Hi, I'm Jorge Jacome
14+
Years Experience
1M+
Daily Users Served
Professional Experience
Building high-impact solutions at leading tech companies
Lead Software Engineer
ESPN
📅 08/2024 - Present📍 New York, NY
Current Position- ▹Lead team to develop multiple features in ESPN.com that drives users to place bets as part of the sportsbook project
- ▹Architecting features using ReactJS, TypeScript, NodeJS connected to ESPN BET and Penn backend services
- ▹Lead engineers to release features and implement application optimizations reducing bundle time
- ▹Driving performance improvements across the platform
ReactTypeScriptNode.jsESPN BET API
Lead Software Engineer
ESPN
📅 08/2024 - Present📍 New York, NY
- ▹Lead team to develop multiple features in ESPN.com that drives users to place bets as part of the sportsbook project
- ▹Architecting features using ReactJS, TypeScript, NodeJS connected to ESPN BET and Penn backend services
- ▹Lead engineers to release features and implement application optimizations reducing bundle time
ReactTypeScriptNode.jsESPN BET API
Senior Engineer II
American Express
📅 12/2018 - 07/2024📍 New York, NY
- ▹Delivered 30+ high-performance web components using ReactJS, TypeScript, Redux, JavaScript, and NodeJS, enhancing user experience and improving page load speed by 20%
- ▹Led four scrum teams in designing and releasing five major customer journey projects, significantly improving customer satisfaction by 25%
- ▹Achieved 100%+ unit testing coverage for all features, reducing bugs by 30% using JEST and React Testing Library
- ▹Developed 20+ reusable custom components, boosting code reusability by 35% and accelerating feature development by 25%
- ▹Reduced production errors by 50% through comprehensive monitoring with Splunk and swift issue resolution
- ▹Mentored 10+ engineers, improving team productivity by 30% and code quality metrics by 20%
- ▹Partnered with backend engineers to design efficient API data structures, leveraging SWR and react-hooks to optimize data fetching by 40%
- ▹Managed deployment of over 100 repositories/components, streamlining the CI/CD process with Jenkins
ReactTypeScriptReduxNode.jsJestReact Testing LibrarySWRJenkinsSplunkGraphQL
Senior Engineer II
American Express
📅 12/2018 - 07/2024📍 New York, NY
- ▹Delivered 30+ high-performance web components using ReactJS, TypeScript, Redux, JavaScript, and NodeJS, enhancing user experience and improving page load speed by 20%
- ▹Led four scrum teams in designing and releasing five major customer journey projects, significantly improving customer satisfaction by 25%
- ▹Achieved 100%+ unit testing coverage for all features, reducing bugs by 30% using JEST and React Testing Library
ReactTypeScriptReduxNode.jsJestReact Testing LibrarySWRJenkinsSplunkGraphQL
Engineer I
American Express
📅 09/2017 - 12/2018📍 New York, NY
- ▹Developed over 25 high-performance web components, improving customer interaction and reducing load times by 15%
- ▹Led three scrum teams in designing and launching a customer journey for marketing and messaging features, boosting user engagement by 30%
- ▹Attained 98% code coverage using JEST, Mocha, and Chai, reducing bug rates by 25% post-launch
- ▹Developed and maintained 30+ React components for the OneAmex platform, improving reusability by 40%
- ▹Worked as temporary Technical Project Manager, improving delivery efficiency by 20%
- ▹Led production application maintenance, cutting error rates by 40% through error monitoring and swift resolution
- ▹Mentored 20 engineers on best practices, leading to a 25% improvement in code quality and a 15% increase in productivity
- ▹Utilized GraphQL extensively to fetch data from APIs, significantly improving data retrieval efficiency
ReactJavaScriptReduxGraphQLJestMochaChaiDockerJenkins
Engineer I
American Express
📅 09/2017 - 12/2018📍 New York, NY
- ▹Developed over 25 high-performance web components, improving customer interaction and reducing load times by 15%
