Senior Specialist, Software Engineering - Back End Developer
At a glance
Senior Backend Engineering role at L3Harris Technologies. Colorado Springs · $97,000–$180,000 base.
techroles summary, based on the employer's posting.
What you'll do
- Build backend web applications and distributed services with Java, Spring Boot, and SQL
- Take software through design, coding, integration, testing, deployment, and ongoing support
- Improve and troubleshoot backend services, database calls, and system performance
- Coordinate with front-end developers, systems engineers, testers, and mission stakeholders
What you bring
- A bachelor’s degree and at least six years of related experience, or a graduate degree and four years
- Without a degree, at least ten years of relevant experience
- You can obtain a Secret clearance and maintain it for this role
Who this fits
This senior backend role suits someone who can work independently and alongside cross-functional teams. It is based in Colorado Springs and follows a 9/80 schedule, with every other Friday off. The role requires the ability to obtain and maintain a U.S. security clearance.
From the employer
Job Title: Senior Specialist, Software Engineering - Back End Developer
Job Code: 44018
Job Location: Colorado Springs, CO
Job Schedule: 9/80 - Employees work 9 out of every 14 days - totaling 80 hours worked (Every Other Friday Off)
Job Description:
Join L3Harris and the ATLAS team to build mission-critical backend capabilities that directly support the U.S. Space Force. In this role, you’ll use Java, Spring Boot, and SQL to design and develop high-impact services for the Advanced Tracking & Launch Analysis System, helping operators make better decisions in a space mission environment. It’s a chance to work on meaningful national security challenges, collaborate with strong technical teams, and see your software used in real-world operations. If you’re looking for work that combines modern backend development with purpose, scale, and mission impact, ATLAS is a compelling place to do it.
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Essential Functions:
- Expertise in backend development of web applications using Java, Spring Boot, and SQL; experience developing and maintaining scalable, reliable distributed services and APIs.
- Support and participate in all phases of the software development life cycle, including design, implementation, integration, testing, deployment, and sustainment.
- Develop, optimize, and troubleshoot backend services, database interactions, and system performance in a mission-critical environment.
- Self-motivated and able to work independently or in a team environment.
- Strong ability to collaborate with cross-functional teams, including front-end developers, systems engineers, testers, and mission stakeholders.
- Must be able to obtain a U.S. Security clearance to maintain this position.
- Excellent written and verbal communication skills.
Qualifications:
- Bachelor’s Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
- Possess or ability to obtain Secret clearance
Preferred Additional Skills:
- Experience with containerization (Docker, OCI‑compliant systems).
- Experience with Linux and Windows Server environments
- Experienced professional with proficient knowledge of web development
- Familiarity with GraphQL APIs or similar data‑querying patterns.
- DoD 8570 compliant; CompTIA Security+ is a plus.
- Background in space operations, SDA systems, or orbital M&S tools.
In compliance with pay transparency requirements, the salary range for this role in Colorado state 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.
The application window for this position will close on 10/30/2026.
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