Full-Time
Software Engineer 3
Software Engineering
Posted on 8/17/2026
L3Harris Technologies
10,001+ employees
Defense technology solutions for national security
No salary listed
No H1B Sponsorship
Salt Lake City, UT, USA
In Person
On-site in Salt Lake City.
US Top Secret Clearance Required
Bachelor's, Master's
 Software Engineering (2) |
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- A bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or a related technical discipline with at least 4 years of relevant software engineering experience; or a graduate degree with at least 2 years of relevant experience; or equivalent relevant experience in lieu of a degree.
- Professional experience developing backend applications and services using C# and modern .NET.
- Experience developing web applications using Angular and TypeScript.
- Experience designing and consuming RESTful APIs and integrating front-end applications with backend services.
- Experience with object-oriented design principles, common software design patterns, and maintainable coding practices.
- Experience with source control, defect tracking, peer review, and software configuration management tools.
- Ability to independently complete moderately complex assignments and contribute to project or process improvements under general supervision.
- Strong written and verbal communication skills, with the ability to work effectively across engineering disciplines.
- Ability to obtain and maintain a U.S. Department of Defense security clearance, if required for the program.
- Design, develop, test, debug, and maintain backend applications, services, and APIs using C# and modern .NET.
- Design and implement responsive, maintainable web user interfaces using Angular and TypeScript.
- Develop and support service integrations, business logic, data-access components, and application interfaces.
- Translate user needs, UX designs, and system requirements into usable, scalable software solutions.
- Participate in all phases of the software development lifecycle, including requirements analysis, design, implementation, integration, formal test, deployment, and production support.
- Collaborate with UX designers and cross-functional engineering teams to ensure user interfaces are usable, consistent, accessible, and aligned with operational needs.
- Apply secure coding practices, input validation, authorization controls, and appropriate error handling in application and API development.
- Develop and execute unit, integration, and user-interface test procedures, and support software quality assurance activities.
- Analyze and improve application performance, stability, scalability, maintainability, and security.
- Participate in peer code and design reviews; identify, track, troubleshoot, and resolve software defects.
- Create and maintain technical documentation, including software designs, API/interface definitions, test procedures, and user-facing documentation as needed.
- Provide technical guidance and review support to less-experienced engineers as appropriate.
- Contribute to technical estimates, bids, proposals, and planning activities in response to customer and program needs.
- Experience with ASP.NET Core, Entity Framework Core, SQL Server, and relational database design.
- Experience with Angular component architecture, RxJS, state management, and automated front-end testing.
- Experience developing secure APIs using established authentication and authorization standards.
- Experience with Azure DevOps, Git, CI/CD pipelines, automated build/test environments, and containerized deployments.
- Familiarity with distributed systems, message-based architectures, TCP/IP networking, and hardware or external-system integrations.
- Experience working on Department of Defense programs or in a regulated engineering environment.
- Active U.S. security clearance.
- Experience collaborating directly with UX professionals and applying usability, accessibility, and human-factors considerations to web application design.
L3Harris Technologies provides defense and national-security technology solutions across space, air, land, sea, and cyber domains. It develops integrated systems with advanced communications, surveillance, and reconnaissance to support government agencies and defense contractors under long-term contracts. The product combines hardware, software, and services to deliver secure, interoperable, mission-critical capabilities. Its goal is to help clients strengthen operational readiness and national security through reliable, multi-domain technologies and sustained partnerships.
Company Size
10,001+
Company Stage
IPO
Headquarters
Melbourne, Florida
Founded
1895
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Simplify's Take
What believers are saying
- July 29, 2026 backlog hit $42 billion, with revenue guidance raised to $23.7 billion.
- July 27, 2026 Pentagon expanded L3Harris propulsion capacity for Patriot and THAAD interceptors.
- July 13, 2026 contract supports at least 70 missile-tracking satellites, with five already in orbit.
What critics are saying
- August 17, 2026 CEO Christopher Kubasik was ousted after conduct violations.
- THAAD and Patriot ramps demand flawless execution; delays jeopardize seven-year Pentagon awards.
- Program concentration on missile defense ties growth to one customer family and procurement cycle.
