Senior Principal Embedded Software Engineer

Integrated Sol for Sys Inc

Fort Walton Beach (FL)

Hybrid

USD 100,000 - 200,000

Full time

16 hours ago

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Benefits offered by this job

Competitive salary

Health & wellness benefits

Employee ownership

Medical, dental, and vision care

Paid time off

Parental leave

Group term life insurance

Tuition assistance & training

Job summary

Integrated Solutions for Systems, Inc. in Fort Walton Beach, FL is seeking a Senior Principal Embedded Software Engineer to lead flight software design for missile and UAS platforms.

The role demands deep C/C++ expertise, low-level embedded development, and DoD program experience to drive GNC, sensor fusion, and mission logic in real-time systems. The candidate should have a strong track record delivering flight-certified code, DoD acquisition challenges, and hands-on leadership in a fast-paced

Qualifications

15+ years of professional embedded software experience, with DoD aerospace or missile defense context.
Expert-level proficiency in C/C++ for resource-constrained embedded systems.
Familiarity with DoD airworthiness standards and RMF requirements.

Responsibilities

Lead architectural definition of embedded software for weapon systems and autonomous platforms.
Develop low-level drivers and middleware for MCUs, DSPs, and FPGAs (SoC).
Architect RTOS-based solutions (VxWorks, FreeRTOS, Green Hills) for deterministic behavior.
Collaborate with hardware engineers for HITL testing and timing diagnostics.
Implement flight control laws and EKF/GNC algorithms for embedded targets.
Lead SDLC through DoD milestones; mentor junior developers in secure coding.

Skills

C/C++ mastery

Embedded software

DoD aerospace

Security clearance

Education

Bachelor's in CS/CE/EE

Master's degree preferred

Tools

GCC

Git

CMake

Jenkins

Job description

Senior Principal Embedded Software Engineer

Fort Walton Beach, FL

Senior Principal Embedded Software Engineer (Missiles& UAS)

Position Overview IS4S is seeking an experienced SeniorPrincipal Embedded Software Engineer to lead the design and implementationof flight software for next-generation missile systems and Unmanned AircraftSystems (UAS). This is a leadership-heavy technical role requiring an expert inC/C++ and low-level embedded development. You will be responsible for thesoftware architecture that drives Guidance, Navigation, and Control (GNC)algorithms, sensor fusion, and mission logic in highly constrained, real-timeenvironments.

The ideal candidate has a proven track record of deliveringflight-certified code and navigating the complexities of DoD acquisitionprograms.

Key Responsibilities

SoftwareArchitecture & Design: Lead the architectural definition ofembedded software for complex weapon systems and autonomous platforms,ensuring modularity, scalability, and strict real-time performance.

EmbeddedDevelopment: Develop, low-level drivers, middleware, andapplication-layer software in C and C++ for various microcontrollers,DSPs, and FPGAs (SoC).

RTOSManagement: Architect software solutions utilizing Real-Time OperatingSystems (RTOS) such as VxWorks, FreeRTOS, or Green Hills Integrity,focusing on deterministic behavior and thread safety.

Hardware-SoftwareIntegration: Collaborate closely with electrical and systems engineersto bring up new hardware, perform hardware-in-the-loop (HITL) testing, anddebug complex timing issues using logic analyzers and JTAG debuggers.

FlightControl & GNC Support: Implement and optimize flight control lawsand navigation algorithms (EKF, GPS/INS) developed by the GNC team forefficient execution on embedded targets.

TechnicalLeadership: Drive the software development lifecycle (SDLC) throughformal DoD milestones (PDR, CDR, TRR). Lead code reviews and mentor juniordevelopers in embedded best practices and secure coding standards.

ProtocolImplementation: Develop and maintain communication stacks formilitary-standard protocols, including MIL-STD-1553, ARINC 429, CAN bus,and Mavlink.

Technical Qualifications

Education:Bachelor of Science in Computer Science, Computer Engineering, orElectrical Engineering; Master’s degree preferred.

Experience:15+ years of professional experience in embedded software engineering,with a significant portion dedicated to DoD aerospace or missile defenseprograms.

C/C++Mastery: Expert-level proficiency in C and C++ (including C++11/14/17standards) specifically tailored for resource-constrained embeddedsystems.

Low-LevelExpertise: Deep understanding of microprocessor architectures (ARM,PowerPC, RISC-V), memory management, interrupt handling, and DMA.

ToolchainProficiency: Expert experience with cross-compilers (GCC, LLVM),version control (Git), and automated build systems (CMake, Jenkins).

Cybersecurity& Safety: Familiarity with software airworthiness certification(e.g., DO-178C) and Risk Management Framework (RMF) requirements forsecure software.