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Sr Backend Developer

TechDoQuest

brampton, on, Canada Full-time June 03, 2026

Found Description

We are seeking a proficient 6-to-12-year Java Backend Senior Developer in Java Spring Boot and Oracle ATG Web Commerce to join our engineering team. The role requires hands-on backend development expertise a strong understanding of scalable microservices architecture and in-depth knowledge of Oracle ATG for enterprise grade ecommerce platforms. Responsibilities include designing and developing backend services using Spring Boot and Java versions 8 to 21 and working within the Oracle ATG framework. The role involves creating maintainable REST and SOAP APIs extending and customizing ATG components like Repositories Droplets Form Handlers and Commerce Pipelines and following clean code practices SOLID principles and domain driven design. The developer will build data persistence layers using Spring Data JPA Hibernate and the ATG Nucleus framework manage concurrency transaction handling and performance tuning and integrate messaging queues using Kafka with enterprise security such as Kerbe...

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