Full Stack Developer – Senior

Guidehouse•Washington, DC

1d•$113,000 - $188,000

About The Position

Guidehouse is seeking a skilled Senior Full Stack Developer to support the Federal Discovery Program and its associated technology. The role supports modernization of legacy Oracle APEX applications and functionality into a modern architecture using PostgreSQL, Java, and contemporary web technologies. The developer will collaborate with architects, database administrators, cybersecurity personnel, testers, and business stakeholders to deliver complete application functionality on schedule.

Requirements

U.S. citizenship.
Active Top Secret clearance with SSBI at the time of proposal; TS/SCI eligibility as specified; ability to comply with FBI security requirements.
Proficiency in modern full-stack web development technologies, including HTML, CSS, and JavaScript.
Experience with front-end frameworks such as React and supporting libraries.
A minimum of three years of enterprise software development experience.
Experience with relational databases, including PostgreSQL and Oracle, and competency in writing optimized queries.
Proficiency with version control using Git, including experience with GitLab or GitHub.
Experience working with Agile methodologies, including iterative development, sprint planning, and ongoing refinement of functional requirements and underlying architectural frameworks.

Nice To Haves

Spring Boot and Hibernate/JPA experience.
PostgreSQL administration and performance tuning experience.
Liquibase or Flyway experience for database migration and version management.
Jenkins, GitLab CI/CD, or Azure DevSecOps experience.
Experience with SonarQube, Fortify, Aquasec, or other secure code scanning tools.
OAuth2, SAML, or OpenID Connect experience.
Federal government modernization experience.
Experience delivering production-ready releases, deployment packages, and technical or user documentation.
Experience with containerized deployments; Docker and Kubernetes preferred.
Familiarity with cloud environments such as AWS, Azure, or similar.
Experience with Oracle APEX and Oracle PL/SQL modernization.
Experience designing and implementing scalable, distributed microservices architectures.
Keycloak Identity and Access Management experience.

Responsibilities

Implement authentication, authorization, auditing, and application security controls.
Perform data migration, validation, reconciliation, and database schema conversion activities.
Develop unit, integration, system, and user acceptance test support.
Support CI/CD pipelines, automated deployments, containerized deployments, and DevSecOps practices.
Troubleshoot production issues and optimize application performance.
Produce technical documentation, design artifacts, user documentation, and deployment guides.
Collaborate with architects, database administrators, cybersecurity personnel, testers, and business stakeholders to deliver complete application functionality as scheduled.

Benefits

Medical, prescription, dental, and vision insurance.
Personal and family sick time and company-paid holidays.
Parental leave.
401(k) retirement plan.
Group term life and travel assistance.
Voluntary life and AD&D insurance.
Health Savings Account and Health Care and Dependent Care Flexible Spending Accounts.
Transit and parking commuter benefits.
Short-term and long-term disability.
Tuition reimbursement, personal development, certifications, and learning opportunities.
Employee referral program.
Corporate-sponsored events and community outreach.
Care.com annual membership.
Employee Assistance Program.
Supplemental benefits via Corestream, including critical care, hospital indemnity, accident insurance, legal assistance, and identity theft protection.
Position may be eligible for a discretionary variable incentive bonus.