Senior Software Developer Jobs in Princeton, WV (NOW HIRING)

Overview LMI is seeking an Integrating Firmware Engineer to support the development and integration of embedded firmware for next-generation mesh networking products used by Department of Defense customers. This role is ideal for an engineer looking to build experience across multiple areas of embedded systems while working alongside senior firmware, RF, and cybersecurity engineers. The Integrating Firmware Engineer will help implement firmware changes supporting the Nordic nRF54L Series platform, assist with hardware integration, contribute to rapid GNSS location capabilities, and support the team's continuous integration and continuous deployment (CI/CD) environment. U.S. citizenship is required. Candidates must be eligible to obtain a Secret security clearance. An active Secret clearance is preferred. LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed. Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors, helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value. Responsibilities Responsibilities * Develop and modify embedded firmware for the Nordic nRF54L Series platform. * Implement firmware updates required to support new hardware features, including GPIO and peripheral configuration changes. * Assist in integrating rapid GNSS location determination capabilities into embedded products. * Support the RF Firmware Engineer and Cryptography Firmware Engineer with firmware integration, testing, and validation. * Participate in hardware bring-up, debugging, and prototype testing activities. * Assist with development and maintenance of the team's CI/CD pipeline for embedded firmware builds and testing. * Perform firmware integration testing and support issue resolution across hardware and software components. * Collaborate with hardware, firmware, systems, and cybersecurity engineers throughout the development lifecycle. * Document firmware changes, testing procedures, and integration activities. * Participate in design reviews and technical discussions while building knowledge of embedded system architecture. Qualifications Required Qualifications * Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related STEM field. * 0-2 years of experience in embedded software or firmware development (internships and co-op experience welcomed). * Experience programming in C/C++. * Basic understanding of embedded microcontrollers and hardware interfaces such as GPIO, SPI, UART, and I2C. * Familiarity with embedded debugging tools and development environments. * Basic understanding of version control systems such as Git. * Strong analytical and problem-solving skills. * Ability to learn quickly and work effectively within a collaborative engineering team. * U.S. citizenship and the ability to obtain a Secret security clearance. Preferred Qualifications * Experience with Nordic Semiconductor microcontrollers or similar ARM Cortex-M platforms. * Familiarity with RTOS-based embedded development. * Exposure to GNSS technologies or wireless communication systems. * Familiarity with automated build systems, CI/CD tools, or DevOps concepts. * Experience with GitHub Actions, Jenkins, Azure DevOps, or similar automation tools. * Internship or academic project experience involving embedded systems or IoT devices. * Active Secret security clearance. Travel * Approximately 10-15% travel for engineering collaboration, hardware integration, customer support, and field testing as required. Target salary range: $60,000 - 95,000 Disclaimer: The salary range displayed represents the typical salary range for this position and is not a guarantee of compensation. Individual salaries are determined by various factors including, but not limited to location, internal equity, business considerations, client contract requirements, and candidate qualifications, such as education, experience, skills, and security clearances. #LI-SH1 Applicants must meet eligibility requirements for a U.S. Government security clearance. Only US Citizens are eligible for a security clearance. For this position, LMI will only consider applicants with security clearances or applicants who are eligible for security clearances, due to the nature of the work. Job Locations US-Remote