CLIN 1 Software Engineer (Senior)

Job Title: Senior Software Engineer

Location: Onsite Washington, D.C.

Clearance: Top Secret SCI w/ Poly

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.
• Ability to obtain and maintain a [Public Trust / Secret / 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 preferred.

Qualifications

• 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
• U.S. Citizenship is required
• Ability to obtain and maintain a [Public Trust / Secret / 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

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