Senior Specialist, Software Engineer

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 is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Senior Specialist, Software Engineer

Job Code: 46066

Job Location: Chantilly, VA, Colorado Springs, CO, Melbourne, FL or Rochester, NY

Job Schedule: 9/80: Employees work 9 out of every 14 days - totaling 80 hours worked - and have every other Friday off

Job Description:

L3Harris is seeking a Full Stack Software Engineer to help build and enhance mission-critical command-and-control applications supporting space domain missions. In this role, you will join a multidisciplinary team using Agile and DevSecOps practices to deliver new capabilities, modernize existing software, and solve complex technical problems in secure environments. This is an excellent opportunity for an engineer who enjoys backend development, API design, and collaborating across the stack to deliver real mission impact.

Essential Functions:

• Design, develop, test, and maintain software capabilities for mission-focused command-and-control applications.
• Build backend services and APIs using Java and Spring Boot, with opportunities to contribute across the full stack.
• Support integration, upgrades, and modernization efforts for operational mission software.
• Troubleshoot software issues, improve reliability, and help deliver a strong end-user experience.
• Work closely with software, systems, and mission partners in an Agile development environment.
• Contribute to modern DevSecOps practices including automated testing, CI/CD workflows, and containerized deployments.

Qualifications:

• Bachelor’s degree with a minimum of 6 years of relevant experience, or a Graduate degree with 4 years of relevant experience. In lieu of a degree, 10 or more years of directly related experience will be considered.
• Experience developing software in Java.
• Experience building applications with the Spring Boot framework.
• Experience with front-end development in React and Typescript.
• Experience designing or integrating RESTful web services.
• Experience with unit testing and software quality practices.
• Experience working with PostgreSQL or a similar relational database management system.
• Experience working in Agile software development environments such as SAFe, Scrum, or Kanban.
• Experience with container technologies such as Docker, Kubernetes, or OpenShift.
• Active Top Secret clearance with the ability to obtain and maintain SCI access.

Preferred Additional Skills:

• Experience building or supporting microservices-based architectures.
• Experience with cloud environments such as AWS or AWS GovCloud.
• Experience with front-end development technologies such as React, Angular, TypeScript, CSS/SCSS, or HTML.
• Experience supporting space, defense, or other mission-critical systems.
• Experience mentoring early-career engineers

In compliance with pay transparency requirements, the salary range for this role in California, Massachusetts, New Jersey, Washington, and the Greater D.C, Denver, or NYC areas is $111,500 - $207,500. The salary range for this role in Colorado state, Hawaii, Illinois, Maryland, Minnesota, New York state, Cleveland Ohio, and Vermont is $97,000 - $180,000. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location.

L3Harris also offers a variety of benefits, including:

• health and disability insurance
• 401(k) match
• flexible spending accounts
• EAP
• education assistance
• parental leave
• paid time off
• company-paid holidays

L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.