Senior Full Stack Developer

Constellation Inc is a U.S. national security small business contractor headquartered in Reston, Virginia, providing mission-driven consulting solutions to federal government agencies since 2006.

Constellation Inc

Salary: $135K – $155K per year

United States only

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Pay: $135,000.00 - $155,000.00 per year

Job description: Senior Full Stack Developer

Constellation seeks a Senior Full Stack Developer to join our Homeland Security Team. This role requires a strong front-end development background using React, along with hands-on Python experience for building data pipelines and automation workflows. The ideal candidate will help develop user-facing applications integrated with backend ETL processes that support operational reporting, data collection, and intelligent automation. This position involves close collaboration with analysts, engineers, and stakeholders to deliver mission-driven capabilities across multiple workstreams.

Key Responsibilities:

Design, develop, and maintain modern web applications using React that integrate with backend data automation workflows.
Build and support Python-based ETL pipelines to extract, transform, and load data into the enterprise reporting platform.
Collaborate with automation engineers, analysts, and cloud engineers to design intuitive, data-driven user interfaces.
Integrate frontend components with APIs and automation services built using tools such as Apache Airflow and Databricks.
Participate in sprint planning and technical discussions to refine system designs and requirements.
Ensure data accuracy, performance, and maintainability across frontend and backend components.

The ideal candidate must have the following experience, background, and credentials:

At least 5 years of experience in front-end development using React and hands-on experience using Redux for state management in production React applications
At least 2 years of experience developing Python scripts for automation or ETL workflows, including usage and familiarity with Pandas
Strong experience developing front-end applications using HTML, TypeScript, and CSS with a focus on responsive design and modern UI/UX
Strong understanding of RESTful APIs, React component design and common component libraries, and secure web development practices
Proficiency in writing unit tests using frameworks such as Jest
Experience working in a collaborative code environment and familiarity with Git, CI/CD pipelines, and modern development workflows
Bachelor’s degree in Computer Science, Software Engineering, or a related field
Be a U.S. citizen able to pass a background investigation by the client agency. DHS clearance with CBP/ICE or DoD Top-Secret preferred

Job Type: Full-time
Work Location: Remote

Benefits:

401(k)
401(k) matching
Dental insurance
Disability insurance
Flexible schedule
Flexible spending account
Health insurance
Life insurance
Professional development assistance
Vision insurance

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About the job

Apply before

Aug 21, 2026

Posted on

Jun 22, 2026

Job type

Full Time

Experience level

Senior

Salary

Salary: $135K – $155K per year

Education

Bachelor degree

Experience

5 years minimum

Location requirements

United States

Hiring timezones

United States +/- 0 hours

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About Constellation Inc

Learn more about Constellation Inc and their company culture.

View company profile

Constellation Inc is a trusted partner to the U.S. Federal Government, providing precise, mission-driven solutions that align with the unique business and technical needs of the public sector. Founded in 2006 and headquartered in Reston, Virginia, the company has spent nearly two decades supporting critical national security missions across federal agencies including the Department of Homeland Security (DHS), Customs and Border Protection (CBP), and FEMA.

The company delivers tailored consulting solutions that strengthen federal missions and drive measurable impact through four core capabilities: Analytics and Automation, Program Management, Digital Transformation, and Intelligence Community services. Constellation transforms raw government data from disparate sources into actionable insights, helps agencies modernize legacy systems to secure cloud-based solutions, and provides strategic support to help agencies define their concept of operations and deliver mission priorities.

With a highly skilled, security-cleared workforce, Constellation brings deep expertise in homeland security challenges, supporting agencies across their full operational lifecycle. The company has earned recognition including the CWMD Director's Award in 2010 and a Certificate of Merit from the World Customs Organization, demonstrating its commitment to excellence and proven track record of successful past performance.