What makes L3Harris Technologies unique
- July 13, 2026 SDA awarded L3Harris 18 Golden Dome missile-defense satellites.
- L3Harris controls Patriot, THAAD, and NGI propulsion across multiple manufacturing sites.
- January 5, 2026 reorganization sharpened three segments around missile, space, and communications.
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Benefits
Health Insurance
Disability Insurance
401(k) Retirement Plan
401(k) Company Match
Paid Vacation
Paid Holidays
Mental Health Support
Relocation Assistance
Growth & Insights and Company News
6 month growth
↑ 14%1 year growth
↑ 14%2 year growth
↑ 14%L3Harris Technologies selected Intuitive Machines on 4 August to build 18 advanced spacecraft platforms for the Space Development Agency's Accelerated Missile Defense Tranche 3 mission. Intuitive Machines will manufacture and deliver the satellite platforms to host L3Harris' payload technology for national security space operations. L3Harris reported Q2 2026 revenue of $5.9 billion, an 8% year-over-year increase, with net income of $600 million. The company raised its full-year 2026 revenue guidance to $23.2 billion–$23.7 billion, backed by a $42.0 billion backlog. Intuitive Machines reported Q2 2026 revenue of $206 million, more than four times its prior-year level. However, the company posted an operating loss of $47 million and burned $84 million in cash during the quarter, leaving $367 million in cash. Its backlog expanded to a record $1.8 billion.
Christopher Kubasik has been ousted as CEO of L3 Harris following allegations of misconduct. According to Semafor, citing sources familiar with the matter, an investigation found he was engaged in an inappropriate relationship with a subordinate. This marks the second time Kubasik has been forced out of a leadership position under similar circumstances. In 2012, he was set to become CEO of Lockheed Martin but resigned after an ethics investigation confirmed he had a close personal relationship with a subordinate employee. L3 Harris, headquartered in Melbourne, Florida, announced Kubasik's departure on 17 August. The company said the misconduct was unrelated to financial reporting, controls, customer relationships or operational performance. Kubasik will retain some vested stock options but won't receive severance payments.
L3Harris Technologies announced the immediate departure of CEO Christopher Kubasik following a conduct review, causing shares to fall roughly 2.7% in premarket trading Monday. The board appointed Sam Mehta as president and CEO, whilst Lewis Hay III became independent chairman. The company stated Kubasik's conduct was inconsistent with its Code of Conduct, though unrelated to financial reporting, controls, customer relationships, or operational performance. Following an investigation with independent counsel, the board entered into a separation agreement with Kubasik. Mehta joined L3Harris in 2023 and brings over 25 years of aerospace and defence leadership experience. He previously led segments comprising more than 80% of the company's total revenue. Despite the leadership change, L3Harris reaffirmed its 2026 consolidated revenue and financial guidance.
L3Harris Technologies has successfully completed a hot-fire test of its stage two advanced large solid rocket motor for the Missile Defense Agency's Next Generation Interceptor programme. The company conducted the test as part of the Lockheed Martin team developing the homeland missile defense system. The test validated the system's design integrity, with the motor completing a full-duration burn in a simulated high-altitude, vacuum environment. Engineers evaluated performance in conditions mimicking Earth's upper atmosphere. L3Harris serves as the primary propulsion and control systems provider for NGI, producing both stage one and stage two rocket motors, plus the Attitude Control System and Divert and Attitude Control System. The company manufactures components across facilities in California, Virginia, Alabama, and Arkansas.
Iran's recent attacks in the Strait of Hormuz and Red Sea have exposed critical shortages in defense supplies, particularly drones, precision weapons, and artillery shells. This situation presents opportunities for defense contractors positioned to scale production. AeroVironment secured a $186 million US Army order in February 2026 for Switchblade loitering munitions, part of a five-year contract with a $990 million ceiling. The systems enable small units to destroy armored vehicles without larger missiles. L3Harris Technologies reported orders of $7.8 billion in Q1 2026, with a book-to-bill ratio of 1.4 and record backlog of $40.7 billion. By Q2, backlog reached $42 billion on $7.3 billion in new orders, with revenue increasing 8% to $5.9 billion. Both companies are positioned to benefit from increased demand driven by ongoing conflicts.