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Mary Antonyan

@maryantonyan1

C++ software engineer with payment systems and database platform experience, developing production tools and thread-safe Modern C++ projects.

Armenia

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At Instigate Mobile Vanadzor CJSC, I developed production C/C++ tools for a cloud data warehouse migration platform, including utilities for SQL processing and database interaction. I also created testing automation and investigated SQL translation failures to help improve migration quality.

At Energize Global Services, I maintained and enhanced POS payment software, implementing transaction flows for card and QR payments, receipt generation, and printing. During my professional development, I built C and Modern C++ projects, including a thread-safe producer–consumer application, and published a GitHub portfolio.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer – Professional Development

Current

Independent

Apr 2025 - Present (1 year 6 months)

Pursued a structured professional development plan during a career break, strengthening expertise in C, Modern C++, and software engineering fundamentals. Built practical applications demonstrating multithreading and thread-safe programming.

C Modern C++STL Object Oriented Programming Templates Multithreading Concurrency Linux Git GitHub Make Debugging

C Developer (POS/ Payment Systems)

Energize Global Services

Aug 2021 - Mar 2023 (1 year 7 months)

Maintained and enhanced production-grade software for POS payment terminals, delivering new functionality and supporting secure electronic payment processing. Implemented end-to-end payment transaction flows, including user input handling, card reading, message construction, acquirer communication, and response processing.

C Payment Systems POS systems

Software Engineer

Instigate Mobile Vanadzor CJSC

Oct 2017 - Jul 2021 (3 years 9 months)

Developed production C/C++ command-line tools and infrastructure utilities for database interaction and SQL processing. Performed SQL compatibility analysis and designed automation frameworks for testing.

C C++Python PostgreSQL Teradata Flex BISON JMeter Jenkins Pytest Perl

Education

Degrees, certifications, and relevant coursework

TestDome

C++ Certification, C++

Grade: Top 10%

Earned the C++ Certification from TestDome, ranking in the top 10%.

National Polytechnic University of Armenia

Bachelor of Science, Informatics and Computer Science

2015 - 2019

Bachelor of Science in Informatics and Computer Science from the National Polytechnic University of Armenia, Vanadzor Branch, from 2015 to 2019.

Instigate Mobile Vanadzor CJSC

Software Engineering Training Program, Software Engineering

2017 - 2017

Completed a competitive 9-month Software Engineering Training Program covering software engineering fundamentals including C/C++, computer architecture, operating systems, networking, software development processes, Git, testing, web programming, and Android development.