Senior Full Stack Software Engineer - 172075

Piper Companies; Washington (District of Columbia); On-site; USD 160,000 - 175,000; Full time

Benefits offered by this job

PTO

Paid Holidays

Medical

Dental

Vision

401K

Sick leave

Job summary

Zachary Piper Solutions seeks a Senior Full Stack Software Engineer to support enterprise-scale federal law enforcement applications using PostgreSQL, Java, and React. This on-site role is based in Washington, DC.

The engineer will design, develop, test, and deploy mission-critical software for a high-visibility modernization initiative. Requirements include 8+ years in full stack development, strong Java/React/JS/TS, PostgreSQL, REST APIs, GitLab, CI/CD, and containerization, as well as an

Qualifications

• 8+ years of experience in full stack software engineering and enterprise application development.
• Strong experience with Java, React, JavaScript/TypeScript, PostgreSQL, SQL, REST APIs, GitLab, CI/CD pipelines, and containerization.
• Experience in Agile environments and cross-functional collaboration.
• Bachelor's degree in CS/SE/IT or equivalent experience.
• Active Top Secret Clearance.

Responsibilities

• Design, develop, implement, test, and maintain front-end and back-end components.
• Develop and integrate RESTful APIs and enhancements within enterprise applications.
• Participate in requirements analysis, sprint planning, development, testing, QA, and SDLC activities.
• Conduct code reviews and contribute to architecture discussions and best practices.
• Support CI/CD pipelines, deployments, version control, and system optimization.

Skills

8+ years exp

Agile

Full stack

REST APIs

CI/CD

Containerization

Cross-functional

Java

React

JavaScript/TypeScript

PostgreSQL

SQL

GitLab

Security clearance

Education

Bachelor's degree in CS/SE/IT or equivalent

Tools

Java

React

JavaScript/TypeScript

PostgreSQL

SQL

REST APIs

GitLab

CI/CD pipelines

Job description

Zachary Piper Solutions is seeking a Senior Full Stack Software Engineer to support a company focused on modernizing and developing enterprise-scale federal law enforcement applications using a PostgreSQL, Java, and React technology stack. This position is On-site in Washington, DC. The Senior Full Stack Software Engineer will design, develop, test, and deploy mission-critical software capabilities supporting a high-visibility application modernization initiative. This is an opportunity to directly impact the delivery of critical technology solutions that enhance operational effectiveness and mission success.

Responsibilities for the Senior Full Stack Software Engineer include:

• Design, develop, implement, test, and maintain front-end and back-end application components.
• Develop and integrate custom capabilities, RESTful APIs, and enhancements within existing enterprise applications.
• Participate in requirements analysis, sprint planning, development, testing, quality assurance, and other full SDLC activities.
• Conduct code reviews, contribute to architecture discussions, and implement development best practices.
• Support CI/CD pipelines, application deployments, version control processes, and ongoing system optimization efforts.

Required Qualifications for the Senior Full Stack Software Engineer include:

• 8+ years of experience in full stack software engineering and enterprise application development.
• Strong technical experience with Java, React, JavaScript/TypeScript, PostgreSQL, SQL, REST APIs, GitLab, CI/CD pipelines, and containerization technologies.
• Experience working within Agile environments, collaborating across cross-functional teams, and supporting large-scale software deployments.
• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field (or equivalent experience).
• Active Top Secret Clearance

Compensation for the Senior Full Stack Software Engineer include:

Salary Range: $160,000 - $175,000 depending on experience

Full Benefits Package: PTO, Paid Holidays, Medical, Dental, Vision, 401K, Sick leave as required by law

#LI-JM1 #LI-HYBRID

This job opens for applications on 8/14/2026. Applications for this job will be accepted for at least 30 days from the posting date.

Keywords:

Senior Full Stack Software Engineer, Full Stack Developer, Java Developer, React Developer, Software Engineer, Enterprise Application Development, PostgreSQL Developer, JavaScript Developer, TypeScript Developer, REST API Developer, Agile Software Engineer, CI/CD Engineer, GitLab Developer, Containerization, Backend Engineer, Frontend Engineer, SDLC, Application Modernization, Federal Technology, Enterprise Systems,