Java Developer

Role Description

CSCI is seeking a Java Developer to join our high-impact team modernizing a critical Department of War (DoW) business system. This multi-year initiative is focused on consolidating and upgrading legacy applications into a cloud-native, secure, and efficient platform that supports millions of military retirees and beneficiaries. As a key contributor, you will help transform aging systems into a modern, resilient architecture using cutting-edge development practices.

• Lead and contribute to the migration of legacy COBOL applications to Java-based microservices
• Translate business and technical requirements into scalable, maintainable, and secure software solutions
• Develop backend solutions using Java (Spring, Hibernate) and frontend with React, Angular, or similar
• Identify optimization opportunities for legacy application returning to Azure-based environments
• Design, develop, test, and deploy full stack solutions in Azure Cloud
• Collaborate with cross-functional teams to ensure seamless integration and performance
• Build secure, scalable RESTful APIs for cloud integration
• Ensure compliance with DoD cybersecurity and software development standards
• Document system architecture, codebase, and migration processes
• Participate in Agile ceremonies and contribute to sprint planning and retrospectives

Qualifications

• Must have a DoD Secret clearance
• Bachelor’s degree in computer science, Engineering, or related field
• 5+ years of experience in full stack development (e.g. Java, Python, HTML, CSS, Java Script, Maven RabbitMQ etc.) and related frameworks
• Strong proficiency in Java (Spring Boot, REST APIs) and associated message services
• Strong understanding of software design patterns, architecture principles, and SDLC methodologies
• Strong skills in writing complex SQL queries for data manipulation and reporting with experience in Oracle and SQL Server database
• Hands-on experience with Azure services (App Services, Functions, Key Vault, etc.)
• Familiarity with front-end technologies (Angular, React, or similar)
• Experience with relational databases (Oracle, SQL Server, PostgreSQL)
• Creativity and adaptability in problem-solving
• Ability to work with clients to understand their needs
• Strong organizational and time-management skills
• Excellent written and verbal communication skills
• Professional presence

Requirements

• Experience in government or defense-related software projects
• Experience with Defense Business Systems
• Familiarity with Strangler pattern
• Familiarity with DoD STIGs and RMF compliance
• Knowledge of DevSecOps practices and tools (Azure DevOps, Git, SonarQube)
• Experience with containerization (Docker, Kubernetes)
• Knowledge of security standards and performance optimization techniques
• Azure certification (Azure Developer Associate, Azure Solutions Architect, etc.)
• Knowledge of Event-Driven architecture and messaging systems (e.g., Azure Service Bus, Kafka)
• Exposure to automated testing frameworks and performance tuning
• Knowledge on Implementation of CI/CD pipelines using Azure DevOps / Set up and manage Azure Pipelines for automated deployment
• Experience with COBOL and understanding of legacy mainframe systems
• Knowledge of caching mechanisms - Redis, KeyDB
• Ability to work in a team environment, as well as independently
• Strong customer and vendor relationship skills
• Demonstrated ability to comply with data standards and policies
• Motivation to learn new technologies and methodologies that demonstrate value
• Past experience working with a federal agency
• Department of War experience is a plus!

Benefits

• Competitive salaries
• Generous Paid Time Off (PTO) package
• Paid holidays aligned to the Federal calendar
• Full health benefits including medical, dental, vision, and life insurance
• 401(k) retirement plan
• Team building events
• Professional development support