Security-Cleared Senior Full-Stack Engineer

Jobtome; Virginia; On-site; USD 97,000 - 180,000; Full time

Job summary

L3Harris is seeking a Senior Specialist, Software Engineering (Full Stack) to lead design and implementation of secure, scalable mission applications for MOSSAIC. You will work across backend services, APIs, and web UIs using Java, Python, TypeScript, and JavaScript.

The role requires a Bachelor’s Degree with 6+ years of related experience or a Graduate Degree with 4+ years, or 10+ years in lieu of a degree, plus an Active Secret Security Clearance.

Qualifications

• Bachelor's Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
• Active Secret Security Clearance.

Responsibilities

• Lead technical design and implementation of full-stack software capabilities, including backend services, APIs, and web UIs.
• Design scalable software using Java, Python, TypeScript, and JavaScript for service-oriented and microservices-based systems.
• Define secure integration patterns, service contracts, and data exchanges across distributed systems.
• Guide code reviews, software testing, documentation, and secure-development practices.
• Resolve complex software and integration issues across development, test, and deployment environments.
• Provide technical guidance and mentorship to software engineers while supporting sound engineering decisions.
• Coordinate technical dependencies with partner teams and contribute to delivery planning.
• Travel up to 15% as needed to support program and customer requirements.

Skills

Full-stack development

Software architecture

Mentorship

Secure coding

Education

Bachelor's Degree

Graduate Degree

10+ years experience in lieu of degree

Tools

Java

Python

TypeScript

JavaScript

Job description

L3Harris is seeking a Senior Specialist, Software Engineering (Full Stack) to lead design and implementation of secure, scalable mission applications for MOSSAIC. You will work across backend services, APIs, and web UIs using Java, Python, TypeScript, and JavaScript.

The role requires a Bachelor’s Degree with 6+ years of related experience or a Graduate Degree with 4+ years, or 10+ years in lieu of a degree, plus an Active Secret Security Clearance.