Full-Stack Developer (Java / PostgreSQL)
Confirmed on the employer's own hiring board on Oct 23, 2026. First seen by Alion on Aug 11, 2026. Guidehouse scores B on the Alion truth index.
Job Family:
Software Development & SupportTravel Required:
Up to 10%Clearance Required:
Active Top Secret (TS)What You Will Do
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 DevSecOps integration. This role supports modernization initiatives leveraging PostgreSQL, Java, and contemporary web technologies while ensuring application reliability, performance, and security compliance.
Responsibilities
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 DevSecOps 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.
Required Qualifications
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
DevSecOps 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.
Preferred Qualifications
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 DevSecOps tooling.
Experience developing, modernizing, and supporting enterprise software solutions within federal government environments.
What We Offer:
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.
Benefits include:
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
Care.com annual membership
Employee Assistance Program
Supplemental Benefits via Corestream (Critical Care, Hospital Indemnity, Accident Insurance, Legal Assistance and ID theft protection, etc.)
Position may be eligible for a discretionary variable incentive bonus
About Guidehouse
Guidehouse is an Equal Opportunity Employer-Protected Veterans, Individuals with Disabilities or any other basis protected by law, ordinance, or regulation.
Guidehouse will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of applicable law or ordinance including the Fair Chance Ordinance of Los Angeles and San Francisco.
If you have visited our website for information about employment opportunities, or to apply for a position, and you require an accommodation, please contact Guidehouse Recruiting at 1-571-633-1711 or via email at [email protected]. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation.
All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @guidehouse.com or [email protected]. Correspondence received by an applicant from any other domain should be considered unauthorized and will not be honored by Guidehouse. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. Never provide your banking information to a third party purporting to need that information to proceed in the hiring process.
If any person or organization demands money related to a job opportunity with Guidehouse, please report the matter to Guidehouse’s Ethics Hotline. If you want to check the validity of correspondence you have received, please contact [email protected]. Guidehouse is not responsible for losses incurred (monetary or otherwise) from an applicant’s dealings with unauthorized third parties.
Guidehouse does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Guidehouse and Guidehouse will not be obligated to pay a placement fee.