Entrepreneur Resume San Jose, CA - Hire IT People

TECHNICAL SKILLS

PROFESSIONAL EXPERIENCE

Entrepreneur

Confidential, San Jose, CA

Responsibilities:

I was the architect for large scale distributed systems; Confidential Listings and Shipping & Logistics.
Lead architect for Global Shipping Platform, which is an international cross boarder Shipping & Logistics solution for Confidential buyers and sellers.
The system computes duties, taxes & shipping for international buyers.
I was the lead architect for this large distributed sub-system, involving 30+ cross-domain teams within Confidential and also 3 rd party systems like Pitney Bowes, PayPal, etc.
Architect for Large Merchant Services.
Designed the translator, mapper and reducer (map reduce) functionality to onboard large merchant inventory data on to Confidential .
Internal cloud based file uploader was setup for users to upload data.
I was part of the Confidential web services review committee to enforce standards & principles for service definitions, data types, and operations that are built using either SOAP, SOA or REST.
I was involved in scalability and performance projects of my architectural domains and was also instrumental in eliminating or reducing all the single point of failures in production
I was the architect for critical projects like; Confidential Local, Shipping rate calculator using search, Fast N Free shipping for buyers by mining historical transactional data using Hadoop, single and multiple shipping label printing platform for Confidential & PayPal by integrating with USPS, FedEx, etc.

Principal Engineer

Confidential, San Jose, CA

Responsibilities:

I was the lead developer in building the backend functionality for Confidential listing site in Java that is currently live.
Designed & implemented the DAG (Directed Acyclic Graph) structure to model the listing fields (input fields with complex dependency and constraints between them).
I was primarily responsible for overall design of the listing platform for Confidential, which includes data modelling, application modelling, client-server communication design, testing, code roll out, fixing bugs, interacting with cross development teams, PM's, PJM's, QE, OPS, etc.
Enhanced and developed listing related APIs for Confidential .
The technology used was XML over HTTP with XSD validations.
SOAP support were also available for the same.
I was the sole backend developer to build the Half.com selling platform for Confidential after the acquisition of Half.com. Migrated Half.com (C++) to Confidential platform (Java).

Staff Software Engineer

Confidential, San Jose, CA

Responsibilities:

I was responsible for code refactoring effort to simplify the listing code base and reduced Cyclomatic code complexity (used Sonar to measure) by 50%.
Reduced the database hits from application by 30% and improved the application performance.
Lead developer for integrating Skype with Confidential (after Confidential acquired Skype) & later the feature was removed after Confidential sold the property to Microsoft
Build APM (Automatic Payment Method) for delinquent Confidential sellers & integrated it as part of the listing process on Confidential .

Sr. Software Engineer

Confidential, San Jose, CA

Responsibilities:

Involved in the migration of Confidential site from C++ to enterprise Java platform.
Lead developer for building the listing site for NL and CN countries for Confidential with Internationalization (I18N) and Localization (L10N) support
Worked on performance and scalability of MyEBay & Selling Manager (traffic 100+ Million/day).
Enhanced Confidential developer public API's related to listings and also improved performance of metadata getter API's. Improved the performance by 70%.

Software Engineer

Confidential, Fremont, CA

Responsibilities:

Primary developer of CMP 2.0 (EJB 2.0 specification) support for Versant
Implemented the cascade delete feature, which does a closure on the root persistent object and all the referenced entities recursively
Designed the J2EE's Hot Deploy feature for the CMP container.
Implemented connection pooling for Versant using Java, which is used within J2EE app server

Software Engineer

Confidential, Irving, Texas