Senior Full-Stack Software Engineer - Secret Clearance

Jobtome; Butte (MT); On-site; USD 97,000 - 180,000; Full time

Benefits offered by this job

Health and disability insurance

401(k) match

Flexible spending accounts

Employee Assistance Program

Job summary

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

Responsibilities include guiding code reviews, unit testing, and documenting secure development practices while mentoring engineers and coordinating with partner teams.

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 UI.
• Design scalable software using Java, Python, TypeScript, and JavaScript for SOA and microservices.
• Define secure integration patterns, service contracts, and data exchanges across distributed systems.
• Guide code reviews, testing, and secure-development practices.
• Resolve complex software and integration issues across dev/test/production.
• Provide technical guidance and mentorship to engineers.

Skills

Security clearance

Full-stack

Java

Python

TypeScript

JavaScript

Kubernetes

C/C++

Go

Education

Bachelor's Degree

Graduate Degree

Tools

Java

Python

TypeScript

JavaScript

Kubernetes

C/C++

Go

Job description

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

Responsibilities include guiding code reviews, unit testing, and documenting secure development practices while mentoring engineers and coordinating with partner teams.