Abraham Cornejo

Fullstack Developer

• About 14 years of experience in designing, developing web applications using BLAZOR, DAPPER, NET CORE, ASP.NET MVC, C#, LINQ, WEB API, PHP, MYSQL, HTML 4/5, CSS 2/3, LESS, • About 5 years as scrum master, leader, using scrum as methodology. • Experience in developing web application using React, React Native, Vue, Angular JS, Angular 2-17+ • Experience with JavaScript, typescript, Backbone, Node JS, EMS 5/6, Lodash, PHP, LARAVEL, jQuery, Ajax, XML and JSON. • Experience with AWS, Lambda functions, Dynamo DB, Cloud Watch, API Gateway, Docker, CI Jenkins, Pipe lines. • Experience with Azure, CI with Kubernetes, Blob Storage • Experience creating and consuming web services (REST, SOAP) with WEB API, WCF. • Experience with front-end development of responsive solutions using LESS, SASS, CSS3 and Bootstrap. • Experience with NoSQL Database such as MongoDB • 6+ years of full-stack developer who has been in the whole process of develop complex solutions for several purposes: management, financial, sales, purchase, marketing and HR in wide range of technologies, tools and frameworks. • 7+ years of experience with database development and management: Postgres, MySQL, SqlServer, Oracle. • Proficient Object Oriented programmer • Expert in developing windows applications, Service Oriented Architecture (SOA) based Applications, web applications, windows services in Microsoft Visual Studio. • Experience in creating interactive design deliverables such as Wireframes with Figma, Site maps, Process maps, Mockups, UI Specification, Working prototypes, UX Design techniques and other artifacts to describe the Intended user experience. • Professional level experience in design, development and implementation of Internet/Intranet applications using C#, ASP.NET MVC, VB.NET, ADO.NET, Entity Framework, AJAX, IIS, HTML, XHTML, VB Script, Silverlight, XML, UML and PL/SQL and SQL Server. • Experience using API Video player such as JW Player, Kaltura. • Experience on developing Responsive web Design using Adobe Photoshop CS5/CS6 and Illustrator CS6 and experienced in designing components and services by using object oriented analysis and design techniques. • Professional in Creating Templates, Mockups and Prototypes, Web Interfaces, Layouts and Flow of Future Pages. • Expertise in testing APIs, Web Services for SOA, Databases and UI. • Used SVN, GIT. TFS for version control and Clear Quest for bug fixing. • Experience with Styling and Responsive Design techniques using technologies such as LESS, and SASS • Advanced experience with Facebook API, Twitter API, YouTube API and Google Maps API for websites • Excellent problem solving abilities and critical thinking. • Thorough experience in testing and debugging.

Mexico, Texcoco

Experience

Full Stack Engineer

May 2025 - January 2026
RSYSTEMS
RSYSTEMS
Mexico, City
  • Facilitated scrum activities and ensured the productivity of the team.
  • Managed daily stands-ups, planning, retrospective, resulting in a more efficient workflow.
  • Worked closely with product owners to manage backlogs, that led to a 25% increase in project delivery speed.
  • Used Jira for backlog refinement and managed to reduce backlogs by 30%.
  • Worked with SQL server, SP, functions, Cursors
  • Using Blazor UI to Create Blazor components from scratch
  • Using Dapper as ORM
  • CI Integration with pipelines
  • Design, develop React component with hooks, React native for apps and Angular
  • Functional testing with Mock, MT
  • Used Solid clean code, AWS creating lamda function, Dinamo DB, S3 to store images
  • Created Micro services with C#, Asp Net core
  • Extensively used Git for version controlling and regularly pushed the code to GitHub.
  • Used JIRA as the bug tracking system to track and maintain the history of bugs/issues on everyday basis.
  • Translated design team’s UX wireframes and mockups into responsive, interactive features, using HTML/CSS and React
  • Upload images with AWS S3 in Blazor
  • Used jenkins to cretae CI Pipelines
Reactjs
Typescript
Mobx State Tree
Nestjs
AWS
Git
Flutter
JSS

