Senior Full Stack Java Developer (Spring Boot / ReactJS)

Job Title

Senior Full Stack Java Developer (Spring Boot / ReactJS)

About The C.A.S.E. Engineering Group

At The C.A.S.E. Engineering Group, we specialize in cybersecurity advisory services, modernizing IT architectures, developing IT strategic plans, and engineering innovative systems and software. C.A.S.E. stands for Cybersecurity, Architecture, Strategy, and Engineering. We take a balanced, tailored approach to solving unique organizational challenges while leveraging industry best practices for long-term success.

This position supports a mission-critical federal application portfolio spanning Java/Spring Boot microservices and a Java/ReactJS business application executing statutory and functional changes.

Position Overview

• Job Type: Full-Time
• Location: Remote (U.S.) with occasional on-site meetings in the Washington, DC area
• Target Salary Range: $130,000 – $155,000 / year (Note: Final offer is subject to candidate experience and expectations)
• Position Contingency: Contingent upon contract award (Anticipated award: September 2026; Estimated start date: November 17, 2026)

As a Senior Full Stack Java Developer, you will develop, refactor, document, and sustain secure Java, Spring Boot, ReactJS, and API-based applications in an outcome-based delivery model.

Key Responsibilities

• Full Stack Development: Develop and sustain Java/Spring Boot backend services/APIs and ReactJS front-end web components.
• Functional & Legislative Changes: Implement legislative, functional, and security updates with clear traceability from requirements to code.
• Validation & Testing: Perform unit checks, smoke validation, and produce test evidence packages for Government acceptance.
• Vulnerability Remediation: Execute approved security fixes, remediate code vulnerabilities, and provide verification evidence.
• Release Engineering: Produce as-built documentation, deployment instructions, and update operational runbooks.

Qualifications & Requirements

• Experience:
• At least 6 years of professional software development experience.
• At least 4 years with Java / Spring Boot in enterprise or mission-critical environments.
• At least 2 years with ReactJS (or comparable modern JS frameworks).
• Technical Expertise:
• REST APIs, SQL/relational databases, Git workflows, and CI/CD pipelines.
• OpenShift or Kubernetes container platform familiarity.
• Secure coding principles and OWASP vulnerability remediation.
• Clearance & Security:
• Must possess U.S. work authorization.
• Must be able to obtain and maintain a federal Moderate Risk Public Trust (MBI level) background investigation.

Our Hiring Process

• Submit Application: Apply directly on Indeed with your updated resume.
• Salary & Contingency Confirmation: State your expected salary range and confirm your availability for a contingent start in November 2026.
• Alex AI Assessment: Complete an automated AI assessment interview through Alex AI. (Candidates achieving a score of 80/100 or higher will advance to recruiter review).
• Recruiter Screening Call: Connect with our recruiting team to discuss your hands-on technical experience, federal background/suitability, and contract alignment.
• Final Technical Review & Selection: Final candidate slate submission and formal placement consideration.

Pay: $130,000.00 - $155,000.00 per year

Benefits

• Dental insurance
• Health insurance
• Paid time off
• Vision insurance

Application Question(s)

• What are your salary expectations?

Location

• Washington, DC (Required)

Work Location: Remote