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Edgar Khachatryan

@edgarkhachatryan2

Senior Software Engineer at Grid Dynamics who modernized Ingenico RX7000 payment terminals and built Home Depot receipt services.

Armenia

Message

At Grid Dynamics, I led the migration of legacy Ingenico Lane7000 PinPad devices to Ingenico RX7000 terminals and updated POS Register backend services to support complex refunds for The Home Depot.

For The Home Depot, I also developed backend microservices to store receipts and expose them through REST APIs, and built asynchronous event-streaming pipelines with Apache Kafka.

At EPAM Systems, I built backend features for FedEx and engineered a payment acquiring service for Verifone, including Visa and Mastercard transaction handling. I’m an AWS Certified Developer – Associate with experience across Java, Spring, Kafka, and cloud-based applications.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Grid Dynamics

Aug 2024 - Present (2 years 3 months)

Led migration of legacy Ingenico PinPad devices to modern terminals and engineered POS backend services for complex refunds logic. Developed and maintained backend microservices for receipt storage and built high-throughput event streaming pipelines using Apache Kafka.

Java 17 Java 21+Spring Boot Kafka Maven JUnit5 Grafana BigQuery Axium Store Jira Ingenico OkHttp

Software Engineer

EPAM Systems

Mar 2021 - Aug 2024 (3 years 5 months)

Built an internal enterprise application for package instructors and implemented core backend features. Conducted code reviews and authored unit and integration tests maintaining high code coverage. Engineered payment acquiring services and developed merchant configuration features.