Eugeniu Grigor

Billing System Development & Support Expert

Orange Systems•  March 2017 - March 2023

- Developed new billing applications, mainly those which load info about customer activity and its subsequent billing. For the load applications it was used C++ (Visual Studio IDE) and the billing application were in Oracle environment. By applying new algorithms and logic, these applications became more fast (the speed was doubled) and they used less hard resources (optimization of code applying OOP principles and more careful work with pointers). As result, the invoicing processes became faster (the delay between customer activity and billing was reduced to around one minute instead of 3-5 before); - Evaluated multiple software solutions used in billing environment by assessing software features, functionality, and security, resulting in quality source code and performance made the billing process easier to understand and with possibility to future developing without without impact already existing logic.

Billing System Development & Support Engineer

Orange Systems,•  November 2015 - February 2017

- Maintained the billing applications and Database structures; - Increased C++ applications performance by up to 30%, using new programming techniques and algorithms; - Optimized the Oracle scripts used to detect anomalies, resulting in significant speed improvements (3 seconds to 20 minutes gain).

C++ Developer

Cedacri International•  December 2012 - October 2015

- Transferred the batch applications from JAVA to C++, increasing their speed from tens of minutes to a few minutes; - Created new load/upload applications using C++ which loaded information from textual (.txt, .dat, .xls., xlsx) to database, filtering and processing it, and vice versa; - Wrote and actualized the documentations for the applications which were in my management. - Developed JAVA modules in Spring Framework to facilitate interaction between Front-End and Back-End applications.

IT Consultant

National Social Insurance House of the R. Moldova•  April 2008 - November 2012

- Created service level agreements for IT operational functions, including help desk support; - Provided valuable input in team meetings and delivered updates in deadlines, designs and enhancements. - Recommended and installed upgrades to align technologies with agency growth.

Software Programmer

Indra Sisteme•  September 2006 - February 2008

- Developed client interface using Power Builder IDE; - Created Back-End programs using ANSI C; - Developed Oracle DB environment (procedures, functions, tables, triggers etc. etc.)