Backend Developer

Job Description

A customer is seeking a Backend Developer to help with the development of a new application for their enterprise customers.

Analyze existing Java backend services to understand business logic and data flows

Implement APIs using Java 17 and Spring Boot in a shared backend platform

Design and build clean GraphQL APIs aligned with frontend requirements

Work with PostgreSQL and Apache Cassandra data stores

Support understanding of data migration and legacy system coexistence

Implement event-driven workflows using Kafka

Use Redis for caching and performance optimization

Write unit and integration tests to ensure production-ready code

Can pay $55-60 / h

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Skills and Requirements

8+ years of backend development experience

Strong understanding of microservices or modular backend architecture

Strong expertise in Java 17, Spring Boot, Spring Framework

Hands-on experience designing GraphQL APIs

RESTful API development experience

Strong experience with PostgreSQL

Working knowledge of Apache Cassandra

Experience with Kafka-based event-driven systems

Experience using Redis - Docker-based application development

Maven builds and dependency management

AWS experience (especially S3)

Strong unit and integration testing experience