Full Stack Developer

February 2017 - November 2018
KAMBDA
KAMBDA
Guadalajara, Mexico
  • Leadership on Front End development in the Solutions Engineering team.
  • Development of a UI Components library using Blazor.
  • Web platform development for creating custom OTT applications in order to demonstrate product capabilities on the tradeshow.
  • Development of prototypes, demos, and proofs of concepts (PoC's) used by the sales team at the trade shows.
  • Managed software development team and Agile/scrum methodology.
  • Oversaw a team of 10 developers and delivered multiple complex projects in time
  • Collaborate closely with the Data and Analytics Specialist to design, integrate, and optimize reporting and analytics solutions
  • Implemented somy scrum techniques which improved problem detection by 35%.
  • Worked in vb net, EF, Aspnet MVC, Azure, SQL server, SP, functions, Cursors
  • Design, develop React component with hooks, React native for apps and Angular,
  • Fix issues in python, Laravel.
  • Using python to read directories and xml files to execute process in background
  • Functional testing with Jasmin
  • Used Solid clean code, AWS creating lamda function, Dinamo DB, S3 to store images
  • Used mongo DB with roboto.
  • Called the Restful web services calls for POST, PUT, DELETE and GET methods.
  • Extensively used Git for version controlling and regularly pushed the code to GitHub.
  • Used JIRA as the bug tracking system to track and maintain the history of bugs/issues on everyday basis.
  • Translated design team’s UX wireframes and mockups into responsive, interactive features, using HTML/CSS and React
  • Using SASS to create variables, nested rules and inline imports in CSS.
  • Developed Single Page applications using WEBPACK(ES6), React, Angular using components, directives using TypeScript.
  • Using docker to create images to test QA team
  • Using Node JS to download packages and configuring the local server
  • Using SCRUM Agile Methodology
  • Next JS framework.
  • Create Web API with .NET and Angular app for landing page.
  • Fixing Telerik issue and adding new functionalities
  • Used jenkins to cretae CI Pipelines.
  • Upload images with AWS S3 in Blazor view with Telerik.
Reactjs
Redux
Nodejs
Hapijs
PostgreSQL
Git
Stylus

Frontend Engineer

July 2015 - January 2017
Nagarro
Nagarro
Guadalajara, Mexico
  • Leadership in Frontend development in the Value Engineering team.
  • Development of prototypes, demos, and proofs of concepts (PoC's) used by the sales team at the trade shows.
  • Development of web applications used in large-scale events such as the National Association of Broadcasters Show (NAB) in Las Vegas, Nevada and the International Broadcasting Convention (IBC) in Amsterdam in order to attract new prospects to the Company.
  • Working with products/services of third-party Companies such as Microsoft, MPP Global Solutions, Vindicia and Gigya.
  • Design, develop and test components using Angular 8(typescript, JavaScript)
  • Using node and express to create rest services
  • Created rest services with mongo using mongoose
  • Used Web services (REST) for transmission of large blocks of XML/JSON
  • Develop new UI functionality for multithreaded user-facing applications running on touchscreen devices, using React.
  • Creating Restful services using web API with store procedures and linq
  • Called the Restful web services calls for POST, PUT, DELETE and GET methods.
  • Extensively used Git for version controlling and regularly pushed the code to GitHub.
  • Used JIRA as the bug tracking system to track and maintain the history of bugs/issues on everyday basis.
  • Translated design team’s UX wireframes and mockups into responsive, interactive features, using HTML/CSS and React
  • Using SASS to create variables, nested rules and inline imports in CSS.
  • Developed Single Page applications using WEBPACK(ES6), React, Angular 8 using components, directives using TypeScript.
  • Using AWS, S3, lamda functions
  • Using React to create the components to create the user interface.
  • Using Node JS to download packages and configuring the local server
  • Using SCRUM Agile Methodology
  • CI Integration with pipelines
Reactjs
Flux
Angularjs
Nodejs
Expressjs
PostgreSQL
Git
Sass

