Built fully-interactive, full-stack applications using HTML, CSS, JavaScript, Python, Ruby on Rails, React and SQL, deployed on Heroku and Amazon Web Services. Please see my portfolio for more details. https://gbbenson68.github.io/Projects: • Gas Mileage Calculator - features a client built in JavaScript, HTML and CSS/Sass, with additional Bootstrap components and using Handlebars for detail entries. The API is a Ruby on Rails implementation on top of a PostgreSQL relational database and deployed on Heroku. https://gbbenson68.github.io/gas-mileage-calculator-client/ • Group project: Cagusabi Image Uploader - With a client built in JavaScript, HTML and CSS/Sass, this app makes extensive use of Bootstrap modals for messaging. The API was built in Express.js, with Mongoose.js on top of MongoDB. The API is deployed on Heroku, utilizing buckets on Amazon Web Services for storing images. https://gbbenson68.github.io/caGUsabi-client/ • Tic Tac Toe game - The client is built in JavaScript, HTML, CSS/Sass and Bootstrap. The API used was supplied by General Assembly. In the near future, the GA-provided API will be supplanted with a bespoke API using Express.js, Mongoose.js and MongoDB. https://gbbenson68.github.io/tic-tac-toe-new/ • Internome - Although this is my "capstone" project, it is still under heavy development. The client is built using React with Bootstrap, on top an API built in Express.js, with Mongoose.js used for modeling on top of MongoDB. It is deployed on Heroku. https://gbbenson68.github.io/internome-client/

Tier 2 Technical Support specialist, specializng credit card payments processing • Generated SQL queries (PL/pgSQL) utilized by Support in gathering information and generating automated support messages • Proactively monitored errant credit card transactions to identify issues earlier, saving customers approximately $30,000 in card transactions • Designed processes around payments processing to ensure traceability and audit-ability

Postpaid billing specialist and architect, developed Payments Distribution Handler (PDH) for Orga’s postpaid convergent billing platform • Created Payments Distribution Handler (PDH) in PL/SQL for Orga’s OPSC Gold Prepaid-Postpaid convergent billing platform • Architected and developed PL/SQL solutions for postpaid billing • Wrote PL/SQL coding standards for Oracle developers

Migration Specialist for mobile telephony system upgrade of Germany’s fourth-largest provider • Evaluated out-of-the-box ETL solutions, with emphasis on quick implementation, scalability and change data capture • Rewrote test strategy documentation

Migration Manager for upgrade of broadband cable and internet provider • Led international team (based in England, Germany, Poland and Vietnam), managing data migration resources for the implementation of a billing systems upgrade • Created interface specifications for migration of data from legacy systems to new systems • Constructed data migration tools in Perl and MySQL for transferal of data from legacy systems to new systems

Developer, analyst and subject matter expert for Germany’s Third-largest mobile telephony provider • Managed a billing system upgrade affecting 6 million subscribers, reducing implementation time by 50% and resulting in an 800% performance improvement • Optimized Sybase database objects to increase performance of critical jobs by more than 1000% • Implemented tooling in PL/SQL and Bourne shell for extracting, transforming and loading150 million billing records per month • Developed and implemented a custom-built invoice generation tool in C and C++ • Guided end-to-end feature implementation for retail customer base affecting up to 6 million subscribers

Developer, analyst and subject matter expert for mobile telephony • Partnered with resident Oracle expert to develop in-house PL/SQL solutions, reducing implementation costs by nearly 50% while decreasing implementation time by up to 80% • Designed database configuration for the rating of millions of call data records hundreds of thousands of subscribers • Implemented initial roaming configurations for dozens of roaming partners

Systems Engineer and Lead Support Engineer • Team Leader for Sydney and Munich support teams • Identified problems with data and generated scripts affecting 1.5 million subscribers • Optimized code (in C) to fix memory leak issues