Senior Specialist, Software Engineer

Responsibilities

Design, develop, test, and maintain mission-focused command-and-control software, including backend services and APIs, while supporting integration, upgrades, and modernization. Collaborate with software, systems, and mission partners in an Agile environment to troubleshoot issues, improve reliability, and deliver capabilities using automated testing, CI/CD, and containerized deployments.

Requirements

Requires a bachelor’s degree and at least six years of relevant experience, a graduate degree and four years of relevant experience, or at least ten years of directly related experience in lieu of a degree. Candidates need Java and Spring Boot experience, front-end experience with React and TypeScript, RESTful services, testing, relational databases, Agile practices, container technologies, and an active Top Secret clearance with the ability to obtain and maintain SCI access.

Skills

• Java
• Spring Boot
• React
• TypeScript
• RESTful Web Services
• API Design
• PostgreSQL
• Unit Testing
• Agile Development
• DevSecOps
• Docker
• Kubernetes
• OpenShift
• Microservices
• AWS
• Software Modernization

Benefits

• Health Insurance
• Disability Insurance
• 401(k) Match
• Flexible Spending Accounts
• Employee Assistance Program
• Education Assistance
• Parental Leave
• Paid Time Off
• Company-Paid Holidays

About this role

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, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements
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About L3Harris Technologies

Defense and Space Manufacturing · 10,001+ employees · headquartered in Melbourne, Florida