Senior Embedded Software Engineer - Space Systems : Sign-on bonus ($30K max)

L3Harris Space and Mission Systems is seeking a Lead Embedded Software Engineer for our Wilmington, MA location to join a team of experts developing Embedded Flight Software for space-based imaging payloads. This role requires strong technical depth in low-level embedded software, hardware interfacing, and multi-threaded application development, along with the ability to provide technical leadership and mentorship to junior engineers. The ideal candidate will have experience developing reliable software for mission-critical aerospace or space systems and familiarity with foundational frameworks such as NASA cFS or similar spaceflight software architectures. Essential Functions: Design, develop, test, and maintain embedded C++ software on the Linux operating system for space-based and mission-critical applications. Develop software that interfaces directly with hardware, including low-level I/O control, device communication, register-level interaction, and interrupt processing. Build and maintain multi-threaded applications with attention to determinism, synchronization, resource management, and system performance. Integrate and utilize targeted foundational software frameworks for space applications, such as NASA core Flight System (cFS) or comparable middleware and reusable flight software components. Support software architecture, implementation, debugging, and optimization across the full software development lifecycle. Collaborate closely with systems, hardware, integration, and test teams to ensure software meets mission, interface, and performance requirements. Participate in software bring-up, hardware/software integration, troubleshooting, and verification activities in lab and system environments. Contribute to code reviews, technical planning, software standards, and development best practices to improve quality, maintainability, and compliance. Provide technical leadership, including guiding design decisions, reviewing junior engineers’ work products, and mentoring entry-level staff in embedded software development methods and tools. Qualifications: Bachelor’s Degree in Computer Engineering, Computer Science, or related field and minimum 9 years of prior relevant experience. Graduate Degree and a minimum of 7 years of prior related experience. In lieu of a degree, minimum of 13 years of prior related experience. Ability to obtain a TS/SCI security clearance. 7 years experience in embedded software development, system design, debugging, and integration on aerospace products. 5 years experience with RTOS (e.g., VxWorks, FreeRTOS, RTLinux, QNX), and programming languages (C/C++, Python, scripting). Professional experience with DevOps practices, Jenkins, and continuous integration tools. Professional experience working with Versal, MicroBlaze, bare metal development, and kernel/device drivers. Professional experience with embedded command and control for various applications including mechanisms, serial communications and distributed messaging. Preferred Additional Skills: Active Top Secret or TS/SCI clearance is highly preferred Expertise in full spaced-based System lifecycle including requirements flow down and allocation, design, development, test, and sell-off. Knowledge of MBSE tools (e.g., Cameo) and wideband/narrowband telemetry and messaging. Experience in space payload systems and NASA Core Flight System/Core Flight Executive (cFS/CFE) or similar reusable software framework used in aerospace and spaceflight applications. Experience in Command & Control Software, Sensor Processing Systems, and Optical Systems/telescopes. Knowledge of microprocessor/microcontroller architecture and programming, and familiarity with FPGAs. Understanding of real-time and embedded Linux concepts, including inter-process communication, scheduling, and performance tuning. Experience in estimating large software programs for new business opportunities. Proficiency in release engineering, change and configuration management, and continuous integration. Experience in developing software for microcontrollers with interfaces (e.g., I2C, SPI, UART, CAN). Develop, customize, and maintain Board Support Packages (BSP) for various hardware platforms. Integrate BSP components, including bootloaders, device drivers, and operating systems. 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 $135,000.00 - $250,500.00 . 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. 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