Software Engineer Sr - E3

Standard Job Description What We're Doing At Lockheed Martin Rotary and Mission Systems (RMS) in Owego, NY, we're developing mission-critical embedded software and advanced computing solutions for complex defense and aerospace systems. Our software supports safety-critical avionics, mission computers, embedded processing, and secure systems where reliability and performance matter. The Work As a Level 3 Senior Software Engineer, you'll work across the software development lifecycle, taking ownership of complex technical assignments and developing solutions that move from design into real mission systems. You'll collaborate with software, systems, hardware, cyber, and test engineers in a hands-on environment. Responsibilities include:

• Design, develop, test, debug, document, and integrate embedded software for avionics, mission computers, and secure processing systems.
• Develop software for RTOS and hypervisors such as LynxOS, VxWorks, Green Hills Integrity, or LynxSecure.
• Perform hands-on software/hardware integration, verification, troubleshooting, and system-level debugging using target hardware and laboratory instrumentation.
• Analyze and resolve complex issues involving processors, FPGAs, peripherals, and hardware/software interfaces.
• Apply software engineering standards, development processes, configuration management, and coding best practices.
• Support modern DevSecOps practices, including CI/CD and automated testing.
• Participate in peer reviews and technical design discussions.
• Provide technical guidance and mentorship to junior engineers.

Who We Are RMS Owego brings together software, systems, hardware, and integration expertise to develop advanced mission solutions. Our engineers work with real mission hardware in onsite laboratories, taking software from architecture and design through integration and test. Who You Are You're a software engineer who enjoys solving complex problems and working across engineering disciplines. You can independently tackle significant technical challenges, communicate effectively, and apply sound engineering judgment. Experience with embedded software, C/C++, RTOS, hypervisors, hardware/software integration, or safety-critical systems is highly valued. Why Join Us At Lockheed Martin, you'll work alongside experienced engineers on technology with real-world mission impact while continuing to grow your technical expertise. We offer flexible schedules, including 4x10 and Flex Time, comprehensive benefits, career development and mentorship, and hands-on opportunities from early development through laboratory integration and testing. Basic Qualifications

• Bachelor's degree or above from an accredited college in a STEM discipline (Computer Science, Computer Engineering, Software Engineering, or related technical field); with 5 years of related professional experience or 3+ years related experience required with a related Masters degree
• Professional embedded software development experience in C and/or C++.
• Familiar with developing and debugging software that controls embedded hardware, firmware, and FPGAs. Knowledge of hardware communication protocols such as PCIe, SPI, UART, and I2C
• Experience developing, integrating, and debugging software within a Real-Time Operating System (RTOS) or embedded Linux environment (e.g., Wind River VxWorks, LynxOS, Green Hills Integrity, or similar).
• Experience working with hardware/software interfaces (microcontrollers, microprocessors, FPGAs, or custom hardware).
• Willingness and ability to work onsite in Owego, NY, including working within closed/classified lab facilities.
• Ability to obtain and maintain a U.S. Government security clearance at the Secret level.
• Must be a US Citizen; this position will require a DoD government security clearance at the Secret level. This position is located at a facility that requires special access

Desired Skills

• Experience with Secure Processing concepts, cryptography, secure boot, or hypervisor technologies (e.g., LynxSecure).
• Experience developing low-level software, device drivers, and Board Support Packages (BSPs).
• Familiarity with open architecture initiatives and modular design standards (e.g., FACE, OMS, SOSA).
• Knowledge of hardware communication protocols (e.g., PCIe, Ethernet, SPI, UART, I2C, ARINC-429).
• Hands-on experience working in lab environments with test instrumentation (logic analyzers, oscilloscopes, serial consoles).
• Experience using Agile software development tools and methodologies (e.g., Git, Jira, Confluence, CI/CD).
• Experience with Test-Driven Development (TDD), unit testing frameworks (e.g., VectorCAST), and automated regression test benches.
• Familiarity with safety-critical software development processes (e.g., DO-178C).
• Experience mentoring junior engineers or leading small technical efforts.
• Active U.S. Secret clearance.

Pay Information Full-Time Salary Range: $98100.00 - $182100.00 At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow—both professionally and personally. The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.

• Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
• For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.