silicon vallina - software development

Specialized in custom integrations for eBay (eBay API, eBay Web Services, Open eBay Apps, eBay Partner Network, eBay Compatible Applications)

Services

Frontend
  • HTML / HTML5
  • CSS / CSS3
  • Javascript (jQuery, Ajax, JSON)
Backend
  • Java / JEE (8+ years)
  • PHP (3+ years)
  • SOA
eCommerce
  • Magento
  • eBay
  • Amazon
  • Paypal
Cloud
  • Google App Engine (GAE)
  • Amazon

Portfolio

Contact

I'm a freelance developer based in Xixón, north of Spain. I have a degree in IT System Engineering at the University of Oviedo.

If you want to contact me you can send an email to: admin@rfvallina.com

oDesk Certified eBay Expert

admin@rfvallina.com

Personal Time Shopkeeper

Centralized inventory mapping system

US, 2013

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Centralized inventory mapping system that keeps synchronization between eBay, Amazon and Fishbowl. Multilayered platform with a fully Ajax-oriented front-end that consists on REST calls to a backend built on Java using a custom connector for eBay and Amazon operations.

Technologies
  • REST
  • eBay/Amazon Web Services
  • jQuery / Ajax / JSON
  • Java

Demo

eBay Marketplace Analyzer

Search tool to find the most popular items on eBay

Kenya, 2012

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The Marketplace Analyzer Application's purpose is to find the most popular items on eBay. This information is to help sellers gain a deeper insight into what makes an item or listing become popular and attract many watchers. They may then create better listings and sell in demand items.

Technologies
  • Open eBay Apps program
  • eBay Web Services
  • jQuery / Ajax / JSON
  • PHP 5.3

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RORE.TV

RORE is a curated shopping and entertainment experience, on and offline. Original daily features, identify unique deals, host auctions, and work assiduously to rid the world of mass merchandise and monotony.

US, 2011

rore

Wordpress site where users can search for unique eBay items. eBay integration is done using HTTP GET calls to improve performance.

Technologies
  • Wordpress
  • eBay Web Services (HTTP GET calls)
  • Ajax
  • PHP 5.2

Bye Auction

Search tool to monitor BuyItNow items in realtime as they are being listed on eBay

Asturies, 2011

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Fully Ajaxed application that searches eBay BuyItNow items as they are being published in eBay. Multiple searches in parallel. The algorithm is highly optimized to make it the fastest eBay search engine in the world. Users can set search frequency, price range or page size. eBay integration is done using HTTP GET calls to improve performance.

Technologies
  • HTML5
  • eBay Web Services (HTTP GET calls)
  • jQuery / Ajax / JSON

Demo

eMessaging

Management of user authentication to eBay Trading API

US, 2011

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Fully Ajaxed application that connects to eBay Trading API using XML HTTP Post calls. It gets a valid token in order to manage user authentication to eBay

Technologies
  • PHP
  • eBay REST Web Services
  • jQuery
  • MySQL

Jacked Fibres

Paypal integration and buyer information storage

Australia, 2011

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Customize application to accept payments via Paypal, save buyers information in database and migrate old data to a new database.

Technologies
  • PHP
  • Paypal API
  • jQuery
  • MySQL

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eGrabber

eBay search engine

US, 2011

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Fully Ajaxed and thread-oriented application that manages searches against eBay. Searches can be scheduled to run every X seconds. An HTML5 notification is displayed with every new result. The user can discard results on the fly, so that they will not be displayed in the next results notification. Searches run in parallel using eBay REST Web Services with XML HTTP Post calls.

Technologies
  • HTML5
  • PHP
  • eBay REST Web Services
  • jQuery / Ajax / JSON
  • MySQL

eBay Messages

eBay Message system

US, 2010

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Fully Ajaxed application that manages ebay messages. Users can read and reply messages. Communication with eBay is made using eBay REST Web Services using XML HTTP Post calls. Application is deployed in Google App Engine.

Technologies
  • HTML5
  • Google App Engine
  • Java
  • eBay REST Web Services
  • jQuery / Ajax / JSON