Senior Full-Stack Engineer – Mission-Critical & Secret

Jobtome; Pueblo (CO); On-site; USD 97,000 - 180,000; Full time

Job summary

L3Harris is recruiting a Senior Specialist, Software Engineering (Full Stack) for the MOSSAIC APE program in Colorado Springs, CO. You will lead design and implementation of secure, scalable mission applications using Java, Python, TypeScript, and JavaScript, supporting sensor integration and C2 workflows.

Required: a Bachelor’s or graduate degree with years of relevant experience, active Secret clearance, and a track record in full-stack development and secure software delivery.

Qualifications

• Bachelor's Degree with 6+ years of relevant experience, or graduate degree with 4+ years, or 10+ years without a degree.
• Active Secret Security Clearance.

Responsibilities

• Lead design and implementation of full-stack software capabilities (backend services, APIs, and web UIs).
• Design scalable software using Java, Python, TypeScript, and JavaScript for SOA and microservices.
• Define secure integration patterns and data exchanges across distributed systems.
• Guide code reviews, testing, and secure-development practices.
• Resolve complex software and integration issues across Dev, test, and deployment.
• Mentor engineers and coordinate dependencies with partner teams.
• Travel up to 15% as needed.

Skills

Java

Python

TypeScript

JavaScript

C/C++

Rust

Go

Kubernetes

Kafka

RabbitMQ

Education

Bachelor's Degree

Graduate Degree

Tools

Kubernetes

Apache Kafka

RabbitMQ

ZeroMQ

NATS

Job description

L3Harris is recruiting a Senior Specialist, Software Engineering (Full Stack) for the MOSSAIC APE program in Colorado Springs, CO. You will lead design and implementation of secure, scalable mission applications using Java, Python, TypeScript, and JavaScript, supporting sensor integration and C2 workflows.

Required: a Bachelor’s or graduate degree with years of relevant experience, active Secret clearance, and a track record in full-stack development and secure software delivery.