Full-Stack Developer (Java ​/ PostgreSQL

Job Family:
Software Development & Support

Travel Required:

Up to 10%

Clearance Required:

Active Top Secret (TS)

Guidehouse is seeking a Full-Stack Developer (Java / PostgreSQL) to support a federal law enforcement technology modernization program. The successful candidate will develop, modernize, test, deploy, and sustain mission-critical enterprise applications operating within a highly secure environment. The developer will contribute across the full application stack, including database design, backend services, RESTful APIs, frontend user interfaces, automated testing, security implementation, and Dev Sec Ops  integration.

This role supports modernization initiatives leveraging PostgreSQL, Java, and contemporary web technologies while ensuring application reliability, performance, and security compliance.

• Design, develop, test, deploy, and maintain enterprise applications supporting mission operations.
• Design and develop Java-based backend services and RESTful APIs.
• Develop responsive front-end applications using React, Angular, Vue, or similar frameworks.
• Design and optimize PostgreSQL databases and application data models.
• Implement authentication, authorization, auditing, and secure application controls.
• Perform data migration, validation, and reconciliation activities.
• Develop and support automated testing capabilities throughout the software lifecycle.
• Support CI/CD pipelines and Dev Sec Ops  practices.
• Troubleshoot production issues and optimize application performance.
• Create technical documentation, design artifacts, and deployment guides.
• Collaborate with architects, cybersecurity personnel, testers, database administrators, and stakeholders to deliver complete technical solutions.

• U.S. Citizenship.
• Active TS-SSBI or TS/SCI clearance.
• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related technical field. Equivalent experience may be considered.
• Minimum FOUR (4) years of experience working across the full application stack, including:
• Database design
• Backend development
• API development
• Front-end development
• Security implementation
• Automated testing
• Dev Sec Ops  integration
• Experience with PostgreSQL, Java, and modern web technologies.
• Experience designing and developing Java-based backend services and RESTful APIs.
• Experience developing responsive front-end applications using React, Angular, Vue, or similar frameworks.
• Experience performing data migration, validation, and reconciliation activities.
• Experience troubleshooting production issues and improving application performance.

• Five or more years of enterprise software development experience.
• Experience modernizing legacy enterprise applications.
• Experience with Spring Boot, Hibernate, or JPA.
• Experience with PostgreSQL performance tuning.
• Experience with Docker and Kubernetes.
• Experience with AWS or Azure.
• Experience implementing CI/CD pipelines.
• Experience with secure code scanning and Dev Sec Ops  tooling.
• Experience developing, modernizing, and supporting enterprise software solutions within federal government environments.

The annual salary range for this position is $98,000.00-$. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.

Guidehouse offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace.

• Medical, Rx, Dental & Vision Insurance
• Personal and Family Sick Time & Company Paid Holidays
• Parental Leave
• 401(k) Retirement Plan
• Group Term Life and Travel Assistance
• Voluntary Life and AD&D Insurance
• Health Savings Account, Health Care & Dependent Care Flexible Spending Accounts
• Transit and Parking Commuter Benefits
• Short-Term & Long-Term Disability
• Tuition Reimbursement, Personal Development, Certifications & Learning Opportunities
• Employee Referral Program
• Corporate Sponsored Events & Community Outreach
• annual membership
• Employee Assistance…