Ikenna N. Okpala

M&S Venture Labs is an innovation unit within M&S Corp. Venture Labs are responsible for initiating new products, and experiment with new business models. - Actively contributed using functional, unit, and integration tests for application quality assurance. - Developed the express delivery slot feature (backend implementation). - Refactored elastic Multibuy product search - Implemented feature to allow customers apply voucher to multiple pending orders - Implemented produce range in individual stores. - Fix large CSV imports by refactoring it to use AWS-S3 - Implemented the product substitution in the picking application - RESTful interface for product (i.e. discount and multibuy) offers - Implementation to support import of large legacy XML offers file. Line item import query optimisation and AWS-S3 Export feature

TuskerDirect provides car leasing products and services, the website was initially written in Perl. And currently we are working to migrate legacy systems to Ruby based. - Actively contributing using BDD, to implement: - Development of pricing and data back office application (i.e called Mammomax). - Development of REST JSON API for third party (i.e kee data)car data (initially in CSV) (i.e called Deadpool). - Developed an in-house RabbitMQ Producer/Consumer gem (i.e black panther), using protobuf (i.e Protocol buffers) for serializing structured data.

Government Digital Service (GDS) is leading the digital transformation of government, by providing user centered web services that makes communication between citizen and state better. • Actively contributing using BDD, to implement policy changes, new features and bug fixes to the Smart answers and CPM Ruby on Rails based repositories. • Responsible for maintaining 39 Government policies and calculators used by millions of users in the UK and worldwide. • Development of REST based JSON endpoints and work flow reports on publishing platform. • Work closely with content designer and subject matter/policy experts • Helping to transition other none ruby developers. • Contribute as at when due to other libraries as they relate to the task at hand. • Carried out several A/B Testing on various apps across GOVUK. • Responsible for product software builds, software release notes, and product updates. • Documentation of product including functional and technical specifications.