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Professional Summary

Highly skilled Billing System Development Expert with a decade of experience at Orange Moldova. Proven expertise in the full development lifecycle, from designing and implementing new features to system integration and optimization using Oracle PL/SQL, Python, and C++. A natural problem-solver and team leader with experience in managing projects and mentoring engineers. Seeking a challenging new role in development and leadership to drive innovation and tackle new opportunities.

Core Competencies & Skills

• Programming & Scripting: Python, Oracle PL/SQL, C/C++, Tcl/Tk, Lua, VBA
• Databases: Oracle SQL, Database Design & Optimization
• Systems & Integration: Billing Systems, API Integration, System Support, HLR Provisioning
• Professional Skills: Leadership, Project Management, Problem Solving, Critical Thinking, Communication

Professional Experience

Billing System Development Expert
Orange Moldova, Chişinău | September 2021 - Present (Remote)

• Led the development, testing, and deployment of new features for the core billing system.
• Headed the integration of the billing system with key external and internal platforms.
• Re-architected and re-developed critical database modules for enhanced functionality and security.
• Defined optimization strategies and managed the migration to a new billing system version.
• Managed team activities and mentored junior engineers.

Billing System Development Engineer
Orange Moldova, Chișinău | August 2018 - August 2021 (Hybrid)

• Developed and implemented new functionalities and system improvements for the Postpaid Billing System.
• Ensured robust integration with new and existing company platforms.
• Authored comprehensive test cases and plans for new projects to guarantee quality and performance.
• Provided critical support for HLR Provisioning and all payment/cash collection procedures, resolving complex issues efficiently.
• Participated in night duty rotations, performing system monitoring and incident resolution.

Billing System Development & Support Engineer
Orange Moldova, Chişinău | September 2016 - July 2018 (On-site)

• Provided development and support for new Postpaid commercial offers and billing applications.
• Contributed to the full lifecycle of new features, from development and testing to final deployment.
• Played a key role in supporting HLR Provisioning actions and solving related issues.

Billing System Support Engineer
Orange Moldova, Chişinău | February 2015 - August 2016 (On-site)

• Provided primary support for Postpaid and Prepaid commercial offers, ensuring minimal customer complaints and rapid issue resolution.
• Created detailed test cases and plans for new product launches.
• Acted as a key point of contact for minimizing and resolving user and customer complaints related to the billing system.

Certifications

• General English - Education First (February 2025)
• Microsoft 365 Fundamentals Specialization - Coursera (Microsoft) (July 2024)
• Google IT Automation with Python Specialization - Coursera (Google) (June 2024)
• Coding for Everyone: C and C++ Specialization - Coursera (University of California) (June 2024)
• C Programming for Everybody Specialization - Coursera (University of Michigan) (June 2024)
• Programming C++ - Coursera (by Codlo) (June 2024)
• Google IT Support Professional Certificate - Coursera (by Google) (June 2024)
• Oracle SQL Database Specialization - Coursera (Learn Quest) (May 2024)
• Python 3 Programming Specialization - Coursera (University of Michigan) (May 2024)

Education

Technical University of Moldova
Bachelor's Degree in Automatic Control and Informatics | September 2011 - June 2015

Languages

• Romanian: Native
• Russian: C1 (Professional Proficiency)
• English: B2 (Upper-Intermediate)