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Backend Java Developer

Staffxpert LLC

Job Location:

Moline, IL - USA

Monthly Salary: Not provided by the employer

Posted: 23 June 2026 (30+ days ago)

Application Deadline: 20 September 2026

Vacancies: 1 Vacancy

Job Summary

Backend Java Developer AWS Serverless

Location : Moline IL Onsite

Job Summary

STAFFXPERT is seeking a Backend Java Developer with strong Core Java fundamentals and hands on experience building cloud native serverless applications on AWS. The ideal candidate must be strong in REST API design and communication protocols and have practical experience with AWS Lambda messaging streaming and containerized services.

Key Responsibilities

Design develop and maintain backend services using Core Java
Build and expose RESTful APIs with strong understanding of HTTP methods status codes and request/response models
Develop serverless applications using AWS Lambda
Implement event driven solutions using AWS SQS and Kinesis Streams
Design and integrate data storage using Amazon DynamoDB
Work with Amazon ECS for containerized backend services
Provision and manage infrastructure using AWS CloudFormation
Ensure secure scalable and high performance backend services
Perform code reviews unit testing and troubleshooting

Required Skills & Qualifications

Strong hands on experience with Core Java
Strong expertise in REST API design and protocols
Solid hands on experience with AWS services including:
- AWS Lambda
- Amazon SQS
- Amazon DynamoDB
- Amazon ECS
- Kinesis Streams
Experience using AWS CloudFormation for infrastructure as code
Experience building event driven and microservices based architectures
Working knowledge of Spring Boot / Spring Framework
Experience with CI/CD pipelines
Familiarity with logging and monitoring tools (e.g. CloudWatch App Insights)