Frontend Engineer

May 2014 - July 2015
VCreativeInc
VCreativeInc
Mexico, Mexico
  • Design, develop and test components using Angular 8(typescript, JavaScript)
  • Developed user interface by using the React JS, webhooks, Flux for SPA development.
  • Worked in using React JS components, Forms, Events, Keys, Router, Animations and Flux concept.
  • Used Web services (SOAP and RESTful) for transmission of large blocks of XML/JSON
  • Develop new UI functionality for multithreaded user-facing applications running on touchscreen devices, using React.
  • Called the Restful web services calls for POST, PUT, DELETE and GET methods.
  • Extensively used Git for version controlling and regularly pushed the code to GitHub.
  • Used JIRA as the bug tracking system to track and maintain the history of bugs/issues on everyday basis.
  • Developed and maintained critical components of e-commerce website, including shopping cart, quick view, and checkout page, using React components
  • Translated design team’s UX wireframes and mockups into responsive, interactive features, using HTML/CSS and React
  • Using SASS to create variables, nested rules and inline imports in CSS.
  • Developed Single Page applications using WEBPACK(ES6), React, Angular 8 using components, directives using TypeScript.
  • Using docker to create images to test QA team
  • Using React to create the components to create the user interface.
  • Using Node JS to download packages and configuring the local server
  • Using SCRUM Agile Methodology
  • Making unit testing using Jasmin
jQuery
Angularjs
PHP
Laravel
MySQL
Git
Sass

Net Deveoper

February 2013 - May 2014
PerfectForms
PerfectForms
Mexico, Mexico
  • Made the application responsive using Bootstrap.
  • Design user interfaces with razor
  • Create front-end components
  • Using Backbone to create components
  • Build and consume REST Services using WEB API
  • Migrating Flash application to single page using new technologies. Solving bugs, creating new modules..
  • Using React to create the components to create the user interface.
  • Using Node JS to download packages and configuring the local server
  • Using SCRUM Agile Methodology
jQuery
PHP
Symfony
MySQL

Net Deveoper

February 2013 - May 2014
Planet Media
Planet Media
Mexico, Mexico
  • Made the application responsive using Bootstrap.
  • Creating authentication web page using Auth Authentication
  • Design user interfaces react an angular
  • Create front-end components
  • Build and consume REST Services
  • Creating angular 4 application using node JS and Javascript.
  • Using angular to create the components to create the user interface
  • Using observables to consumed the web Rest full services with angular
  • Consumed AWS services to storage the information in MongoDB.
  • Creating components with Angular 6
  • Using Node JS to download packages and configuring the local server
  • Using SCRUM Agile Methodology
  • Laravel to create restfull services
jQuery
PHP
Symfony
MySQL

Net Deveoper

February 2013 - May 2014
Bhuvi IT Solution
Bhuvi IT Solution
Mexico, Mexico
  • Made the application responsive using Bootstrap.
  • Creating Restful Services with WEB API
  • Using ORM such as Entity Framework to work all the business logic
  • Using C#, LINQ, Stores Procedures, functions to create all the back end
  • Upload Video using JW Player and KALTURA
  • Front end developed in React JS
  • Manipulate Video with JW Player, drag and drop videos dynamically with JQuery
  • Involved in web designing using HTML5, XHTML, CSS3, JavaScript and extensively used Table less Design in CSS for positioning.
  • Using Node JS to download packages and configuring the local server
  • Using SCRUM Agile Methodology
jQuery
PHP
Symfony
MySQL

Net Deveoper

February 2013 - May 2014
SPR
SPR
Mexico, Mexico
  • Involved in the Software Development Life Cycle including Requirement Analysis, Design, Implementation, Testing and Maintenance.
  • Front-end development using HTML5, CSS3 (w/ SASS and LESS pre-processor), jQuery, AngularJS, Ajax, Bootstrap for responsive websites from scratch.
  • Upload Video using JW Player and KALTURA
  • Migrate modules to Angular JS
  • Manipulate Video with JW Player, drag and drop videos dynamically with JQuery
  • Involved in web designing using HTML5, XHTML, CSS3, JavaScript and extensively used Table less Design in CSS for positioning.
  • Using Node JS to download packages and configuring the local server
  • After making the applications to be responsive, worked on different mobile devices bugs (like IOS and android).
  • Extensively worked with making calls to APIs to fetch the data from the backend as JSON response and parse it on the UI for DOM/CSS Manipulation.
  • Developed page layouts, Navigations and presented designs and concepts to the clients and the management review.
  • Designed Frontend with an object oriented JavaScript Framework like JQuery, Angular JS.
  • Used JQuery to make the HTML, DHTML and CSS code interact with the JavaScript functions to add dynamism to the web pages at the client side.
  • Implemented procedures for creation of wireframes and prototypes for new user interfaces.
  • Front end development using HTML5, CSS3, JavaScript, JQuery, Angular, Bootstrap, and Data table JS, Editable JS.
  • Co-ordinate with QA for testing, Production releases, Application deployment and integration.
  • Back end development using C# and PHP.
  • Used CSS preprocessor LESS and WEB Essentials for converting LESS to CSS file while deployment.
  • Assuring graceful degradation for older browsers using Modernize.
  • Database design and integration with MySQL.
  • Carry out all stages in the development cycle implementing agile methodologies.
  • Using SCRUM Agile Methodology
jQuery
PHP
Symfony
MySQL

