> Markdown version of [/jobs/ext/1509991-software-systems-engineer-level-3-4-aht](https://www.wearedevelopers.com/jobs/ext/1509991-software-systems-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). --- # Software Systems Engineer-Level 3/4 (AHT) - **Company:** Northrop Grumman - **Location:** Los Angeles, CA, United States - **Experience:** Experienced - **Salary:** $114,000.0 - $171,000.0 - **Contract:** Permanent contract - **Skills:** Testing (Software), Activity Diagram, Systems Engineering, Embedded Software, Hardware Design, Software Engineering, Product Software Implementation Methods, Software Requirements Analysis, Software Systems, Verification and Validation (Software), Subsystems, Systems Architecture, Systems Integration, Software Verification, Integration Tests - **Published:** July 30, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9067669/software-systems-engineer-level-34-aht ## About the Role This person will support the Stand in Attack Weapon (SiAW) Program. As a member of the Software team, you'll work in a fast-paced environment as the go between for the Software Engineering functional group and the Systems Engineering functional group. Candidate should possess Systems Engineering discipline knowledge with strong embedded software familiarity. Candidate will be responsible for analyzing, allocating requirements and specifications with various stakeholders., * Bachelor of Science in an Engineering discipline and a minimum of five (5) years of systems engineering experience with any exposure to requirements development and verification activities; or a Master's of Science with a minimum of three (3) years of systems engineering experience with any exposure to requirements development and verification activities. * Experience in systems engineering tools, such as DOORS, CAMEO. * Experience in Embedded Software, and ability to read code and verify the implementation per Software Requirements Specifications * Experience with system/subsystem/software/hardware integration, test, and verification * Experience in the defense industry and design in an aerospace environment * Current US Government Secret security clearance, adjudicated within the past 5 years Basic Qualifications Sr. Principal Software Systems Engineer (Level 4): * Bachelor of Science in an Engineering discipline and a minimum of eight (8) years of systems engineering experience with any exposure to requirements development and verification activities; will consider Master of Science in an Engineering discipline and a minimum of six (6) years of systems engineering experience with any exposure to requirements development and verification activities. * Experience in systems engineering tools, such as DOORS, CAMEO. * Experience in Embedded Software, and ability to read code and verify the implementation per Software Requirements Specifications * Experience with system/subsystem/software/hardware integration, test, and verification * Experience in the defense industry and design in an aerospace environment * Current US Government Secret security clearance, adjudicated within the past 5 years, * Experience in multiple aerospace and defense technologies (e.g., sensors, navigation aids, guidance electronics, controls, propulsion, structures, platforms). * Have technical knowledge in one or more military mission areas (e.g., Air, Land, Sea, Space, Cyber) * Experience in assessing legacy system architecture and innovation for future potential technology development. ## Description Responsible for translating system/subsystem level software requirements into software level requirements for each CSCI. Work with System and Software engineers to develop software architecture models. Support Verification and Validation of software product to ensure all integrated CSCIs function as intended. Experience in systems engineering including requirements analysis, requirements allocation, system design, software design, software implementation, software testing, system integration, field integration testing, and requirements verification. Experience in software/systems architecture using Cameo Enterprise Architecture (behavioral, structural, analytical) to develop use cases, activity diagrams and sequence diagrams. Familiarity in Writing Software Test Plans and Test Descriptions and running tests. ## Related Videos - [10M Data Records Lost, Underwater Computing, and Psychedelic Fish - Matthias Geniar](https://www.wearedevelopers.com/videos/1908-10m-data-records-lost-underwater-computing-and-psychedelic-fish-matthias-geniar) - [Quantum Computing - The tiny and the big challenges](https://www.wearedevelopers.com/videos/934-quantum-computing-the-tiny-and-the-big-challenges) - [Communicate efficiently with Software Architecture Diagrams](https://www.wearedevelopers.com/videos/379-communicate-efficiently-with-software-architecture-diagrams) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Develop on Windows, Deploy on Red Hat Enterprise Linux](https://www.wearedevelopers.com/videos/1600-develop-on-windows-deploy-on-red-hat-enterprise-linux) - [Crew Management System for Airlines: Plan duties for pilots & flight attendants worldwide](https://www.wearedevelopers.com/videos/1444-crew-management-system-for-airlines-plan-duties-for-pilots-flight-attendants-worldwide) ## Related Articles - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What Jobs Can You Get with a Software Engineering Degree?](https://www.wearedevelopers.com/magazine/398-what-jobs-can-you-get-with-a-software-engineering-degree) - [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering)