> Markdown version of [/jobs/ext/3697285-embedded-software-engineer-level-3-4-aht](https://www.wearedevelopers.com/jobs/ext/3697285-embedded-software-engineer-level-3-4-aht). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Embedded Software Engineer-Level 3/4 (AHT) - **Company:** Northrop Grumman Systems Corporation - **Location:** Los Angeles, CA, United States - **Experience:** Experienced - **Salary:** $114,000.0 - $171,000.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Embedded Software, Hardware Design, Software Architecture, Real-Time Operating Systems, Software Engineering, Software Requirements Analysis, Verification and Validation (Software), Systems Architecture, Systems Integration, Universal Asynchronous Receiver/Transmitter, VxWorks, Real Time Systems, Integration Tests - **Published:** October 12, 2026 - **Apply:** https://www.juju.com/job/1_ngrum5-R10254486 ## About the Role of software engineering experience with any exposure embedded systems; will consider Master of Science in an Engineering discipline and a minimum of three (3) years of software engineering experience with any exposure embedded systems. + Experience in developing RTOS such as vxWorks + Experience in Embedded Software, and ability to read code and verify the implementation per Software Requirements Specifications + Experience developing and troubleshooting embedded communication interfaces and protocols such as UART, RS-232/422, CAN, ARINC 429, or similar standards + Experience integrating embedded software systems with hardware, including troubleshooting and resolution of hardware/software interface issues. + Current US Government DoW Secret security clearance **Sr. Principal Embedded Software Engineer (Level 4):** + Bachelor of Science in an Engineering discipline and a minimum of eight (8) years of software engineering experience with any exposure embedded systems; will consider Master of Science in an Engineering discipline and a minimum of six (6 years of software engineering experience with any exposure embedded systems. + Experience in developing RTOS such as vxWorks + Experience in Embedded Software, and ability to read code and verify the implementation per Software Requirements Specifications + Experience developing and troubleshooting embedded communication interfaces and protocols such as UART, RS-232/422, CAN, ARINC 429, or similar standards + Experience integrating embedded software systems with hardware, including troubleshooting and resolution of hardware/software interface issues. + Current US Government DoW Secret security clearance **Preferred Qualifications:** + Experience in multiple aerospace and defense technologies (e.g., sensors, navigation aids, guidance electronics, controls, propulsion, structures, platforms). + Experience with MIL-STD-1553, including system architecture, software/hardware integration, verification, testing, and troubleshooting. + Experience leading software/hardware integration activities (system bring-up, root-cause analysis, and troubleshooting using laboratory test and diagnostic equipment). + Experience in assessing legacy system architecture and innovation for future potential technology development. ## Description The ideal candidate has strong embedded software engineering expertise and a solid background in real-time systems, and will be responsible for developing, integrating, and testing software on lab assets. **Responsibilities:** + Implement software based on software-level requirements and defect reports. + Collaborate with systems and software engineers to develop and maintain software architecture models. + Develop, integrate, and test software on lab assets. + Support verification and validation activities to ensure all integrated CSCIs function as intended. + Participate in embedded software development activities, including implementation, unit/integration testing, system-level integration, field integration testing, and requirements verification. + Develop software in real-time operating systems (RTOS), such as VxWorks. **Basic Qualifications Principal Embedded Software Engineer (Level 3):** + Bachelor of Science in an Engineering discipline and a minimum of five (5) years