Senior Java Developer — Remote (Portugal) with Shopify

Komodo Consulting; Portugal; Remote; EUR 60,000 - 90,000; Full time

Job summary

Komodo Consulting in Portugal is seeking a Senior Java Developer (Shopify) to work on a tech project. You will design, build, and maintain backend services and APIs using Java and Spring Boot, and manage Shopify integrations in production.

You will design GraphQL APIs, implement event-driven patterns with Kafka, and leverage AWS (DynamoDB, secrets management) with OpenTelemetry for observability. Fluent English is required and you must reside in Portugal.

Qualifications

• Senior Java development with production experience.
• Hands-on Shopify integration experience in production.
• Strong Spring Boot experience building scalable backends.
• Solid GraphQL API design and maintenance skills.
• AWS know-how including DynamoDB and secrets management.
• Experience with Kafka and event-driven architectures.
• OpenTelemetry observability, monitoring and tracing.
• Fluency in English.
• Must be located in Portugal.

Responsibilities

• Design, develop, and maintain scalable backend services and APIs.
• Build and troubleshoot Shopify integrations in production.
• Design and maintain GraphQL APIs to support systems.
• Develop event-driven architectures using Kafka.
• Leverage AWS services including DynamoDB and secrets management.
• Implement observability with OpenTelemetry and distributed tracing.

Skills

Senior Java Developer

Shopify integrations

Spring Boot

GraphQL

AWS

Kafka

OpenTelemetry

English fluency

Portugal resident

Job description

Komodo Consulting in Portugal is seeking a Senior Java Developer (Shopify) to work on a tech project. You will design, build, and maintain backend services and APIs using Java and Spring Boot, and manage Shopify integrations in production.

You will design GraphQL APIs, implement event-driven patterns with Kafka, and leverage AWS (DynamoDB, secrets management) with OpenTelemetry for observability. Fluent English is required and you must reside in Portugal.