Senior Full Stack Engineer — Federal Systems Modernization

Job overview

The Senior Full Stack Engineer role is remote, with work from anywhere in the United States during Eastern Time hours. Salary is $90,000–$115,000 per year. The role supports a federal government client modernizing mission-critical systems.

What you'll do

• Design, develop, and maintain full stack applications
• analyze legacy systems and workflows to identify core functionality
• translate operational requirements into scalable application designs
• develop backend services, RESTful APIs, and integration layers
• build and enhance user-facing components
• support analysis, design, development, testing, deployment, and maintenance
• troubleshoot across application, integration, and data layers
• collaborate with stakeholders, participate in code reviews, and uphold engineering practices. Requires U.S. citizenship and ability to obtain and maintain Public Trust clearance, plus seven or more years of full stack development experience.

What we're looking for

Skills & competencies

full-time

remote

senior full stack engineer

federal systems

legacy modernization

java

spring boot

rest apis

react

palantir

$90k–$115k

u.s. citizenship required

Work arrangement

• Weekend coverage required

Why this role

The target modernization platform is Palantir; required technologies include Java, Spring Boot, JavaScript, React, HTML, CSS, and relational databases.

About the employer

LIGHTFEATHER IO LLC is hiring for this role. Industry: Engineering Services. Sector: 54.