$ whoami
Hi, I'm David Templeton.
Full-Stack Engineer & UI Craftsman
## ./about
About me
Senior Frontend Engineer with 8+ years building high-traffic, customer-facing web applications using React, Next.js, TypeScript, and Node. Experienced delivering enterprise and ecommerce platforms including Home Depot, NCR, Deloitte, and Honeywell. Focused on performance, scalability, accessibility, and measurable business impact including conversion, engagement, and page performance.
Strong collaborator who translates product goals into scalable frontend architecture, mentors engineers, and drives modern engineering practices.
Skills
React
Next.js
TypeScript
JavaScript
Java
Spring Boot
Node.js
Express
Nest.js
Redux
React Context
React Hooks
React Router
Angular
Python
HTML
CSS
SCSS
MongoDB
CosmosDB
PostgreSQL
MySQL
SQL
TypeORM
Mongoose
REST APIs
OAuth2
JWT
Swagger
OpenAPI
Azure
AWS
Git
GitHub
Bitbucket
Jira
Figma
React Testing Library
Enzyme
Jest
JUnit
Mockito
Webpack
NPM
Yarn
SSR
SSG
Code Splitting
Lazy Loading
Caching
Core Web Vitals
CI/CD
Twilio
SOAP
Claude
Cursor
GitHub Copilot
## ./projects
Projects
## ./resume
Resume
Download PDFExperience
Deloitte (Client: The Home Depot / Government & Enterprise Platforms)2023 – 2026
Full Stack Web Developer
- ▸Developed scalable full stack applications using React, Next.js, TypeScript, Java, and Spring Boot for a high-traffic ecommerce platform serving millions of monthly users.
- ▸Built reusable product and content modules used across product listing, search, and checkout flows, reducing UI development time by 30%.
- ▸Improved Core Web Vitals and page load performance by implementing SSR, caching, and code-splitting, reducing load times by 25–30%.
- ▸Developed end-to-end features across React frontends and Java microservices in distributed enterprise environments.
- ▸Partnered with product, UX, and analytics teams to deliver customer-facing features that improved engagement and supported A/B testing and data-driven decisions.
- ▸Contributed to a scalable design system and helped modernize legacy frontend architecture into modular React/Next.js applications.
- ▸Delivered customer-facing modules for a government platform used by 10K+ users, collaborating with backend teams to define API contracts and optimize Next.js + Spring Boot integrations.
- ▸Developed and maintained large-scale React/Next.js applications supporting 50K+ users, implementing server-side caching and scalable REST APIs.
- ▸Led Angular-to-React migration initiatives, improving maintainability and standardizing reusable UI patterns across applications.
- ▸Engineered end-to-end features across React, Java, and Python microservices and optimized SQL queries and REST endpoints for large datasets.
- ▸Achieved 100% Section 508 accessibility compliance and improved page performance by 25% through collaboration with design and QA teams.
- ▸Mentored junior engineers, conducted 60+ code reviews, and implemented CI/CD pipelines that reduced deployment time by 40%.
Cognizant Softvision2021 – 2023
Software Developer, Full Stack
- ▸Applied Java, SOLID principles, and CLEAN architecture to design scalable, maintainable applications, reducing technical debt and boosting long-term reliability.
- ▸Developed enterprise full stack applications using React, Java, Spring Boot, Node.js, and cloud-native technologies.
- ▸Developed SQL/NoSQL databases and 25+ RESTful APIs with Java/Spring Boot, improving query performance by 30% and accelerating feature delivery by 20%.
- ▸Constructed React applications with Context API, Redux, and React Router, enhancing UI responsiveness and improving user satisfaction by double.
- ▸Developed and integrated backend services using Java/Spring Boot and Node.js/Nest.js across distributed enterprise platforms.
- ▸Implemented and documented Node.js/Nest.js APIs with Swagger UI, reducing developer onboarding time by 40%.
Honeywell International Inc2018 – 2021
Software Developer, Frontend Developer
- ▸Built and maintained enterprise web apps with React, Redux, Java, and Spring Boot, improving scalability and system uptime.
- ▸Integrated secure APIs with OAuth2 SSO, Twilio 2FA, and SOAP/REST services, supporting 1000+ users.
- ▸Migrated legacy Angular apps to React/TypeScript, boosting performance by 40% and enabling reusable component libraries.
- ▸Helped optimize SQL/NoSQL databases (Postgres, MySQL, MongoDB, CosmosDB) to ensure 99% availability and faster queries for SaaS applications.
- ▸Developed full stack features across frontend applications and backend Java services supporting enterprise SaaS systems.
- ▸Conducted usability testing on prototypes, improving customer satisfaction scores by 20% and reducing post-launch revisions.
Education
Georgia Institute of Technology
2018Bachelor of Science in Computer Science