- ▹Led three scrum teams in designing and launching a customer journey for marketing and messaging features, boosting user engagement by 30%
- ▹Attained 98% code coverage using JEST, Mocha, and Chai, reducing bug rates by 25% post-launch
ReactJavaScriptReduxGraphQLJestMochaChaiDockerJenkins
Engineer II
American Express
📅 09/2015 - 09/2017📍 New York, NY
- ▹Spearheaded the re-platforming of the American Express MYCA Site, delivering over 20 customer-centric features that improved navigation and functionality by 30%
- ▹Participated in the initial stages of legacy migration to a robust online application for U.S. and international markets
- ▹Temporarily served as Technical Project Manager for two scrum teams and managed a team of two engineers to support production errors using Splunk
- ▹Worked on improving early-stage dashboard performance using server-side rendering and API analysis, leading to improved SLAs
- ▹Collaborated with Product Owners to refine and translate more than 15 Business Requirement Documents (BRDs) into actionable designs, accelerating development by 20%
- ▹Managed the deployment of 50+ features through the CI/CD pipeline using Jenkins, achieving a 99% success rate in QA automation testing
ReactNode.jsReduxJestSSRJenkinsSplunk
Engineer II
American Express
📅 09/2015 - 09/2017📍 New York, NY
- ▹Spearheaded the re-platforming of the American Express MYCA Site, delivering over 20 customer-centric features that improved navigation and functionality by 30%
- ▹Participated in the initial stages of legacy migration to a robust online application for U.S. and international markets
- ▹Temporarily served as Technical Project Manager for two scrum teams and managed a team of two engineers to support production errors using Splunk
ReactNode.jsReduxJestSSRJenkinsSplunk
Java UI Developer
iGATE
📅 11/2014 - 09/2015📍 Warren, NJ
- ▹Created internal websites for company vendors providing product and service information
- ▹Developed map application using Java, JSF, Servlets integrated with Google Maps API
- ▹Built Chub ecosystem providing vendors with client and company location mapping
JavaJSFServletsHTMLCSSJavaScriptjQueryAjaxGoogle Maps API
Java UI Developer
iGATE
📅 11/2014 - 09/2015📍 Warren, NJ
- ▹Created internal websites for company vendors providing product and service information
- ▹Developed map application using Java, JSF, Servlets integrated with Google Maps API
- ▹Built Chub ecosystem providing vendors with client and company location mapping
JavaJSFServletsHTMLCSSJavaScriptjQueryAjaxGoogle Maps API
Java UI Developer
Systems USA
📅 01/2013 - 10/2014📍 Harrisburg, PA
- ▹Java Developer consultant at Deloitte leading development for Virginia Case Management System
- ▹Built application processing citizen data and eligibility for state benefits (100,000+ users)
- ▹Participated in agile ceremonies and developed UI using JSP, HTML, CSS, jQuery and AJAX
JavaJSPOracle DBHTMLCSSjQueryAjax
Java UI Developer
Systems USA
📅 01/2013 - 10/2014📍 Harrisburg, PA
- ▹Java Developer consultant at Deloitte leading development for Virginia Case Management System
- ▹Built application processing citizen data and eligibility for state benefits (100,000+ users)
- ▹Participated in agile ceremonies and developed UI using JSP, HTML, CSS, jQuery and AJAX
JavaJSPOracle DBHTMLCSSjQueryAjax
Java UI Developer
Softtek
📅 01/2011 - 12/2012📍 Aguascalientes, Mexico
- ▹Engineered Java applications for GE Treasury optimizing database interactions with Oracle DB
- ▹Improved query performance by 2 seconds per task through indexing, efficient joins, and parallel processing
- ▹Developed UI using JSP, HTML, CSS and jQuery with Java, Servlets, Struts and Spring
- ▹Led team as Technical Project Manager for 1 year coordinating multiple feature launches
JavaServletsStrutsSpringJSPOracle DBHTMLCSSjQuery
Java UI Developer
Softtek
📅 01/2011 - 12/2012📍 Aguascalientes, Mexico
- ▹Engineered Java applications for GE Treasury optimizing database interactions with Oracle DB
