Marlon Mantilla
Verified Expert in Engineering
Software Developer
Medellín - Antioquia, Colombia
Toptal member since July 21, 2014
Marlon is a full-stack developer with 10+ years of professional experience in software development. As a developer, Marlon's expertise is in the implementation of best practices in creating apps. He's worked for companies that offer healthcare IT services. He has built chatbots with React and also web apps for administration. Marlon has strong expertise in Ruby on Rails and Node.js as well.
Portfolio
Experience
- Ruby - 10 years
- Ruby on Rails (RoR) - 10 years
- CSS - 10 years
- HTML5 - 10 years
- JavaScript - 10 years
- React - 6 years
- Node.js - 6 years
- React Native - 5 years
Availability
Preferred Environment
MacOS, Unix, Git, Visual Studio Code (VS Code), Node.js
The most amazing...
...product I've developed is a social network for managing community groups. It features a cool calendar widget and allows users to embed the calendar.
Work Experience
Front-end Developer
MagicLinks, Inc
- Maintained several internal reporting tools built with Next.js and Ruby On Rails.
- Tracked and fixed current platform production bugs.
- Optimized code and proposed refactoring for old repositories.
Senior React | React Native Developer
Animo Services LLC
- Helped build a Flutter app for fintech Glorifi from scratch. Built base UI components.
- Helped implement Okta authentication for authentication and authorization.
- Worked with product owners to manage a small team for building fintech integration. Helped implement Plaid into the app flows for extracting financial insights per user.
Senior Full-stack Developer
Syllable
- Developed a React admin tool for making video conferences.
- Set up a CI integration with Docker, CircleCI, and AWS, allowing us to automate a deployment process for a client.
- Made a chatbot with React connected to an API that allowed patients to communicate with their hospital.
Full-stack Developer
Infuse.us
- Implemented features in a hybrid Angular/Cordova app.
- Added features to a Rails API.
- Fixed bugs and refactored for old modules.
Full-stack Developer
Diagnotes.com
- Added features to the Rails API.
- Added features to a front-end application based in Angular.
- Fixed bugs and refactored code.
- Wrote automated tests.
- Maintained a Scrum board and added tasks.
Full-stack Developer
Golazzos
- Built site markup from scratch and implemented React components.
- Developed the site's API and set up deployment with Capistrano.
- Implemented a prize system for workers using the site.
Ruby on Rails Developer
Cellbreaker
- Built a Ruby on Rails administration panel.
- Created a scraper tool for fetching information.
- Handled admin tool styling and layout.
- Developed Backbone.js models and set up components.
Senior Ruby on Rails Developer
Globant
- Set up an application deployment process with Capistrano.
- Built a Backbone.js front end and wrote tests in RSpec and Capybara.
- Refactored legacy Rails application code and wrote markup and CSS.
Ruby on Rails Developer
Koombea
- Created an embeddable jQuery calendar widget.
- Set up background jobs for sending huge email campaigns.
- Set up Capistrano deployment for projects.
- Wrote HTML and CSS for Rails apps.
- Managed teams as Scrum Master.
Senior Java Developer
Extreme Technologies
- Built JSP web interfaces.
- Ensured consistency on SQL queries.
- Built a GPS interface.
- Rewrote legacy code and implemented new features.
- Built a location API.
PHP Developer
Evoluziona
- Refactored legacy code.
- Set up a Cake PHP project.
- Wrote JavaScript/jQuery reusable components.
- Worked closely with designers and programmers, applying design comps to various pieces of functionality.
- Developed plug-ins for jQuery and MooTools.
Experience
Expenses Tracker App
Nooddle
http://nooddle.es/Education
Master's Degree in Computer Engineering
Universidad Del Norte - Barranquilla, Colombia
Skills
Libraries/APIs
React, SendGrid API, jQuery, REST APIs, React Navigation, Node.js, Face.com API, jQuery UI, Backbone.js, React Router, Stripe, Emotion Library, Google Maps
Tools
Front-end Build Tools, Expo, Sentry, GitHub, Adobe Photoshop, Git, Sublime Text 3, Jira, Webpack 4, Figma, CircleCI, Asana
Languages
HTML, CSS, HTML5, JavaScript, CSS3, Ruby, TypeScript, PHP, Python, CoffeeScript, SQL, GraphQL
Frameworks
Ruby on Rails (RoR), React Native, Redux, Tailwind CSS, ZURB Foundation, Ember.js, Vanilla JS, Flutter, Express.js, Jakarta Server Pages (JSP), Angular, Hapi.js, Django, Next.js
Paradigms
Scrum, Mobile Development, Agile Software Development, Continuous Integration (CI), Continuous Delivery (CD), Metaprogramming
Platforms
Amazon Web Services (AWS), Mobile, Visual Studio Code (VS Code), MacOS, Unix, Linux, Docker, Mapbox, iOS, Android
Storage
PostgreSQL, MySQL, MongoDB
Other
Front-end, APIs, Architecture, Technical Leadership, Full-stack, Back-end, UI Components, Design Systems, Ember CLI, Apollo, User Interface (UI), User Experience (UX), Product Management, eCommerce, Google Play Console, Mobile UX, Integration, Artificial Intelligence (AI)
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