Senior Software Engineer with Security Clearance

Job Title: Senior Software Engineer
Location: Onsite Washington, D.C. Clearance: Top Secret Employment Type: Full-Time / W2 / Contract
Position Summary:
Experis is seeking a highly experienced Senior Software Engineer to support a federal agency's mission-critical applications. The ideal candidate will have at least 8 years of hands-on software development experience, with advanced proficiency in Java/J2EE, Oracle, PostgreSQL, Spring Framework, JavaScript/React, and AWS. This role requires strong database development expertise, UI development experience, and the ability to deliver enterprise-grade solutions in an Agile federal environment.

Key Responsibilities:

• Develop, deploy, and maintain secure, scalable applications using Java 8 (J2EE), Spring Boot, React, and RESTful APIs.

• Lead the design and development of enterprise applications using Oracle and PostgreSQL, with advanced SQL and PL/SQL scripting.

• Implement web-based user interfaces with JavaScript, AJAX, and React while ensuring Section 508 compliance.

• Support full application lifecycle, including requirements gathering, analysis, design, development, testing, and production support.

• Collaborate within Agile Scrum and Kanban teams using tools like Jira and Confluence.

• Participate in CI/CD workflows, DevSecOps pipelines, and deployment automation using tools such as Git, Maven, and Jenkins.

• Operate and troubleshoot applications hosted in AWS Cloud, leveraging services like EC2, RDS, S3, EBS, and AMIs.

• Support and maintain enterprise applications in a 24/7 mission-critical environment.

Required Qualifications:

• U.S. Citizenship is required.

• Top Secret security clearance.

• Bachelor's degree in Computer Science, Engineering, or related field.

• 8+ years of hands-on development experience in:

• Java 8 (J2EE), Spring Framework 5+, Spring Boot 2

• JavaScript/AJAX, React, HTML, CSS

• Hibernate 5+, RESTful Web Services

• SQL/RDBMS, specifically Oracle and PostgreSQL

• Apache Tomcat, Red Hat JBoss, Linux (RHEL/CentOS)

• Eclipse IDE, Maven, Git

• 8+ years in database development and enterprise troubleshooting with a focus on performance tuning and scalability.

• 5+ years of experience with:

• Amazon Web Services (AWS) - including EC2, RDS, S3, EBS, AMIs, IaaS

• Agile frameworks - Scrum and Kanban

• Atlassian tools - Jira and Confluence

• CI/CD tools and automation frameworks

Preferred Qualifications:

• Experience with Section 508 accessibility standards.

• Knowledge of FedRAMP, FISMA, and other federal compliance standards.

• Familiarity with containerized environments and orchestration tools (e.g., Docker, Kubernetes).

• Oracle, Java, or AWS certifications a plus.