Senior Full-Stack Engineer, Mission-Centric Defense Tech

L3Harris Technologies, Inc.; Colorado Springs (CO); On-site; USD 97,000 - 180,000; Full time

Benefits offered by this job

Health insurance

Disability insurance

401(k) match

Flexible spending accounts

Employee Assistance Program

Education assistance

Parental leave

Paid time off

Company-paid holidays

Job summary

L3Harris Technologies, Inc. in Colorado Springs seeks a Senior Specialist, Software Engineering (Full Stack) to lead the design and implementation of secure, scalable full-stack software leveraging Java, Python, TypeScript, and JavaScript.

You will work on MOSSAIC/APE programs delivering C2 capabilities, sensor integration, and mission workflows. The role requires mentoring, strong collaboration with cross-functional teams, and travel up to 15%.

Qualifications

• Bachelor's Degree with 6+ years of related experience or graduate degree with 4+ years.
• Active Secret Security Clearance.
• Experience with Java, Python, TypeScript, and JavaScript in full-stack apps.

Responsibilities

• Lead technical design and implementation of full-stack capabilities (backend, APIs, UI).
• Design scalable systems using Java, Python, TypeScript and JavaScript.
• Define secure patterns, contracts, and data exchanges across distributed systems.
• Guide code reviews, testing, and secure development practices.
• Resolve complex software/integration issues across environments.
• Mentor engineers and support sound engineering decisions.
• Coordinate dependencies with partner teams and delivery planning.
• Travel up to 15% as needed.

Skills

Java

Python

TypeScript

JavaScript

C/C++

Rust

Go

Kubernetes

Kafka

RabbitMQ

ZeroMQ

NATS

GTK

Qt

Education

Bachelor's Degree

Graduate Degree

10 years of related experience in lieu of degree

Tools

GTK

Qt

Kubernetes

Job description

L3Harris Technologies, Inc. in Colorado Springs seeks a Senior Specialist, Software Engineering (Full Stack) to lead the design and implementation of secure, scalable full-stack software leveraging Java, Python, TypeScript, and JavaScript.

You will work on MOSSAIC/APE programs delivering C2 capabilities, sensor integration, and mission workflows. The role requires mentoring, strong collaboration with cross-functional teams, and travel up to 15%.