Net Deveoper

February 2013 - May 2014
Global Hitss
Global Hitss
Mexico, Mexico
  • Expertise in object oriented JavaScript Libraries including Various Plug-INS like Angular.js and Ext.js.
  • Developed all the UI pages using HTML, XML, XHTML, DOM, CSS, JSON, JavaScript, jQuery, Ajax,Bootstrap
  • Implemented JQuery (CSS Layout and DOM manipulation and element selections) for several different business site updates, such as page layout changes and content updates.
  • Created and tested scripts using JQuery on various browsers Chrome, Firefox, Opera, Safari, IE.
  • Involved in developing User interface using SQL, JavaScript, Ember-Js, jQuery, AngularJs, HTML5, and CSS/CSS3.
  • Working on full stack web application for building trademark research platform which can be used by the researchers and lawyers to query upon trademarks requested by the clients
  • Has worked on Angular JS which combines web applications with Model View Controller capability to make development and testing of code efficient.
  • Very closely involved in the Product Backlog (User stories) grooming with the Product Owners, Business Analyst's and Subject Matter Expert's (SME's).
  • Involved in performing code reviews along with the team to ensuring development standards.
  • Worked in fully agile environment with three week sprints during the development of efficient and lightning fast UI.
  • Used CSS mixins and pre-selectors for manipulating shadow dom styles and used CSS3 media queries to enhance responsiveness of the application.
  • Developed efficient re-usable methods featuring communication between parent, sibling and child elements.
  • Implemented one document one query structure for retrieving the data from relational data bases.
  • Ability to deliver work efficiently under fast moving deadlines and extreme pressure.
  • Customized existing web components to meet the required functionality.
  • Worked closely with off shore team to ensure compatibility of code.
  • Created brochure sites, simple forms, and complex search pages interacting with SQL Server and integrated maps and videos in forms of views and panels in Joomla layout as per requirement
  • Worked on CSS Background, CSS Positioning, CSS Text, CSS Border, Pseudo classes, Pseudo elements etc.
  • Good experience working on CSS Background, CSS Positioning, CSS Text, CSS Border, CSS Margin, CSS Padding, CSS Table, Pseudo Classes, Pseudo Elements and CSS Behavior's in CSS.
  • Excellent experience in developing web pages complying with Web Content Accessibility Guidelines (WCAG) and ability to apply W3C web standards.
  • Designed dynamic and multi-browser compatible pages using HTML5, CSS3, JQuery and JavaScript.
  • Application developed was completely responsive featuring pixel perfect design.
  • Responsive Web design and development, application development using HTML, JavaScript, Jquery, Stylus and Bootstrap.
  • Developed the User Interface using HTML 5, CSS3, JavaScript, JQuery and AJAX
jQuery
PHP
Symfony
MySQL

