Senior Full-Stack Software Engineer, Mission-Critical Dev

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

Benefits offered by this job

Health insurance

401(k) match

Flexible spending accounts

EAP

Education assistance

Parental leave

Paid time off

Company-paid holidays

Job summary

L3Harris Technologies in Colorado Springs, CO is seeking a Senior Specialist, Full-Stack Software Engineering to design and implement secure, scalable mission applications. You will work on MOSSAIC/APE projects using Java, Python, TypeScript, and JavaScript, delivering both backend services and rich web UIs.

You will mentor engineers, lead technical reviews, and collaborate across teams to meet program deadlines. This role requires a current security clearance and supports up to 15% travel.

Qualifications

• Bachelor's Degree and minimum 4 years of prior relevant experience.
• Graduate Degree and a minimum of 2 years of prior related experience.
• In lieu of a degree, minimum of 8 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 SOA and microservices.
• Define secure integration patterns and data exchanges across distributed systems.
• Guide code reviews, testing, documentation, and secure-development practices.
• Coordinate dependencies and contribute to delivery planning and execution.
• Travel up to 15% as needed

Skills

Java

Python

TypeScript

JavaScript

Security clearance

Education

Bachelor's Degree

Graduate Degree

Tools

C/C++

Rust

Go

Kubernetes

Docker

Kafka

RabbitMQ

ZeroMQ

NATS

Job description

L3Harris Technologies in Colorado Springs, CO is seeking a Senior Specialist, Full-Stack Software Engineering to design and implement secure, scalable mission applications. You will work on MOSSAIC/APE projects using Java, Python, TypeScript, and JavaScript, delivering both backend services and rich web UIs.

You will mentor engineers, lead technical reviews, and collaborate across teams to meet program deadlines. This role requires a current security clearance and supports up to 15% travel.