Luis H.
Back-end and Systems Engineer

Skills

C++

Luis is available for hire

All Howdy Candidates are vetted for skills and english proficiency.

Bio

With over two decades of professional experience, a robust proficiency in C and C++ languages within the telecommunications and IT service delivery sectors has been established. Recent efforts have focused on designing and implementing solutions for prominent enterprises in various industries, demonstrating a substantial and versatile skill set in software development and telecommunications engineering.

C/C++ Developer
7/1/2020 - Present

Developed and maintained billing system applications utilizing C and C++. Demonstrated extensive proficiency in creating optimized algorithms for large-scale data processing. Implemented multiple enhancements to improve the efficiency and performance of the billing systems, integrating various modules seamlessly. Showcased expertise in debugging and resolving complex software issues. Utilized tools such as GDB for debugging, Valgrind for memory leak detection, and Jenkins for continuous integration. Employed SQL and NoSQL databases, including MySQL and MongoDB, for effective data storage and retrieval.

Developed robust billing APIs to interface with third-party systems, ensuring secure and reliable data transactions. Designed and executed unit tests using frameworks such as Google Test, significantly reducing the incidence of bugs and errors post-deployment. Continuous collaboration with the QA team to streamline and automate testing processes. Showed proficiency in version control systems, including Git and Subversion, for maintaining code integrity and facilitating team collaboration. Demonstrated a sound understanding of system architecture, operating systems, and network programming, contributing to the overall stability and scalability of the billing applications.
Application Developer
1/1/2017 - 6/1/2020

Developed a tool for test automation which included data mass generation, file movement for processing, automatic system startup for testing, results validation, and evidence file generation, recognized as an innovative solution. Spearheaded software development for binary file editing using C Language. Undertook the elaboration and maintenance of projects on the Ericsson MM (Multi Mediation) platform. Led development projects for mediation services within a global business service line. Created automation routines utilizing Bash scripting and Python.
Systems Architect
3/1/2014 - 12/1/2016

Designed and implemented the Vehicle Tracking Data Collection Project, utilizing C++ and working with both UDP and TCP protocols on Ubuntu. Maintained and evolved a workstation usage monitoring system, leveraging C++ on a Windows 7 platform.
Systems Developer
1/1/2011 - 3/1/2014

Defined the Systems Architecture of the Contract Management Office (GATER) including the purchase requisition system, centralized contract base system, system for controlling the payment flow process, and system for management of counter-claims. Designed the framework to pave the architecture of tools in the Contract Management area.
Special Projects
1/1/2009 - 2/1/2011

Developed proficiency in conducting surveys and data analysis within the Brazil Telecom (BRT) Acquisition Project. Participated actively in business simulations and war rooms, contributing to the development of key performance indicators. Served as an analyst in a comprehensive transformation project, providing valuable support in problem-solving and operational improvement initiatives. Demonstrated skills in project management and strategic planning, utilizing various analytical tools and business frameworks to drive successful project outcomes.
Consultant
12/1/2006 - 8/1/2009

Developed proficiency in designing systems and frameworks while managing the development of new products. Built a monitoring solution in C++ for tracking workstation usage, complemented by report generation features developed in C# as a desktop application.
Systems Analyst
5/1/2006 - 9/1/2006

Demonstrated expertise in the maintenance and development of solutions on the BMP platform, specifically utilizing the Ericsson Mediation System. Acquired advanced technical skills in developing and fine-tuning mediation systems to support customer requirements. Engaged in system enhancement projects, improving overall performance and reliability.
Systems Analyst
12/1/2001 - 5/1/2006

Developed solutions in the Mediation area using the Ericsson BMP platform, enhancing the capability for efficient data mediation. Gained proficiency in C, C++, and Unix Shell Script for robust and high-performance solution development. Contributed to the ASAP provisioning platform through extensive use of C language, ensuring seamless delivery and provisioning of services.
Systems Analyst
10/1/2000 - 12/1/2001

Maintained Mediation Software (TCO1X) using C language and MOTIF Graphic Interface on HP-UX (Unix). Developed CDR formatter software, utilizing both C and C++. Created software to extract information from Control-M for process execution analysis and monitoring, employing C and Pro C/C++.
Systems Analyst
1/1/1999 - 12/1/2000

Developed proficiency in constructing remote control software utilizing C++ language, aimed at deployment for telecom client systems. Engaged in reverse engineering of the Prepaid CRM Protocol to enhance system understanding and functionalities. Demonstrated expertise in creating software using C for emulation of CRM software, specifically focusing on automating credits within a prepaid platform framework.