Jacob Giamanco
San Diego, US
jacobdeansd@gmail.com
(619) 592-2261
https://jacobgiamanco.vercel.app
jacob-giamanco
jgiamanco

Full Stack Engineer with 6 years of experience in end-to-end web application development, specializing in TypeScript, React, and Node.js. Proven ability to translate complex product concepts into resilient, scalable services and intuitive UIs, with a strong focus on accessibility, performance, and robust quality assurance. Skilled in optimizing systems for high-volume transactions and enhancing user experiences, eager to contribute to making financial resources more accessible within a fast-paced, collaborative environment.

Experience

Software Engineer III | Technical Product Manager III
September 2021
 — 
August 2024
PayPal Inc.
  • Developed and maintained over 2,500 TypeScript React templates for email, SMS, and alerts, ensuring standardized, high-quality communication across a global financial platform for brands like PayPal, Venmo, Honey, and Xoom.
  • Led advanced automation initiatives within marketing operations, reducing error rates by 95% through innovative technological integrations and robust testing, demonstrating a strong focus on system reliability and efficiency at scale.
  • Achieved a 70% reduction in content storage size and a 90% decrease in translation costs by leading content optimization initiatives across 60+ products, enhancing operational efficiency and performance for critical consumer-facing communications.
Software Engineer | Web Developer | Owner
September 2019
 — 
Present
JG Creative Services
  • Led the redesign and modernization of websites for small businesses, enhancing user interface and experience through best practices in architecture, coding standards, and design to improve customer engagement and site resiliency.
  • Optimized website performance through advanced SEO techniques and accessibility best practices, resulting in a 50% increase in organic traffic and improved Google rankings while effectively articulating client needs and conducting training for new systems.
  • Engineered an AI-driven Discord bot featuring personalized greetings and community polls, demonstrating full-stack development capabilities in building engaging, interactive web applications.
Web Developer
October 2020
 — 
August 2021
Petco
  • Implemented website redesigns, increasing user engagement by 25% and enhancing accessibility by 26% through strategic frontend development using HTML5, CSS, and JavaScript, ensuring a responsive and intuitive UI.
  • Led frontend development tasks, improving load speed by 20% and maintaining device compatibility with error rates under 1% by executing rigorous QA testing with Grunt/Gulp automation, ensuring high quality and performance.
  • Collaborated with e-commerce and site experience teams to develop user-friendly features, ensuring cross-browser compatibility and mobile responsiveness for optimal consumer experiences.
Frontend Web Developer
July 2020
 — 
August 2020
Junket by iTourMobile
  • Developed reusable components using Next.js, React, TypeScript, and Tailwind CSS, increasing mobile user engagement by 35% within the first month by incorporating mobile-first responsive design for a polished UI.
  • Minimized bounce rates by over 30% through a targeted revamp of core mobile application features, enhancing user experience and functionality for critical consumer workflows.
  • Improved page load times and reduced user response times by an average of 20 seconds per request by integrating streamlined RESTful API connections and optimizing rendering strategies for scale and speed.

Education

Grossmont College
August 2009
 — 
June 2013
Associate's Degree in Fine Arts, Photography

Skills

Frontend Development:
React, TypeScript, JavaScript, Redux, Zustand, HTML5, CSS3, TailwindCSS, Sass, Semantic UI, Styled-components, Next.js
Backend Development:
Node.js, Python, SQL, NoSQL, RESTful API, GraphQL, PHP, Laravel, Django, Express, Flask, MongoDB, PostgreSQL, SQLite, Nest.js
DevOps & Tools:
AWS, Docker, Git, GitHub, Jenkins, Jira, Jest, Splunk, Agile Methodologies, Code Reviews, QA Testing
AI/ML & Foundation Models:
OpenAI API, Gemini API, Large Language Models (LLMs), AI Tooling, Agentic Development Concepts
Design & UX:
Figma, WordPress, Adobe Suite, API Development, Accessibility (WCAG)