Senior Full-Stack Engineer: Java/Spring, Mission-Critical

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

Benefits offered by this job

Health and disability insurance

401(k) match

Flexible spending accounts

EAP

Education assistance

Parental leave

Paid time off

Company-paid holidays

Job summary

L3Harris Technologies, Inc. is seeking a Senior Specialist, Software Engineer to join a multidisciplinary team building mission-critical command-and-control applications. You will develop backend services and APIs in Java/Spring Boot while contributing to the full stack and collaborating with mission partners.

The role emphasizes Agile practices, automated testing, and containerized deployments in secure environments, with opportunities to shape end-to-end solutions across platforms.

Qualifications

• Bachelor’s or Graduate degree with relevant experience; 10+ years considered in lieu of degree.
• Experience developing software in Java and Spring Boot.
• Front-end experience with React and TypeScript.
• Designing or integrating RESTful web services.
• Experience with unit testing and software quality practices.
• Experience with PostgreSQL or similar relational DB.
• Familiarity with Agile work environments (SAFe, Scrum, Kanban).
• Experience with container tech (Docker, Kubernetes, OpenShift).
• Active Top Secret clearance with ability to obtain/maintain SCI access.

Responsibilities

• Design, develop, test, and maintain software capabilities for mission-focused command-and-control apps.
• Build backend services and APIs using Java/Spring Boot; contribute across the stack.
• Support integration, upgrades, and modernization of mission software.
• Troubleshoot issues, improve reliability, and enhance end-user experience.
• Collaborate with software, systems, and mission partners in Agile environments.
• Contribute to DevSecOps practices including automated testing, CI/CD, and containers.

Skills

Java

Spring Boot

React/TypeScript

RESTful services

Unit testing

Agile / SAFe / Scrum

PostgreSQL

Security clearance

Education

Bachelor’s degree + 6 years

Graduate degree + 4 years

10+ years experience in lieu of degree

Tools

Docker

Kubernetes

OpenShift

AWS GovCloud

Job description

L3Harris Technologies, Inc. is seeking a Senior Specialist, Software Engineer to join a multidisciplinary team building mission-critical command-and-control applications. You will develop backend services and APIs in Java/Spring Boot while contributing to the full stack and collaborating with mission partners.

The role emphasizes Agile practices, automated testing, and containerized deployments in secure environments, with opportunities to shape end-to-end solutions across platforms.