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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # HWIL Software Integration Engineer Stf (E4) Orlando, FL 11355 - **Company:** Lockheed Martin - **Location:** Orlando, FL, United States - **Experience:** Expert - **Salary:** $104,900.0 - $194,700.0 - **Contract:** Permanent contract - **Skills:** C++ (Programming Language), Network Analysis, Code Generation, Communications Protocols, Computer Engineering, Software Debugging, Ethernet, Field-Programmable Gate Array (FPGA), Hardware Design, Hardware Interface Design, Hardware-In-The-Loop Simulation, Software Architecture, Real-Time Operating Systems, Real Time Simulation, RTLinux, Software Engineering, Systems Integration, VxWorks, SC Clearance, Information Technology, Low Latency, Hardware Infrastructure - **Published:** October 26, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3467512745&tx=KJ1919FFG&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * Experience: 5 + years in software development, real-time integration, and HWIL environments; proven track record integrating missile hardware with real-time simulations. * Education/Training: Bachelor's degree in Computer Engineering, Software Engineering, Computer Science, or related STEM field (Master's preferred). * Active Secret clearance * Technical Expertise: * Proficiency in C/C++ and real-time operating systems (e.g., RedHawk, VxWorks, RTLinux). * Strong understanding of low-latency communication protocols (e.g., Ethernet/IP, MIL-STD-1553, CAN). * Working knowledge of RF testing, target-generation equipment, and missile hardware interfaces. * Hands-on experience with lab equipment (oscilloscope, spectrum analyzer, network analyzer). * Leadership & Communication: Demonstrated ability to lead multidisciplinary teams, influence senior stakeholders, and produce clear technical documentation and presentations. Desired Skills * Experience leading HWIL software integration for missile or aerospace programs, including latency budgeting and deterministic timing verification. * Familiarity with model-based development environments and automated code generation for real-time execution. * Knowledge of industry standards and best practices for HWIL real-time simulation design and implementation. * Experience coordinating with government customers for test support, requirement negotiation, and issue resolution. ## Description The HWIL Software Integration Engineer (E4) provides senior-level technical leadership for the development, integration, and verification of real-time, closed-loop Hardware-in-the-Loop (HWIL) simulations that fuse missile hardware components with high-performance software models. With 5 + years of relevant experience, the incumbent operates with technical authority, defines integration strategy, and represents Lockheed Martin to senior government and industry partners on technical matters. Core Responsibilities * Software Architecture & Strategy * Define and evolve the software architecture for HWIL test-beds, establishing standards for real-time code, low-latency data paths, and deterministic execution. * Lead the adoption of best-in-class architecture patterns across the program. * Missile Software & Model Integration * Direct the integration of missile flight-software, guidance algorithms, and sensor models into closed-loop simulation environments (including 6-DOF dynamics). * Real-Time Integration & Timing * Ensure end-to-end latency and timing budgets are met for hardware-to-software interfaces through time-domain analysis, jitter budgeting, and priority-based scheduling. * Implement and validate synchronization mechanisms between missile hardware (actuators, sensors, RF targets) and simulation models running on RTOS, FPGA, or HPC platforms. * Program Leadership * Serve as the lead HWIL software engineer, coordinating cross-functional teams (Systems, Electrical, Mechanical, Test, and Integration). * Mentor junior engineers and provide technical guidance to multidisciplinary groups. * Integration & Verification * Direct software-hardware integration activities, oversee debugging of interface protocols, timing mismatches, and data-integrity issues. * Hardware Interaction & Test Equipment * Apply advanced hands-on hardware skills (RF testing, cable-harness verification, target generation) to support software integration and resolve hardware-related anomalies. * Oversee use of test equipment such as oscilloscopes, spectrum/network analyzers, RF signal generators, and high-speed data acquisition systems. * Customer & Stakeholder Engagement * Act as the senior technical liaison with government customers for real-time simulation support, requirement clarification, and issue resolution.