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Java Backend Developer with Shopify experience

Job description

We are looking for a Java Engineer with strong backend development experience and a passion for building scalable Shopify integrations.

You will help design and deliver backend systems that power next-generation e-commerce experiences - connecting Shopify with enterprise platforms through well-architected APIs and event-driven designs.

You will focus on architecture, API design, mentoring, and delivery - blending technical excellence with practical execution. This is a great opportunity for engineers who love crafting elegant systems, care about code quality, and enjoy solving real-world integration challenges.

Key Responsibilities

Design and implement Java-based backend services (Micronaut preferred) for Shopify integration and related e-commerce workflows.
Architect and document APIs using OpenAPI / AsyncAPI specifications, ensuring clarity, versioning, and scalability.
Implement Shopify integration patterns including webhooks, event-driven communication, and synchronization of products, orders, and fulfillment.
Build RESTful APIs and Kafka-based event pipelines, supporting reliable, decoupled services.
Apply domain-driven design (DDD) and event-driven architecture (EDA) to ensure maintainable and extensible codebases.
Create and maintain reusable backend components (e.g., Catalogue Validator, Pricing Service, Notification Engine).
Mentor junior developers in Java design principles, code reviews, and testing best practices.
Contribute to CI/CD pipelines, improving automation, observability, and release reliability.
Champion code quality, ensuring standards for linting, formatting, and secure coding are consistently
Collaborate with cross-functional teams (frontend, QA, DevOps, and product) to deliver features end-to-end.

Requirements

Mandatory

Java (8+) with frameworks like Micronaut (preferred) or Spring Boot.
Strong knowledge of Gradle, REST, and Kafka scaffolding.
Hands-on experience with OpenAPI / AsyncAPI documentation and design-first development.
Expertise in Shopify APIs (Admin API, Storefront API, Webhooks).
Solid understanding of authentication, rate limiting, and API orchestration patterns.
Experience in Testing and Quality: proficient with JUnit, Mockito, and Contract testing tools.
Architecture and Patterns: Domain-driven design, event-driven architecture, Reusable components (e.g., Catalogue Validator);

Nice-to-Have Skills

Experience with Shopify Plus, custom app development, or Shopify Functions.
Familiarity with Docker/Kubernetes and AWS cloud deployments, applied to monitoring and alerting tools like Prometheus, Grafana, or New Relic.
Prior involvement in mentoring teams, contributing to architecture discussions, and driving technical delivery.

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