Senior Backend Java Developer

Aretum•McLean, VA

11h•Remote

About The Position

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.

Requirements

Minimum 5 years of hands-on Java (Spring Boot) backend development experience building RESTful APIs and microservices
BA/BS degree; in the absence of a degree, an additional 4 years of relevant experience (9+ years total) may be considered as a substitute
Hands-on experience with AWS cloud services (ECS, RDS, S3, SNS/SQS, Lambda) and containerized deployments using Docker
Strong working knowledge of PostgreSQL and Elasticsearch/OpenSearch
Experience with GitLab for source control and CI/CD pipelines
Experience working in Agile/Scrum environments

Nice To Haves

Experience with Python as a secondary backend development language
Experience with Terraform or other Infrastructure-as-Code tools
SAFe Agile methodology experience
Experience with SonarQube or similar code quality tools
Familiarity with accessibility standards (WCAG 2.1 AA) and federal security best practices
Prior experience on federal government or large-scale enterprise modernization projects
AWS certifications (e.g., Solutions Architect Associate, Developer Associate)

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