Hi, I'm Preston.

Lead Software Engineer · CoBank

• Architected and built a React/TypeScript SPA replacing a third-party collateral management platform, bringing mission-critical loan workflows in-house and reducing long-term vendor dependency.
• Designed Node.js/Express/tsoa REST APIs and PostgreSQL data-access patterns on AWS, defining service contracts, validation, and backend conventions for the new platform.
• Drove cross-functional technical decisions with product, business, and backend stakeholders to modernize internal financial systems supporting large-scale loan operations.
• Owned technical direction across frontend and API boundaries for the replacement platform, prioritizing maintainability, reliability, and long-term internal ownership.

• React
• TypeScript
• Node.js
• Express
• PostgreSQL
• AWS

Lead Engineer · Capital One

• Designed and delivered Vue.js/TypeScript applications integrated with Node.js REST APIs on AWS ECS for regulated internal workflows.
• Built automated logging, validation, and monitoring pipelines supporting regulatory and compliance requirements while reducing manual review effort.
• Led an Agile team of 3–5 engineers and implemented GitHub Actions CI/CD, improving release consistency and shortening deployment cycles.

• Vue.js
• TypeScript
• Node.js
• AWS ECS
• GitHub Actions

Senior Software Engineer · Cavallo

• Led development of multiple React/TypeScript SPAs and architected a shared component library, reducing UI duplication and accelerating delivery across teams.
• Optimized Node.js microservices on AWS Lambda to improve API responsiveness and support near-real-time data synchronization.
• Drove frontend architecture standards for performance, maintainability, and accessibility across product development.

• React
• TypeScript
• Node.js
• AWS Lambda

Front End Engineer II · Amazon

• Built and scaled a global React/TypeScript SPA used across Amazon’s PXT organization.
• Improved frontend performance through code-splitting, lazy loading, and AWS CloudFront caching strategies.
• Established WCAG accessibility standards and automated testing practices across multiple features and teams.

• React
• TypeScript
• CloudFront
• WCAG

Software Development Engineer II · Amazon

• Built a React querying interface for Alexa Local Search integrated with Node.js services and DynamoDB.
• Developed automated data validation and anomaly detection processes to improve service reliability.
• Contributed to scalable system designs capable of handling high traffic volumes and sudden load spikes.

Development Team Lead · TEKsystems (Procare)

• Led delivery of a React/ASP.NET SPA, introducing reusable UI components and frontend standards.
• Mentored developers in TDD and accessibility, improving code quality and development efficiency.

Senior Software Engineer · Comcast

• Served as primary developer for internal sales and customer-support applications using ASP.NET MVC/Web API, JavaScript/TypeScript, React, Knockout, and CSS/SCSS.

Earlier Professional Experience · Multiple Companies

• Full-stack software engineering roles delivering scalable web applications across multiple industries.