Senior Software Engineer, Mission-Critical Systems

L3Harris Technologies; Palm Bay (FL); On-site; USD 110,000 - 160,000; Full time

Job summary

L3Harris Technologies is seeking a Senior Specialist, Software Engineer in Palm Bay, FL to stay hands-on building software for mission-critical systems.

You will work on full-stack web apps with React/TypeScript/JavaScript and Python services, plus embedded software with hardware integration. This is an individual contributor role with leadership opportunities and a focus on secure, reliable systems.

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 TS/SCI security clearance is required.

Responsibilities

• Design, develop, integrate, and sustain high-reliability command-and-control software supporting customer missions and real-world assets.
• Build full-stack web applications using React, TypeScript, and JavaScript for responsive user experiences and Python services and APIs for backend capabilities.
• Develop and deploy containerized software using Docker, applying object-oriented design to create clean, maintainable, and testable code.
• Integrate software with unique hardware platforms and troubleshoot the interfaces, data flows, and runtime behavior that connect the two.
• Configure and troubleshoot basic Linux development, deployment, and runtime environments in support of software delivery and sustainment.
• Work directly with customers, systems engineers, and mission users to turn operational needs into practical technical solutions; contribute technical leadership through strong engineering judgment, design reviews, and peer collaboration.

Skills

Full-stack web development

React

TypeScript

JavaScript

Python

Docker

Linux

Active TS/SCI security clearance

Git

CI Polygraph

Education

Bachelor's Degree

Graduate Degree

Experience in lieu of degree (10+ years)

Tools

Git

CI Polygraph

Job description

L3Harris Technologies is seeking a Senior Specialist, Software Engineer in Palm Bay, FL to stay hands-on building software for mission-critical systems.

You will work on full-stack web apps with React/TypeScript/JavaScript and Python services, plus embedded software with hardware integration. This is an individual contributor role with leadership opportunities and a focus on secure, reliable systems.