- ▹Improved query performance by 2 seconds per task through indexing, efficient joins, and parallel processing
- ▹Developed UI using JSP, HTML, CSS and jQuery with Java, Servlets, Struts and Spring
JavaServletsStrutsSpringJSPOracle DBHTMLCSSjQuery
Web Developer
Radycal Systems
📅 10/2010 - 12/2011📍 Guadalajara, Jalisco, Mexico
- ▹Led development for school management in PHP, AJAX, JavaScript and HTML with MySQL
- ▹Created features like add student personal information and attending grade, add teachers and classes they are giving
- ▹Built report of students grades per class
PHPMySQLAjaxJavaScriptHTML
Web Developer
Radycal Systems
📅 10/2010 - 12/2011📍 Guadalajara, Jalisco, Mexico
- ▹Led development for school management in PHP, AJAX, JavaScript and HTML with MySQL
- ▹Created features like add student personal information and attending grade, add teachers and classes they are giving
- ▹Built report of students grades per class
PHPMySQLAjaxJavaScriptHTML
Web Developer
Nettours
📅 11/2009 - 10/2010📍 Guadalajara, Jalisco, Mexico
- ▹Developed booking website and workflows for Nettours, enhancing online experience for customers
- ▹Built features using PHP, Ajax, JavaScript, HTML, CSS and MySQL
PHPMySQLAjaxJavaScriptHTMLCSS
Web Developer
Nettours
📅 11/2009 - 10/2010📍 Guadalajara, Jalisco, Mexico
- ▹Developed booking website and workflows for Nettours, enhancing online experience for customers
- ▹Built features using PHP, Ajax, JavaScript, HTML, CSS and MySQL
PHPMySQLAjaxJavaScriptHTMLCSS
Awards & Recognition
🏆
Chairman's Award
American Express
Employee Outstanding Year Performance
02/2018
Technical Skills
Technologies and tools I use to build exceptional products
💻
Frontend Development
React.js
9 yrs95%
TypeScript
6 yrs92%
Next.js
4 yrs88%
JavaScript (ES6+)
14 yrs95%
HTML5 & CSS3
14 yrs95%
Redux
7 yrs90%
React Hooks
5 yrs93%
🎨
Styling & Design
Tailwind CSS
3 yrs90%
Bootstrap
8 yrs85%
Responsive Design
10 yrs95%
Accessibility (a11y)
6 yrs88%
🖥️
Backend & APIs
Node.js
6 yrs88%
GraphQL
4 yrs82%
REST APIs
10 yrs90%
Java
8 yrs80%
🗄️
Databases
MongoDB
5 yrs80%
MySQL
10 yrs82%
Oracle DB
6 yrs78%
Redis
4 yrs75%
☁️
DevOps & Cloud
Docker
5 yrs82%
AWS
4 yrs78%
CI/CD
6 yrs85%
Git
12 yrs95%
✅
Testing & Quality
Jest
6 yrs90%
Selenium
5 yrs85%
Unit Testing
8 yrs92%
Performance Testing
6 yrs88%
🔧
Tools & Monitoring
JIRA
9 yrs90%
Splunk
5 yrs80%
Agile/Scrum
10 yrs95%
⚡
Other Languages
Python
3 yrs70%
Kotlin
2 yrs65%
Go
1 yrs60%
Languages
🌐
Spanish
Native
🌐
English
Fluent
🌐
Portuguese
Intermediate
🌐
French
Intermediate
Featured Projects
A selection of my work showcasing different technologies and domains
HechoMX - Tienda Virtual
⭐ FeaturedFull-featured e-commerce platform built with modern web technologies. Includes product catalog, shopping cart, and checkout flow.
TypeScriptReactNext.jsTailwind CSS
📊Full-stack e-commerce solution
🚀Production-ready
Interview Prep - QA UI Engineer
⭐ FeaturedComprehensive interview preparation platform for QA and UI Engineers. Features coding challenges, system design problems, and technical interview questions.
TypeScriptReactTesting Libraries
📊Interview preparation tool
🚀Educational resource
Lyra - Frontend Framework
⭐ FeaturedConsole-time, aTly-first, signal-driven front-end framework. Modern approach to building reactive user interfaces.
TypeScriptSignalsModern JS
📊Signal-driven architecture
🚀Open source framework
Finance Dashboard
⭐ FeaturedReal-time financial analytics dashboard with data visualization, portfolio tracking, and market insights.
JavaScriptReactChart.jsREST API
📊Financial data visualization
🚀Real-time analytics
Let's Connect
Interested in discussing innovative projects and technical challenges
Let's build something great
Whether you have an interesting project, want to discuss technology, or just connect with fellow engineers — I'm always happy to chat.
📍
Location
New York, NY
💼
Current Role
Lead Software Engineer @ ESPN
🚀
Interests
Innovative Projects