Earned increased levels of accountability throughout tenure—rising to Member Technical Staff (MTS) Level IV—and focusing in later years on infrastructure projects, technology upgrades, and migrating applications to Oracle and AWS cloud platforms. Evaluate COTS packages for deployment within the wholesale billing system, defining requirements, and working with user groups to enhance functionality in alignment with organizational needs. Provide production support after hours, serving as a ‘go-to’ resource for on-demand troubleshooting.➜ Earned repeated promotions and heightened levels of responsibility, moving from web development to the wholesale billing team based on technical expertise and exposure to mediation and billing systems.➜ Led group-based projects, defining the roles of peers, overseeing workflow and milestones, and serving as a senior member of the team able to steer efforts while ensuring the achievement of desired outcomes.➜ Supported the system critical to the processing of $1.5B in transactions annually, partnering with 12-15 onsite and offshore team members in the high-level design, architecture, and troubleshooting of the billing system. Consolidated telco accounts under one biller, increasing call volumes by 30% with zero impact to SLAs.➜ Spearheaded migration plan to move wholesale applications to Oracle public cloud infrastructure—impacting SunOS, AIX, MS SQL, Oracle, MS Windows, and RHEL platforms—and created design to replatform legacy C/C++ applications from AIX Power and Oracle Sparc architecture to x86-based public cloud.➜ Cut licensing requirements and maintenance expenses—by 50% to $1M—on leading an infrastructure project to upgrade aging Solaris platform to RHEL with application code migrating to new Sparc T5 platform.

Authored clean and efficient code to enhance existing applications, remediating production issues encountered within the mediation system, and serving as an after-hours on-call resource to troubleshoot issues. Began supporting the billing system for managed dialup and VPN services, extending daily functions to dual systems. Identified opportunities to enhance products, developing user requirements, and working with business groups and technical teams to deliver on needs.➜ Contributed to a multi-year project to design, develop, and implement a new network mediation system—to replace original micro-host mediation system—allowing for processing by midrange mediation platform.➜ Developed process to manage and extract data from emails originating from 150+ server instances, extracting from common email inbox and processing based on configuration file-driven definition to load into database.➜ Led database design and implementation for operational data store for Managed Dial, VPN, and Transaction Services products, involving DDL; partition management; and load, summarization, and extract processes.➜ Designed and developed processes for managing network traffic data from operational data store in billing system—for WorldCom managed dial services—facilitating import, enhancement, and partition management.➜ Delivered analysis of legacy network accounting records—and subsequent recommendations—to allow next-generation IP network accounting tuple format to support legacy (x25) and IP networks.➜ Additional experience as a Systems Programmer, Analyst, and Developer during foundational years with CompuServe.