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# Backend Software Engineer

- **Company:** Expert Technology Services
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Salary:** $161,000.0 - $236,500.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Amazon Web Services, Cloud Computing, Cloud Engineering, Software Quality, Electronic Data Interchange (EDI), Junit, Mockito, Spring-boot, Software Security, Reliability of Systems, Backend, Cloudformation, Event Driven Architecture, AngularJS, Information Technology, Playwright, Front End Software Development, Cucumber (Software), Jenkins
- **Published:** July 23, 2026
- **Apply:** https://www.careerjet.com/jobad/us9947768f46bb013f8ccedd1954fce7f9

## About the Role

AWS Certified Developer Associate or higher.

 - Experience with Angular for front-end development.
 - Knowledge of EDI systems and event-driven architectures.
 - Experience with AWS CDK and infrastructure as code.

## Description

Analyze, design, and develop mission-critical, cloud-native enterprise backend services for a leading passenger rail transportation client.

 - Lead technical analysis and architecture for complex, large-scale IT projects, collaborating with clients and stakeholders to define requirements.
 - Design, build, test, and implement robust, high-performance backend systems using Java 17, Spring Boot, and AWS services.
 - Develop event-driven backend services for Electronic Data Interchange (EDI) transactions.
 - Provide ongoing production support, troubleshooting, and problem resolution to ensure system reliability and performance.
 - Create and maintain comprehensive technical documentation for all projects and services.
 - Contribute to the continuous improvement of CI/CD pipelines using tools such as Jenkins, Code Pipeline, and CloudFormation.
 - Utilize automated testing frameworks (e.g., Junit, Mockito, Cucumber, Playwright) to ensure code quality and system integrity.
 - Apply knowledge of cloud-native development, AWS integrations, application security, and the Twelve-Factor Application Methodology.
 - Communicate effectively and work collaboratively with cross-functional teams.
 - Mentor and guide junior engineers in best practices for backend development and cloud architecture., As a Senior Full Stack Engineer, you will play a pivotal role in shaping the future of AI systems by leveraging your technical expertise to develop and maintain robust web applicat…
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