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About Aretum 
Aretum is a mission-driven organization committed to delivering innovative, technology-enabled solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy, technology, and transformation, helping agencies solve their most critical challenges. We believe in investing in our people and creating a culture where collaboration, inclusion, and professional growth are at the forefront.

Job Summary
Aretum is seeking a skilled and motivated Senior Backend Java Developer. As a Senior Backend Java Developer, you will develop and maintain scalable and secure solutions for our client's modernization program.

Due to the nature of our work as a federal consulting organization, employees may be expected to handle Controlled Unclassified Information (CUI) and must adhere to applicable safeguarding and compliance requirements. 

Responsibilities

• Design, develop, and maintain Java (Spring Boot) microservices and RESTful APIs on a cloud-native, serverless AWS architecture (ECS, RDS, S3, SNS/SQS, Lambda)
• Develop and optimize database solutions using PostgreSQL and implement search capabilities using Elasticsearch/OpenSearch
• Contribute to shared platform services including identity/access management, payment processing, event-based messaging, and integrations with external systems
• Write clean, well-tested code with comprehensive unit tests, participate in peer code reviews, and ensure all code passes SonarQube quality gates
• Ensure accessibility, security, and performance standards are baked into all delivered code, meeting WCAG 2.1 AA and federal security requirements
• Collaborate with DevOps teams to maintain and improve GitLab CI/CD pipelines and keep the pipelines green across all environments
• Express infrastructure as code using Terraform and support containerized deployments using Docker and AWS ECS
• Participate fully in SAFe Agile ceremonies including Sprint Planning, PI Planning, Sprint Reviews, Retrospectives, and Product Demos within cross-functional Scrum teams
• Collaborate with Solutions Architects, Cloud Architects, frontend developers, testers, UX designers, and federal stakeholders to ensure alignment with architectural patterns and program priorities
• Support production operations, triage and resolve issues, and maintain technical documentation including architecture documents, API specifications, and runbooks