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

Full Stack Software Engineer with 6 years of experience in designing, developing, and optimizing robust applications. Proficient in JavaScript/TypeScript and Python, with a strong background in relational databases (PostgreSQL), automating system-level tasks, and collaborating with operations teams. Experienced with Linux environments, cloud infrastructure (AWS), and foundational systems knowledge. Adept at transforming complex requirements into scalable, high-performance solutions that enhance operational efficiency and reliability.

Experience

Software Engineer III | Technical Product Manager III
September 2021
 — 
August 2024
PayPal Inc.
  • Managed and maintained a library of 2,500+ TypeScript React templates powering transactional communications for PayPal, Venmo, Honey, and Xoom, supporting billions of customer interactions annually.
  • Automated operations workflows, reducing manual intervention by 80% and cutting error rates by 95%, resulting in significant time savings and improved reliability at scale; worked closely with operations teams to implement and monitor these solutions.
  • Led a cross-functional initiative to optimize content storage, reducing storage requirements by 70% and translation costs by 90%, directly impacting operational budgets and delivery speed within a large-scale system environment.
Software Engineer | Web Developer | Owner
September 2019
 — 
Present
JG Creative Services
  • Redesigned and modernized 15+ client websites for various sized businesses, increasing average session duration by 40% and reducing bounce rates by 30% through improved UI/UX and responsive design.
  • Developed and deployed an AI-powered Discord bot using Python, automating community management tasks and growing server engagement by 60%, demonstrating hands-on backend engineering and system-level automation.
  • Administered web server environments on Linux systems, including configuration and maintenance, ensuring consistent uptime and performance.
Web Developer
October 2020
 — 
August 2021
Petco
  • Revamped Petco’s e-commerce frontend, increasing user engagement by 25% and improving accessibility scores by 26% using modern HTML5, CSS, and JavaScript.
  • Enhanced site performance, reducing average page load times by 20% and maintaining device compatibility with error rates under 1% through rigorous QA automation and cross-browser testing, impacting system stability.
Frontend Web Developer
July 2020
 — 
August 2020
Junket by iTourMobile
  • Built reusable React and Next.js components, boosting mobile user engagement by 35% within the first month through mobile-first design and performance optimizations.
  • 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, requiring strong systems understanding.

Education

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

Skills

Programming Languages & Frameworks:
JavaScript, TypeScript, Python, React, Node.js, Next.js, HTML5, CSS3, Django, Express, Flask, PHP, Laravel
Databases & Data Management:
PostgreSQL, MongoDB, SQL, NoSQL, SQLite
Systems & Infrastructure:
Linux, AWS, Docker, Cloud Infrastructure, Network Fundamentals, System Administration, Security Best Practices (familiarity)
DevOps & Tools:
Git, GitHub, Jenkins, Jira, Agile Methodologies, CI/CD, Code Reviews, QA Testing, Automation, Splunk, Atlassian Products (Jira)
API & Architecture:
RESTful API, GraphQL, Microservices, Scalable Web Architecture
AI/ML & Concepts:
OpenAI API, Gemini API, Large Language Models (LLMs), AI Tooling, Agentic Development Concepts