TV Azteca

February 2013 - May 2014
TV Azteca
TV Azteca
Mexico, Mexico
  • Developed presentation and UI components using AJAX, XML, HTML, CSS, Custom Tag and JavaScript.
  • Extensive use of Twitter Bootstrap framework to achieve RWD, i.e., makes the portal compatible for various screen resolutions which are trending in the market today.
  • Debug the application using Firebug to traverse the documents and manipulated the Nodes using DOM and DOM Functions.
  • Creating and consumed web services ASMX and WCF
  • Migrate Videos from Silverlight to JW Player.
  • A content management system application used for developing publishing, editing and modifying content, organizing, deleting as well as maintenance from a central interface. Developed next generation Homepage for Chase which is highly compactable for all the browsers.
  • Designed dynamic and multi-browser compatible pages using HTML5, CSS3, JQuery and JavaScript
  • We will be using Node.js to build a scalable network application where it can handle many connections concurrently.
  • Worked with the team, helping them build out their markup and CSS.
  • Built custom directives to build application components for rendering grids and maps.
  • Used Selectors, Events, Ajax and Dom Manipulation modules in JQuery for updating content on DOM nodes.
  • Developed page layouts, Navigations and presented designs and concepts to the clients and the management review.
  • Streamlined the Responsive Web Design to enhance the Mobile User Experience and developed designs for the prototypes for the Mobile UI using Git Hub
  • Designed and developed AJAX calls to populate screens parts on demand
  • Created dynamic HTML5 pages with JavaScript and CSS3 for their Intranet software product.
jQuery
PHP
Symfony
MySQL

Desiteg

February 2013 - May 2014
Desiteg
Desiteg
Mexico, Mexico
  • Created web pages for each project using XHTML, CSS, JQUERY and JavaScript.
  • Extensive usage of BOOTSTRAP and LESS CSS for Responsive design
  • Involved in Agile/ full software development life cycle. Designing, coding, testing, debugging and support.
  • Worked with the team of architects and back-end Developers to gather requirements, enhance the application functionality, and add new features.
  • Worked in a team involved in developing the UI, layout and front-end programming for the web applications that matches requirements of sprint.
  • Improved user experience by designing front-end interface mock-ups and adjusting UX flows/ wireframes.
  • Developed table less HTML in a DOM based architecture. Responsible for the overall layout design, color scheme of the web site using HTML, XHTML, and CSS.
  • Validated all the HTML/XHTML and CSS code according to W3C and made it complaint.
  • Used AJAX frameworks like JQuery, JSON to develop rich GUIs and also involved in performance tuning the website.
  • Extensively involved design discussions and user experience sessions to provide inputs on the layout.
  • Provided graphic and artistic support for web enhancement and new creative initiatives.
  • Designated UI architecture for the internal web application and worked with designers to constructs conceptual Wireframes and Mockups.
  • Using advanced level of JQUERY, AJAX, JavaScript, CSS and pure CSS layouts.
  • Interacted with java controllers (JQUERY, Ajax, and JSON to write/read data from back end systems).
  • Designed and developed intranet web applications using JavaScript and CSS.
  • Responsible for the design of client websites right from the conceptualization stage to its implementation and maintenance.
  • Designed and developed web pages using with HTML5, DHTML, CSS3, Ajax and jQuery based on the W3C standards and Web2.0.
  • Used to update the HTML pages using JQUERY AJAX via JSON response. Environment: HTML4, XHTML, CSS2, JavaScript, JQuery, AJAX, JSON, JavaScript, Tomcat Apache, Firebug DEV tool and Eclipse IDE.
jQuery
PHP
Symfony
MySQL

Education

Instituto Tecnologico de México, campus Acapulco
Instituto Tecnologico de México, campus Acapulco
Computer Engineering, Software2006 - 2011
IoT
IoT
Developing and Deploying an Internet of ThingsAugust 2019
TypeScript Workshop with Michel Weststrate + ConferenceJune 2019
Lynda.com
Lynda.com
Performing Complex State Management with ReduxSeptember 2018
Lynda.com
Lynda.com
React: Testing and DebuggingSeptember 2018
Javascript FundamentalsDecember 2017
Graphic Design CertifiedJune 2015
Oracle Certified Professional, Java SE 6 ProgrammerJanuary 2013
Web Development CertifiedSeptember 2011
Code School
Code School
Shaping up with angularjsSeptember 2011

Current Stack

Reactjs
Typescript
Mobx State Tree
AWS
Nodejs
Nestjs
Jest
React Testing library
Puppeteer
Sentry
Git
Jira
HTML5
CSS3
Zeplin
Flutter
JSS

I Have Used

Javascript
Redux
Flux
Angularjs
Netlify
Zeit
Nextjs
Enzyme
Mocha
Java
Styled Components
Sass
Stylus

Languages

English
Professional working proficiency
Spanish
Native or bilingual proficiency

Award

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