million dollar budgets responsibly, achieving cost savings and ensuring resources were allocated effectively.
Business Development Manager, Finance Manager
T-Mobile USA
03.2007 - 08.2011
- Oversaw wholesale revenue opportunities with new or existing wholesale partnerships.
- Managed Financial Budgeting, Planning, Forecasting, and Analysis for Wholesale Business.
- Presented new business cases for investment decisions to VP Corp Dev, and Chief Strategy Officer.
- Grew T-Mobile’s wholesale business from $44 Million to $600 Million annually.
- Negotiated commercial terms of new contracts with current and potential wholesale partners.
- Analyzed and assisted in negotiating T-Mobile's domestic and international roaming partnerships.
Enterprise Risk Services Senior Consultant
Deloitte and Touche
06.2004 - 03.2007
- Managed a global team of consultants from various countries to perform contract audits throughout North America, Europe, and Asia.
- Analyzed multi-national clients' licensing contracts to identify areas of non-compliance through data analysis.
- Recovered a minimum of $100,000 in unpaid royalties with each audit.
Consultant
Independent Wireless Consultant
08.2011 - 12.2012
- Created and implemented strategies to build out traditional distribution channels and identify new alternative channels of distribution.
- Helped clients implement best practices in setting up online charging, billing and provisioning systems for cellular customers.
- Analyzed data sets to identify trends and opportunities for process improvements within client organizations.
- Developed and implemented new products to drive incremental revenue.
Education
Master of Business Administration -
Washington State University
Pullman, WABachelor of Science Business Administration -
Lewis-Clark State College
Lewiston, IDAssociate in Arts -
Utah Valley University
Orem, UTSkills
- Cloud Computing: AWS, Azure
- Linux Operating System
- Data Warehouse Development
- SQL Development
- Application Development
- Scripting Languages: Python, Java, PHP, Javascript, C#
- Full-Stack Development
- Performance Optimization
- API Development
- ETL Tools: Matillion, AWS Glue
- Business Intelligence Tools: Power BI, QuickSite
- GitHub
- Agile Methodology / JIRA
- Problem-Solving
- Technical Writing: SDKs, Spec Guides
Certification
- AWS Certified Cloud Practitioner.
- Microsoft Certified: Azure Fundamentals.
- Certificated Career Technical Education (CTE) Teacher.
Timeline
Part-Time Computer Science Teacher
Mount Si High School
08.2019 - 06.2024
DevOps Engineer, Data Engineer, Developer
PWG Network Solutions
01.2015 - 08.2024
Business and Product Development Manager
Prepaid Wireless Group
12.2012 - 01.2015
Consultant
Independent Wireless Consultant
08.2011 - 12.2012
Business Development Manager, Finance Manager
T-Mobile USA
03.2007 - 08.2011
Enterprise Risk Services Senior Consultant
Deloitte and Touche
06.2004 - 03.2007
Master of Business Administration -
Washington State University
Bachelor of Science Business Administration -
Lewis-Clark State College
Associate in Arts -
Utah Valley University
- AWS Certified Cloud Practitioner.
- Microsoft Certified: Azure Fundamentals.
- Certificated Career Technical Education (CTE) Teacher.
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