Senior Specialist, Software Engineer

L3Harris Space and Mission Systems are seeking a Space Software Engineer to develop software for Specialized Test Equipment (STE), Electrical Ground Support Equipment (EGSE), and embedded real-time systems supporting complex space-based payloads and subsystem integration. This role is centered on software development for ground and lab environments that interface with flight-like hardware, while also contributing to embedded software design and implementation for real-time control, command and telemetry handling, and subsystem integration. Essential Functions: Lead the design, development, and implementation of software for STE and EGSE used to command, monitor, configure, and support integration of space-based payloads and embedded subsystems. Develop application software, control software, service utilities, and scripted workflows used in lab, integration, and qualification environments. Design and implement embedded real-time software for subsystem control, device interfaces, telemetry processing, command handling, and hardware/software integration. Develop software that interfaces with lab instrumentation, processors, controllers, and custom electronics in support of checkout, diagnostics, and engineering use cases. Define software architecture, requirements allocation, interface behavior, and design artifacts for both ground-support and embedded software components. Collaborate with systems, electrical, mechanical, and test engineers to integrate payloads, controllers, sensors, and support equipment into cohesive operational workflows. Support software bring-up, hardware integration, low-level debugging, root cause analysis, and issue resolution across embedded and support-equipment environments. Contribute to software documentation, code reviews, development process execution, and technical planning for cost, schedule, and scope. Lead small technical teams and provide guidance on software implementation, reuse, maintainability, and lifecycle execution. Support transition from development through integration, verification, and mission or production readiness activities. Qualifications: Bachelor's Degree in Computer Engineering, Computer Science, Electrical Engineering, or related field 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. Experience developing software for aerospace, space, avionics, or other complex embedded systems. Experience developing STE, EGSE, bench, or lab support software used to control hardware, automate engineering tasks, or interface with electronics and instrumentation. Experience in embedded software development using C/C++ and scripting languages such as Python for integration, control, or automation tasks. Experience with real-time operating systems such as VxWorks, FreeRTOS, RTLinux, QNX, or similar real-time platforms. Experience integrating and debugging software at the hardware/software boundary. Experience with communication and control interfaces such as SpaceWire, MIL-STD-1553, RS-422, Ethernet, CAN, UART, SPI, I2C, or similar protocols. Experience developing scripted command, control, or checkout sequences for subsystems, support equipment, or integration environments. Ability to obtain a U.S. Security Clearance. Preferred Additional Skills: Ability to read and interpret engineering drawings, interface documents, and electrical schematics. Familiarity with STIG and Cyber hardening procedures. Knowledge of the space domain, including payload integration, command and telemetry flows, mission operations concepts, or space vehicle development environments. Experience with command and control software, embedded controllers, processor-based electronics, or subsystem management applications. Familiarity with motors, servo controllers, shutters, gimbals, actuators, focus mechanisms, and related electromechanical devices. Experience with imaging payloads, visible cameras, IR detectors, optical systems, or sensor processing applications. Experience developing software for microcontrollers, board support packages, device drivers, or low-level hardware interfaces. Familiarity with MATLAB/Simulink, LabVIEW, COSMOS, or similar engineering and integration toolchains. Experience with DevOps and configuration management tools such as Git, Bitbucket, Jenkins, Jira, and Confluence. Experience supporting integration, verification, qualification, or environmental test campaigns in aerospace or defense environments. Familiarity with open architecture standards, model-based systems engineering tools, or secure software development practices. 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. 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. L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish . For information regarding your Right To Work, please click here for English or Spanish . d24ad0b8-823f-4e68-a892-2986ccdf7392